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 Detroit Water and Sewerage Department Wastewater Master Plan DWSD Project No. CS-1314 Basis of Cost Estimates Technical Memorandum Original Date: May 8, 2003 Revision Date: September 2003 Author: Tucker, Young, Jackson, Tull Inc.

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7182019 Basis of Cost Estimates

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Detroit Water and Sewerage Department

Wastewater Master PlanDWSD Project No CS-1314

Basis of Cost Estimates

Technical MemorandumOriginal Date May 8 2003 Revision Date September 2003 Author Tucker Young Jackson Tull Inc

7182019 Basis of Cost Estimates

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September 2003 i

Table of Contents

1 Purpose 1 2 Methodology 1

21 Wastewater Conveyance Facilities 1 22 Wastewater Treatment Facilities 2

3 Limitations3 4 Allowances and Contingencies3 5 Cost Index5 6 Program 1 Sewer Infrastructure Program7

61 Subprogram No 1A Lateral and Connector Sewers ndash Cleaning Sediment Disposal ampCondition Assessment 7 62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning Disposal and ConditionAssessment 8 63 Subprogram No 1C Lateral amp Connector Sewer Improvements 9 64 Subprogram No 1D Interceptor and Trunk Sewer Improvements10 65 Subprogram No 1E Manholes and Catch Basin Improvements13 66 Subprogram No 1F Regulators Outfalls Backwater Gates Diversion Dams and In-System Storage 14 67 Subprogram No 1G Pump Stations19 68 Subprogram No 1H Meters 20

7 Program 2 CSO and SSO Control Program 21 71 Ongoing CIP Projects 21 72 New Projects21 73 CSO Rehabilitation 22

8 Program 3 System Control and Wastewater Treatment Program22 81 Wastewater Treatment Plant Ongoing and Major Rehabilitation 22

Appendix A Data Tables Used for CIP Appendix A ndash Data Tables Used for CIP 26 Appendix B ndash Data Tables Not Used for CIP 38

B1 Alternate Data Category Tables38

B15 Historical References 47 B16 Means and Manufacturersrsquo Estimates 48 B17 Meanrsquos Unit Cost Estimates53

Appendix C Unit Costs for Treatment Facilities56 Appendix D Wastewater Treatment Plant Ongoing Repair and Replacement CostEstimates64 Link to Complete Spreadsheets 65

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September 2003 1

Basis of Cost Estimates

1 PurposeIn the development of a Master Plan for wastewater conveyance and treatment thatextends 50 years into the future it is necessary to utilize a set of common assumptionsas to the capital cost of facility construction The cost assumptions provide the basisfor establishing the estimated annual expenditure in the capital improvement plan(CIP) that was developed as a component of the Detroit Wastewater Master Plan(WWMP)

The guidelines are intended to provide unit costs for construction and rehabilitationof conveyance and treatment facilities These unit costs can then be used to establishtotal costs of planning alternatives for comparative purposes Unit costs can also beapplied to recommended system upgrades improvements and rehabilitation projectsto develop total project costs for CIP development

While conveyance facilities are common elements of the DWSD system the treatmentfacilities being investigated are each somewhat unique in nature and thus not asreadily subjected to the application of generalized unit cost factors For this reason adifferent approach to cost development has been employed for treatment facilities

2 MethodologyDevelopment of component costs for a Master Plan covering the range of potentialproject types anticipated within the DWSD planning area over a 50-year time framerequired evaluation of historic costs as well as ldquoground uprdquo estimates These costscan be applied to proposed projects with varying site conditions and complexities

throughout the planning area

21 Wastewater Conveyance Facilities

To better account for a range of conditions if possible the unit costs were derivedfrom a convergence of two sources The cost estimates for wastewater conveyancefacilities are based on an assembly and comparison of historical construction costsfrom multiple cost estimates and reports compiled from 1971 to present andconstruction estimates using the RS Means Sitework and Landscaping Data andmethodology

Since in many cases the two methods produced differing results final unit costs

were established within the range of estimated costs through review by experienceddesign construction professionals Section B15 in Appendix B presents the historicalcost development Section B16 in Appendix B presents the Means method costdevelopment In some cases one of the two estimating methods was applicable forconveyance facilities

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 2

It was necessary to establish a time reference for historical data reviewed as part ofthe cost evaluation The year 2003 was selected as this reference point for the CIPdevelopment

The CIP developed for the Wastewater Master Plan (WWMP) used 2003 as the baseyear Section 2 contains the base data for the CIP estimates Cost data tables thatwere used for the CIP estimates are contained in Appendix A The 2000 costs fromthese tables were escalated to 2003 costs using the ENR Construction Cost Index (CCI)shown in Table 1

Both Means estimates and historical costs were calculated to use the year 2003 as abase Historical sources which are taken from the year in which they were reportedwere adjusted to 2003 unit costs using the ENR Construction Cost Index (CCI) Costsfor specific items were then averaged to determine the historical unit cost in year 2003dollars It should be noted that some projects with costs that were extremely high orlow compared to the others for the same type of facility were excluded from theaverage Some assumptions were made for the historical data due to a lack of detail

in the original estimates For example many of the pipe depths were assumed basedon size For sections where variable depths are shown the original estimate which isbased upon a shallower depth is multiplied by a factor to obtain a number for thedeeper depths

These factors were obtained from the RS Means estimates and then applied to thehistorical data Where historical costs were not available manufacturers estimateswere used

Section B16 in Appendix B shows the estimates based on RS Means costs for thesame material and the same assumed conditions as in the cost guidelines section The

RS Means numbers were taken from the 2002 Means data then converted to the year2000 using the suggested Means factors for year and location (Detroit) adjustmentFor example an item costing $23 in 2002 would be multiplied by the index in 2000(959) then divided by the index for 2002 (100) to obtain $2206 then adjusted for thelocation by multiplying by 962 the Means city cost index to give an adjusted 2000price of $2122 These 2000 values were then escalated to 2003 values for the unitcosts used in the CIP development

22 Wastewater Treatment Facilities

To address the treatment needs within the planning area over the 50-year planningperiod a series of treatment alternatives were developed by Tetra Tech MPS Theseranged from expansion of treatment capacity at the existing Detroit WWTP toutilization of existing outlying (satellite) facilities with upgrade and expansion inPontiac Warren andor Mt Clemens to construction of dedicated facilities to treatwet weather flow and the dewatered flows from CSO and SSO storage facilities Eachof these alternatives has been documented in technical memoranda specific to thealternative type

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 3

The three technical memoranda describing alternativesndash Expanded Facilities withinthe City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility- contain detailed descriptions ofthe proposed facilities and include as appendices the complete cost estimates foreach facility

As part of the alternatives development conceptual (planning level) cost estimateswere developed for the facilities being proposed These estimates would be based onspecific facility locations preliminary facility layouts and defined treatment processcapacities Because this additional detail is available more detailed estimates couldbe prepared than could be expected for conveyance facilities

These estimates used standard construction cost estimating procedures and formatsDesigners broke down facilities by each component process and prepared costestimates at the process level for the specific size and configuration appropriate foreach facility

Appendix C contains the treatment facility unit cost tables derived from thealternatives Any unit costs for conveyance items used in these alternative estimatessuch as pipes were used with other data in calculating the CIP costs

3 LimitationsEvery construction project presents unique conditions with respect to location siteconstraints and soil or geotechnical considerations Also construction industrymarket conditions can greatly affect project costing By considering both historicalcosts as well as current cost estimating methods an attempt was made to account forthe range of potential costs However no estimates can be considered final until

complete construction plans and specifications have been prepared At the MasterPlanning stage these unit costs as well project costs derived from them need to beevaluated appropriately Thus these generalized costs are appropriate forcomparison of alternative approaches to providing service but additional detailshould be provided for site-specific construction estimates

4 Allowances and ContingenciesAt every stage of construction cost estimating certain unknown factors need to beaccounted for in the development of estimated costs This is even true at the timefinal plans and specifications are completed for a specific project It is especiallycritical at the planning stage The unit costs presented throughout this technical

memorandum are base construction costs for the most part This means that in mostcases no allowances or contingencies of any type have been applied Contingenciesneed to be added to cost estimates prior to inclusion in the CIP

The following cost categories need to be considered in the development of completecost estimates Contractor Overhead and Profit Contingency and Engineering LegalAdministrative and Management

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 4

Contractor Overhead and Profit accounts for the markup that contractors employ tocover costs such as mobilization and the profit they would expect to garner from theproject

The Contingency markup has two main parts Planning Level Contingency andContractor Contingency The Planning Level Contingency accounts for theuncertainty of the cost estimate due to the basic level of design developmentappropriate at the planning level This contingency should decrease significantly aseach project proceeds from the Master Plan stage through the Project Plan stage thePreliminary Design Stage and the Final Design Stage For a Master Plan looking 50years into the future the contingency will be a considerable portion of the total costsThe contractor contingency allows for uncertainty in the final contract cost due tomarket conditions at the time the project is bid and for potential changes to theproject during the construction stage (change orders)

Engineering Legal Administrative and Management markups account for severalaspects of the projects These include providing funds for performing the engineering

design calculations preparing plans and specifications bidding the constructioncontract and awarding the work contractor oversight shop drawing review andapproval on site inspection services change order development development ofrecord drawings and contract close out They also account for the costs associatedwith legal review of construction contracts and when necessary the involvement offinancial professionals in preparation of bond statements and the sale of bonds

A review of contingencies used in other recent DWSD projects led to the use of thefollowing multipliers For new construction (replacement) or major rehabilitation themultipliers applied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 30 of total construction cost includingcontractor overhead and profit

Engineering Legal 20 of total construction cost includingAdministrative and Management contractor overhead and profit

For all other categories (inspection cleaning rehabilitation etc) the multipliersapplied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 15 of total construction cost includingcontractor overhead and profit

Engineering Legal 10 of total construction cost includingAdministrative and Management contractor overhead and profit

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 5

Most unit costs presented in this technical memorandum are basic construction costswithout contingencies The above contingencies needed to be added to the base costsas project specific estimates are developed The estimates that are based on actualcosts from past projects already include these contingencies

5 Cost IndexHistorical costs have been adjusted using data from the Engineering News Record(ENR) Construction Cost Index History which provides annual cost indices from1913 to present Table 1 shows the annual cost indices from 1969 to 2002Extrapolation of this data gives the annual indices for the year 2003

The cost estimates developed for the CIP used a 2003 cost The 2003 costs wereobtained by escalating any base data used from their base year to 2003 using the CCIUsing the example for a 1990 estimated cost for 12 sanitary line of $212 per linearfoot convert it to 2003 cost by dividing the unit price by the yearrsquos index (2124732)Then multiply by the year 2003 index (6698) to get the escalated 2003 unit cost of $300

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 6

Table 1ENR Construction Cost Index (CCI)

Year Index Year Index

1969 1269 1986 4295

1970 1381 1987 4406

1971 1581 1988 4519

1972 1753 1989 4615

1973 1895 1990 4732

1974 2020 1991 4835

1975 2212 1992 4985

1976 2401 1993 5210

1977 2576 1994 5408

1978 2776 1995 5471

1979 3003 1996 5620

1980 3237 1997 5825

1981 3535 1998 5920

1982 3825 1999 6060

1983 4066 2000 6221

1984 4146 2001 6342

1985 4195 2002 6538

2003 6698

Index for 2002 was averaged in 1202 using 11 months of data This number was forecasted

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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September 2003 i

Table of Contents

1 Purpose 1 2 Methodology 1

21 Wastewater Conveyance Facilities 1 22 Wastewater Treatment Facilities 2

3 Limitations3 4 Allowances and Contingencies3 5 Cost Index5 6 Program 1 Sewer Infrastructure Program7

61 Subprogram No 1A Lateral and Connector Sewers ndash Cleaning Sediment Disposal ampCondition Assessment 7 62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning Disposal and ConditionAssessment 8 63 Subprogram No 1C Lateral amp Connector Sewer Improvements 9 64 Subprogram No 1D Interceptor and Trunk Sewer Improvements10 65 Subprogram No 1E Manholes and Catch Basin Improvements13 66 Subprogram No 1F Regulators Outfalls Backwater Gates Diversion Dams and In-System Storage 14 67 Subprogram No 1G Pump Stations19 68 Subprogram No 1H Meters 20

7 Program 2 CSO and SSO Control Program 21 71 Ongoing CIP Projects 21 72 New Projects21 73 CSO Rehabilitation 22

8 Program 3 System Control and Wastewater Treatment Program22 81 Wastewater Treatment Plant Ongoing and Major Rehabilitation 22

Appendix A Data Tables Used for CIP Appendix A ndash Data Tables Used for CIP 26 Appendix B ndash Data Tables Not Used for CIP 38

B1 Alternate Data Category Tables38

B15 Historical References 47 B16 Means and Manufacturersrsquo Estimates 48 B17 Meanrsquos Unit Cost Estimates53

Appendix C Unit Costs for Treatment Facilities56 Appendix D Wastewater Treatment Plant Ongoing Repair and Replacement CostEstimates64 Link to Complete Spreadsheets 65

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September 2003 1

Basis of Cost Estimates

1 PurposeIn the development of a Master Plan for wastewater conveyance and treatment thatextends 50 years into the future it is necessary to utilize a set of common assumptionsas to the capital cost of facility construction The cost assumptions provide the basisfor establishing the estimated annual expenditure in the capital improvement plan(CIP) that was developed as a component of the Detroit Wastewater Master Plan(WWMP)

The guidelines are intended to provide unit costs for construction and rehabilitationof conveyance and treatment facilities These unit costs can then be used to establishtotal costs of planning alternatives for comparative purposes Unit costs can also beapplied to recommended system upgrades improvements and rehabilitation projectsto develop total project costs for CIP development

While conveyance facilities are common elements of the DWSD system the treatmentfacilities being investigated are each somewhat unique in nature and thus not asreadily subjected to the application of generalized unit cost factors For this reason adifferent approach to cost development has been employed for treatment facilities

2 MethodologyDevelopment of component costs for a Master Plan covering the range of potentialproject types anticipated within the DWSD planning area over a 50-year time framerequired evaluation of historic costs as well as ldquoground uprdquo estimates These costscan be applied to proposed projects with varying site conditions and complexities

throughout the planning area

21 Wastewater Conveyance Facilities

To better account for a range of conditions if possible the unit costs were derivedfrom a convergence of two sources The cost estimates for wastewater conveyancefacilities are based on an assembly and comparison of historical construction costsfrom multiple cost estimates and reports compiled from 1971 to present andconstruction estimates using the RS Means Sitework and Landscaping Data andmethodology

Since in many cases the two methods produced differing results final unit costs

were established within the range of estimated costs through review by experienceddesign construction professionals Section B15 in Appendix B presents the historicalcost development Section B16 in Appendix B presents the Means method costdevelopment In some cases one of the two estimating methods was applicable forconveyance facilities

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 2

It was necessary to establish a time reference for historical data reviewed as part ofthe cost evaluation The year 2003 was selected as this reference point for the CIPdevelopment

The CIP developed for the Wastewater Master Plan (WWMP) used 2003 as the baseyear Section 2 contains the base data for the CIP estimates Cost data tables thatwere used for the CIP estimates are contained in Appendix A The 2000 costs fromthese tables were escalated to 2003 costs using the ENR Construction Cost Index (CCI)shown in Table 1

Both Means estimates and historical costs were calculated to use the year 2003 as abase Historical sources which are taken from the year in which they were reportedwere adjusted to 2003 unit costs using the ENR Construction Cost Index (CCI) Costsfor specific items were then averaged to determine the historical unit cost in year 2003dollars It should be noted that some projects with costs that were extremely high orlow compared to the others for the same type of facility were excluded from theaverage Some assumptions were made for the historical data due to a lack of detail

in the original estimates For example many of the pipe depths were assumed basedon size For sections where variable depths are shown the original estimate which isbased upon a shallower depth is multiplied by a factor to obtain a number for thedeeper depths

These factors were obtained from the RS Means estimates and then applied to thehistorical data Where historical costs were not available manufacturers estimateswere used

Section B16 in Appendix B shows the estimates based on RS Means costs for thesame material and the same assumed conditions as in the cost guidelines section The

RS Means numbers were taken from the 2002 Means data then converted to the year2000 using the suggested Means factors for year and location (Detroit) adjustmentFor example an item costing $23 in 2002 would be multiplied by the index in 2000(959) then divided by the index for 2002 (100) to obtain $2206 then adjusted for thelocation by multiplying by 962 the Means city cost index to give an adjusted 2000price of $2122 These 2000 values were then escalated to 2003 values for the unitcosts used in the CIP development

22 Wastewater Treatment Facilities

To address the treatment needs within the planning area over the 50-year planningperiod a series of treatment alternatives were developed by Tetra Tech MPS Theseranged from expansion of treatment capacity at the existing Detroit WWTP toutilization of existing outlying (satellite) facilities with upgrade and expansion inPontiac Warren andor Mt Clemens to construction of dedicated facilities to treatwet weather flow and the dewatered flows from CSO and SSO storage facilities Eachof these alternatives has been documented in technical memoranda specific to thealternative type

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 3

The three technical memoranda describing alternativesndash Expanded Facilities withinthe City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility- contain detailed descriptions ofthe proposed facilities and include as appendices the complete cost estimates foreach facility

As part of the alternatives development conceptual (planning level) cost estimateswere developed for the facilities being proposed These estimates would be based onspecific facility locations preliminary facility layouts and defined treatment processcapacities Because this additional detail is available more detailed estimates couldbe prepared than could be expected for conveyance facilities

These estimates used standard construction cost estimating procedures and formatsDesigners broke down facilities by each component process and prepared costestimates at the process level for the specific size and configuration appropriate foreach facility

Appendix C contains the treatment facility unit cost tables derived from thealternatives Any unit costs for conveyance items used in these alternative estimatessuch as pipes were used with other data in calculating the CIP costs

3 LimitationsEvery construction project presents unique conditions with respect to location siteconstraints and soil or geotechnical considerations Also construction industrymarket conditions can greatly affect project costing By considering both historicalcosts as well as current cost estimating methods an attempt was made to account forthe range of potential costs However no estimates can be considered final until

complete construction plans and specifications have been prepared At the MasterPlanning stage these unit costs as well project costs derived from them need to beevaluated appropriately Thus these generalized costs are appropriate forcomparison of alternative approaches to providing service but additional detailshould be provided for site-specific construction estimates

4 Allowances and ContingenciesAt every stage of construction cost estimating certain unknown factors need to beaccounted for in the development of estimated costs This is even true at the timefinal plans and specifications are completed for a specific project It is especiallycritical at the planning stage The unit costs presented throughout this technical

memorandum are base construction costs for the most part This means that in mostcases no allowances or contingencies of any type have been applied Contingenciesneed to be added to cost estimates prior to inclusion in the CIP

The following cost categories need to be considered in the development of completecost estimates Contractor Overhead and Profit Contingency and Engineering LegalAdministrative and Management

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 4

Contractor Overhead and Profit accounts for the markup that contractors employ tocover costs such as mobilization and the profit they would expect to garner from theproject

The Contingency markup has two main parts Planning Level Contingency andContractor Contingency The Planning Level Contingency accounts for theuncertainty of the cost estimate due to the basic level of design developmentappropriate at the planning level This contingency should decrease significantly aseach project proceeds from the Master Plan stage through the Project Plan stage thePreliminary Design Stage and the Final Design Stage For a Master Plan looking 50years into the future the contingency will be a considerable portion of the total costsThe contractor contingency allows for uncertainty in the final contract cost due tomarket conditions at the time the project is bid and for potential changes to theproject during the construction stage (change orders)

Engineering Legal Administrative and Management markups account for severalaspects of the projects These include providing funds for performing the engineering

design calculations preparing plans and specifications bidding the constructioncontract and awarding the work contractor oversight shop drawing review andapproval on site inspection services change order development development ofrecord drawings and contract close out They also account for the costs associatedwith legal review of construction contracts and when necessary the involvement offinancial professionals in preparation of bond statements and the sale of bonds

A review of contingencies used in other recent DWSD projects led to the use of thefollowing multipliers For new construction (replacement) or major rehabilitation themultipliers applied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 30 of total construction cost includingcontractor overhead and profit

Engineering Legal 20 of total construction cost includingAdministrative and Management contractor overhead and profit

For all other categories (inspection cleaning rehabilitation etc) the multipliersapplied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 15 of total construction cost includingcontractor overhead and profit

Engineering Legal 10 of total construction cost includingAdministrative and Management contractor overhead and profit

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 5

Most unit costs presented in this technical memorandum are basic construction costswithout contingencies The above contingencies needed to be added to the base costsas project specific estimates are developed The estimates that are based on actualcosts from past projects already include these contingencies

5 Cost IndexHistorical costs have been adjusted using data from the Engineering News Record(ENR) Construction Cost Index History which provides annual cost indices from1913 to present Table 1 shows the annual cost indices from 1969 to 2002Extrapolation of this data gives the annual indices for the year 2003

The cost estimates developed for the CIP used a 2003 cost The 2003 costs wereobtained by escalating any base data used from their base year to 2003 using the CCIUsing the example for a 1990 estimated cost for 12 sanitary line of $212 per linearfoot convert it to 2003 cost by dividing the unit price by the yearrsquos index (2124732)Then multiply by the year 2003 index (6698) to get the escalated 2003 unit cost of $300

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 6

Table 1ENR Construction Cost Index (CCI)

Year Index Year Index

1969 1269 1986 4295

1970 1381 1987 4406

1971 1581 1988 4519

1972 1753 1989 4615

1973 1895 1990 4732

1974 2020 1991 4835

1975 2212 1992 4985

1976 2401 1993 5210

1977 2576 1994 5408

1978 2776 1995 5471

1979 3003 1996 5620

1980 3237 1997 5825

1981 3535 1998 5920

1982 3825 1999 6060

1983 4066 2000 6221

1984 4146 2001 6342

1985 4195 2002 6538

2003 6698

Index for 2002 was averaged in 1202 using 11 months of data This number was forecasted

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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September 2003 1

Basis of Cost Estimates

1 PurposeIn the development of a Master Plan for wastewater conveyance and treatment thatextends 50 years into the future it is necessary to utilize a set of common assumptionsas to the capital cost of facility construction The cost assumptions provide the basisfor establishing the estimated annual expenditure in the capital improvement plan(CIP) that was developed as a component of the Detroit Wastewater Master Plan(WWMP)

The guidelines are intended to provide unit costs for construction and rehabilitationof conveyance and treatment facilities These unit costs can then be used to establishtotal costs of planning alternatives for comparative purposes Unit costs can also beapplied to recommended system upgrades improvements and rehabilitation projectsto develop total project costs for CIP development

While conveyance facilities are common elements of the DWSD system the treatmentfacilities being investigated are each somewhat unique in nature and thus not asreadily subjected to the application of generalized unit cost factors For this reason adifferent approach to cost development has been employed for treatment facilities

2 MethodologyDevelopment of component costs for a Master Plan covering the range of potentialproject types anticipated within the DWSD planning area over a 50-year time framerequired evaluation of historic costs as well as ldquoground uprdquo estimates These costscan be applied to proposed projects with varying site conditions and complexities

throughout the planning area

21 Wastewater Conveyance Facilities

To better account for a range of conditions if possible the unit costs were derivedfrom a convergence of two sources The cost estimates for wastewater conveyancefacilities are based on an assembly and comparison of historical construction costsfrom multiple cost estimates and reports compiled from 1971 to present andconstruction estimates using the RS Means Sitework and Landscaping Data andmethodology

Since in many cases the two methods produced differing results final unit costs

were established within the range of estimated costs through review by experienceddesign construction professionals Section B15 in Appendix B presents the historicalcost development Section B16 in Appendix B presents the Means method costdevelopment In some cases one of the two estimating methods was applicable forconveyance facilities

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 2

It was necessary to establish a time reference for historical data reviewed as part ofthe cost evaluation The year 2003 was selected as this reference point for the CIPdevelopment

The CIP developed for the Wastewater Master Plan (WWMP) used 2003 as the baseyear Section 2 contains the base data for the CIP estimates Cost data tables thatwere used for the CIP estimates are contained in Appendix A The 2000 costs fromthese tables were escalated to 2003 costs using the ENR Construction Cost Index (CCI)shown in Table 1

Both Means estimates and historical costs were calculated to use the year 2003 as abase Historical sources which are taken from the year in which they were reportedwere adjusted to 2003 unit costs using the ENR Construction Cost Index (CCI) Costsfor specific items were then averaged to determine the historical unit cost in year 2003dollars It should be noted that some projects with costs that were extremely high orlow compared to the others for the same type of facility were excluded from theaverage Some assumptions were made for the historical data due to a lack of detail

in the original estimates For example many of the pipe depths were assumed basedon size For sections where variable depths are shown the original estimate which isbased upon a shallower depth is multiplied by a factor to obtain a number for thedeeper depths

These factors were obtained from the RS Means estimates and then applied to thehistorical data Where historical costs were not available manufacturers estimateswere used

Section B16 in Appendix B shows the estimates based on RS Means costs for thesame material and the same assumed conditions as in the cost guidelines section The

RS Means numbers were taken from the 2002 Means data then converted to the year2000 using the suggested Means factors for year and location (Detroit) adjustmentFor example an item costing $23 in 2002 would be multiplied by the index in 2000(959) then divided by the index for 2002 (100) to obtain $2206 then adjusted for thelocation by multiplying by 962 the Means city cost index to give an adjusted 2000price of $2122 These 2000 values were then escalated to 2003 values for the unitcosts used in the CIP development

22 Wastewater Treatment Facilities

To address the treatment needs within the planning area over the 50-year planningperiod a series of treatment alternatives were developed by Tetra Tech MPS Theseranged from expansion of treatment capacity at the existing Detroit WWTP toutilization of existing outlying (satellite) facilities with upgrade and expansion inPontiac Warren andor Mt Clemens to construction of dedicated facilities to treatwet weather flow and the dewatered flows from CSO and SSO storage facilities Eachof these alternatives has been documented in technical memoranda specific to thealternative type

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 3

The three technical memoranda describing alternativesndash Expanded Facilities withinthe City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility- contain detailed descriptions ofthe proposed facilities and include as appendices the complete cost estimates foreach facility

As part of the alternatives development conceptual (planning level) cost estimateswere developed for the facilities being proposed These estimates would be based onspecific facility locations preliminary facility layouts and defined treatment processcapacities Because this additional detail is available more detailed estimates couldbe prepared than could be expected for conveyance facilities

These estimates used standard construction cost estimating procedures and formatsDesigners broke down facilities by each component process and prepared costestimates at the process level for the specific size and configuration appropriate foreach facility

Appendix C contains the treatment facility unit cost tables derived from thealternatives Any unit costs for conveyance items used in these alternative estimatessuch as pipes were used with other data in calculating the CIP costs

3 LimitationsEvery construction project presents unique conditions with respect to location siteconstraints and soil or geotechnical considerations Also construction industrymarket conditions can greatly affect project costing By considering both historicalcosts as well as current cost estimating methods an attempt was made to account forthe range of potential costs However no estimates can be considered final until

complete construction plans and specifications have been prepared At the MasterPlanning stage these unit costs as well project costs derived from them need to beevaluated appropriately Thus these generalized costs are appropriate forcomparison of alternative approaches to providing service but additional detailshould be provided for site-specific construction estimates

4 Allowances and ContingenciesAt every stage of construction cost estimating certain unknown factors need to beaccounted for in the development of estimated costs This is even true at the timefinal plans and specifications are completed for a specific project It is especiallycritical at the planning stage The unit costs presented throughout this technical

memorandum are base construction costs for the most part This means that in mostcases no allowances or contingencies of any type have been applied Contingenciesneed to be added to cost estimates prior to inclusion in the CIP

The following cost categories need to be considered in the development of completecost estimates Contractor Overhead and Profit Contingency and Engineering LegalAdministrative and Management

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 4

Contractor Overhead and Profit accounts for the markup that contractors employ tocover costs such as mobilization and the profit they would expect to garner from theproject

The Contingency markup has two main parts Planning Level Contingency andContractor Contingency The Planning Level Contingency accounts for theuncertainty of the cost estimate due to the basic level of design developmentappropriate at the planning level This contingency should decrease significantly aseach project proceeds from the Master Plan stage through the Project Plan stage thePreliminary Design Stage and the Final Design Stage For a Master Plan looking 50years into the future the contingency will be a considerable portion of the total costsThe contractor contingency allows for uncertainty in the final contract cost due tomarket conditions at the time the project is bid and for potential changes to theproject during the construction stage (change orders)

Engineering Legal Administrative and Management markups account for severalaspects of the projects These include providing funds for performing the engineering

design calculations preparing plans and specifications bidding the constructioncontract and awarding the work contractor oversight shop drawing review andapproval on site inspection services change order development development ofrecord drawings and contract close out They also account for the costs associatedwith legal review of construction contracts and when necessary the involvement offinancial professionals in preparation of bond statements and the sale of bonds

A review of contingencies used in other recent DWSD projects led to the use of thefollowing multipliers For new construction (replacement) or major rehabilitation themultipliers applied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 30 of total construction cost includingcontractor overhead and profit

Engineering Legal 20 of total construction cost includingAdministrative and Management contractor overhead and profit

For all other categories (inspection cleaning rehabilitation etc) the multipliersapplied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 15 of total construction cost includingcontractor overhead and profit

Engineering Legal 10 of total construction cost includingAdministrative and Management contractor overhead and profit

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 5

Most unit costs presented in this technical memorandum are basic construction costswithout contingencies The above contingencies needed to be added to the base costsas project specific estimates are developed The estimates that are based on actualcosts from past projects already include these contingencies

5 Cost IndexHistorical costs have been adjusted using data from the Engineering News Record(ENR) Construction Cost Index History which provides annual cost indices from1913 to present Table 1 shows the annual cost indices from 1969 to 2002Extrapolation of this data gives the annual indices for the year 2003

The cost estimates developed for the CIP used a 2003 cost The 2003 costs wereobtained by escalating any base data used from their base year to 2003 using the CCIUsing the example for a 1990 estimated cost for 12 sanitary line of $212 per linearfoot convert it to 2003 cost by dividing the unit price by the yearrsquos index (2124732)Then multiply by the year 2003 index (6698) to get the escalated 2003 unit cost of $300

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 6

Table 1ENR Construction Cost Index (CCI)

Year Index Year Index

1969 1269 1986 4295

1970 1381 1987 4406

1971 1581 1988 4519

1972 1753 1989 4615

1973 1895 1990 4732

1974 2020 1991 4835

1975 2212 1992 4985

1976 2401 1993 5210

1977 2576 1994 5408

1978 2776 1995 5471

1979 3003 1996 5620

1980 3237 1997 5825

1981 3535 1998 5920

1982 3825 1999 6060

1983 4066 2000 6221

1984 4146 2001 6342

1985 4195 2002 6538

2003 6698

Index for 2002 was averaged in 1202 using 11 months of data This number was forecasted

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 3567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 2

It was necessary to establish a time reference for historical data reviewed as part ofthe cost evaluation The year 2003 was selected as this reference point for the CIPdevelopment

The CIP developed for the Wastewater Master Plan (WWMP) used 2003 as the baseyear Section 2 contains the base data for the CIP estimates Cost data tables thatwere used for the CIP estimates are contained in Appendix A The 2000 costs fromthese tables were escalated to 2003 costs using the ENR Construction Cost Index (CCI)shown in Table 1

Both Means estimates and historical costs were calculated to use the year 2003 as abase Historical sources which are taken from the year in which they were reportedwere adjusted to 2003 unit costs using the ENR Construction Cost Index (CCI) Costsfor specific items were then averaged to determine the historical unit cost in year 2003dollars It should be noted that some projects with costs that were extremely high orlow compared to the others for the same type of facility were excluded from theaverage Some assumptions were made for the historical data due to a lack of detail

in the original estimates For example many of the pipe depths were assumed basedon size For sections where variable depths are shown the original estimate which isbased upon a shallower depth is multiplied by a factor to obtain a number for thedeeper depths

These factors were obtained from the RS Means estimates and then applied to thehistorical data Where historical costs were not available manufacturers estimateswere used

Section B16 in Appendix B shows the estimates based on RS Means costs for thesame material and the same assumed conditions as in the cost guidelines section The

RS Means numbers were taken from the 2002 Means data then converted to the year2000 using the suggested Means factors for year and location (Detroit) adjustmentFor example an item costing $23 in 2002 would be multiplied by the index in 2000(959) then divided by the index for 2002 (100) to obtain $2206 then adjusted for thelocation by multiplying by 962 the Means city cost index to give an adjusted 2000price of $2122 These 2000 values were then escalated to 2003 values for the unitcosts used in the CIP development

22 Wastewater Treatment Facilities

To address the treatment needs within the planning area over the 50-year planningperiod a series of treatment alternatives were developed by Tetra Tech MPS Theseranged from expansion of treatment capacity at the existing Detroit WWTP toutilization of existing outlying (satellite) facilities with upgrade and expansion inPontiac Warren andor Mt Clemens to construction of dedicated facilities to treatwet weather flow and the dewatered flows from CSO and SSO storage facilities Eachof these alternatives has been documented in technical memoranda specific to thealternative type

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 3

The three technical memoranda describing alternativesndash Expanded Facilities withinthe City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility- contain detailed descriptions ofthe proposed facilities and include as appendices the complete cost estimates foreach facility

As part of the alternatives development conceptual (planning level) cost estimateswere developed for the facilities being proposed These estimates would be based onspecific facility locations preliminary facility layouts and defined treatment processcapacities Because this additional detail is available more detailed estimates couldbe prepared than could be expected for conveyance facilities

These estimates used standard construction cost estimating procedures and formatsDesigners broke down facilities by each component process and prepared costestimates at the process level for the specific size and configuration appropriate foreach facility

Appendix C contains the treatment facility unit cost tables derived from thealternatives Any unit costs for conveyance items used in these alternative estimatessuch as pipes were used with other data in calculating the CIP costs

3 LimitationsEvery construction project presents unique conditions with respect to location siteconstraints and soil or geotechnical considerations Also construction industrymarket conditions can greatly affect project costing By considering both historicalcosts as well as current cost estimating methods an attempt was made to account forthe range of potential costs However no estimates can be considered final until

complete construction plans and specifications have been prepared At the MasterPlanning stage these unit costs as well project costs derived from them need to beevaluated appropriately Thus these generalized costs are appropriate forcomparison of alternative approaches to providing service but additional detailshould be provided for site-specific construction estimates

4 Allowances and ContingenciesAt every stage of construction cost estimating certain unknown factors need to beaccounted for in the development of estimated costs This is even true at the timefinal plans and specifications are completed for a specific project It is especiallycritical at the planning stage The unit costs presented throughout this technical

memorandum are base construction costs for the most part This means that in mostcases no allowances or contingencies of any type have been applied Contingenciesneed to be added to cost estimates prior to inclusion in the CIP

The following cost categories need to be considered in the development of completecost estimates Contractor Overhead and Profit Contingency and Engineering LegalAdministrative and Management

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 4

Contractor Overhead and Profit accounts for the markup that contractors employ tocover costs such as mobilization and the profit they would expect to garner from theproject

The Contingency markup has two main parts Planning Level Contingency andContractor Contingency The Planning Level Contingency accounts for theuncertainty of the cost estimate due to the basic level of design developmentappropriate at the planning level This contingency should decrease significantly aseach project proceeds from the Master Plan stage through the Project Plan stage thePreliminary Design Stage and the Final Design Stage For a Master Plan looking 50years into the future the contingency will be a considerable portion of the total costsThe contractor contingency allows for uncertainty in the final contract cost due tomarket conditions at the time the project is bid and for potential changes to theproject during the construction stage (change orders)

Engineering Legal Administrative and Management markups account for severalaspects of the projects These include providing funds for performing the engineering

design calculations preparing plans and specifications bidding the constructioncontract and awarding the work contractor oversight shop drawing review andapproval on site inspection services change order development development ofrecord drawings and contract close out They also account for the costs associatedwith legal review of construction contracts and when necessary the involvement offinancial professionals in preparation of bond statements and the sale of bonds

A review of contingencies used in other recent DWSD projects led to the use of thefollowing multipliers For new construction (replacement) or major rehabilitation themultipliers applied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 30 of total construction cost includingcontractor overhead and profit

Engineering Legal 20 of total construction cost includingAdministrative and Management contractor overhead and profit

For all other categories (inspection cleaning rehabilitation etc) the multipliersapplied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 15 of total construction cost includingcontractor overhead and profit

Engineering Legal 10 of total construction cost includingAdministrative and Management contractor overhead and profit

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 5

Most unit costs presented in this technical memorandum are basic construction costswithout contingencies The above contingencies needed to be added to the base costsas project specific estimates are developed The estimates that are based on actualcosts from past projects already include these contingencies

5 Cost IndexHistorical costs have been adjusted using data from the Engineering News Record(ENR) Construction Cost Index History which provides annual cost indices from1913 to present Table 1 shows the annual cost indices from 1969 to 2002Extrapolation of this data gives the annual indices for the year 2003

The cost estimates developed for the CIP used a 2003 cost The 2003 costs wereobtained by escalating any base data used from their base year to 2003 using the CCIUsing the example for a 1990 estimated cost for 12 sanitary line of $212 per linearfoot convert it to 2003 cost by dividing the unit price by the yearrsquos index (2124732)Then multiply by the year 2003 index (6698) to get the escalated 2003 unit cost of $300

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 6

Table 1ENR Construction Cost Index (CCI)

Year Index Year Index

1969 1269 1986 4295

1970 1381 1987 4406

1971 1581 1988 4519

1972 1753 1989 4615

1973 1895 1990 4732

1974 2020 1991 4835

1975 2212 1992 4985

1976 2401 1993 5210

1977 2576 1994 5408

1978 2776 1995 5471

1979 3003 1996 5620

1980 3237 1997 5825

1981 3535 1998 5920

1982 3825 1999 6060

1983 4066 2000 6221

1984 4146 2001 6342

1985 4195 2002 6538

2003 6698

Index for 2002 was averaged in 1202 using 11 months of data This number was forecasted

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 3

The three technical memoranda describing alternativesndash Expanded Facilities withinthe City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility- contain detailed descriptions ofthe proposed facilities and include as appendices the complete cost estimates foreach facility

As part of the alternatives development conceptual (planning level) cost estimateswere developed for the facilities being proposed These estimates would be based onspecific facility locations preliminary facility layouts and defined treatment processcapacities Because this additional detail is available more detailed estimates couldbe prepared than could be expected for conveyance facilities

These estimates used standard construction cost estimating procedures and formatsDesigners broke down facilities by each component process and prepared costestimates at the process level for the specific size and configuration appropriate foreach facility

Appendix C contains the treatment facility unit cost tables derived from thealternatives Any unit costs for conveyance items used in these alternative estimatessuch as pipes were used with other data in calculating the CIP costs

3 LimitationsEvery construction project presents unique conditions with respect to location siteconstraints and soil or geotechnical considerations Also construction industrymarket conditions can greatly affect project costing By considering both historicalcosts as well as current cost estimating methods an attempt was made to account forthe range of potential costs However no estimates can be considered final until

complete construction plans and specifications have been prepared At the MasterPlanning stage these unit costs as well project costs derived from them need to beevaluated appropriately Thus these generalized costs are appropriate forcomparison of alternative approaches to providing service but additional detailshould be provided for site-specific construction estimates

4 Allowances and ContingenciesAt every stage of construction cost estimating certain unknown factors need to beaccounted for in the development of estimated costs This is even true at the timefinal plans and specifications are completed for a specific project It is especiallycritical at the planning stage The unit costs presented throughout this technical

memorandum are base construction costs for the most part This means that in mostcases no allowances or contingencies of any type have been applied Contingenciesneed to be added to cost estimates prior to inclusion in the CIP

The following cost categories need to be considered in the development of completecost estimates Contractor Overhead and Profit Contingency and Engineering LegalAdministrative and Management

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 4

Contractor Overhead and Profit accounts for the markup that contractors employ tocover costs such as mobilization and the profit they would expect to garner from theproject

The Contingency markup has two main parts Planning Level Contingency andContractor Contingency The Planning Level Contingency accounts for theuncertainty of the cost estimate due to the basic level of design developmentappropriate at the planning level This contingency should decrease significantly aseach project proceeds from the Master Plan stage through the Project Plan stage thePreliminary Design Stage and the Final Design Stage For a Master Plan looking 50years into the future the contingency will be a considerable portion of the total costsThe contractor contingency allows for uncertainty in the final contract cost due tomarket conditions at the time the project is bid and for potential changes to theproject during the construction stage (change orders)

Engineering Legal Administrative and Management markups account for severalaspects of the projects These include providing funds for performing the engineering

design calculations preparing plans and specifications bidding the constructioncontract and awarding the work contractor oversight shop drawing review andapproval on site inspection services change order development development ofrecord drawings and contract close out They also account for the costs associatedwith legal review of construction contracts and when necessary the involvement offinancial professionals in preparation of bond statements and the sale of bonds

A review of contingencies used in other recent DWSD projects led to the use of thefollowing multipliers For new construction (replacement) or major rehabilitation themultipliers applied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 30 of total construction cost includingcontractor overhead and profit

Engineering Legal 20 of total construction cost includingAdministrative and Management contractor overhead and profit

For all other categories (inspection cleaning rehabilitation etc) the multipliersapplied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 15 of total construction cost includingcontractor overhead and profit

Engineering Legal 10 of total construction cost includingAdministrative and Management contractor overhead and profit

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 5

Most unit costs presented in this technical memorandum are basic construction costswithout contingencies The above contingencies needed to be added to the base costsas project specific estimates are developed The estimates that are based on actualcosts from past projects already include these contingencies

5 Cost IndexHistorical costs have been adjusted using data from the Engineering News Record(ENR) Construction Cost Index History which provides annual cost indices from1913 to present Table 1 shows the annual cost indices from 1969 to 2002Extrapolation of this data gives the annual indices for the year 2003

The cost estimates developed for the CIP used a 2003 cost The 2003 costs wereobtained by escalating any base data used from their base year to 2003 using the CCIUsing the example for a 1990 estimated cost for 12 sanitary line of $212 per linearfoot convert it to 2003 cost by dividing the unit price by the yearrsquos index (2124732)Then multiply by the year 2003 index (6698) to get the escalated 2003 unit cost of $300

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 6

Table 1ENR Construction Cost Index (CCI)

Year Index Year Index

1969 1269 1986 4295

1970 1381 1987 4406

1971 1581 1988 4519

1972 1753 1989 4615

1973 1895 1990 4732

1974 2020 1991 4835

1975 2212 1992 4985

1976 2401 1993 5210

1977 2576 1994 5408

1978 2776 1995 5471

1979 3003 1996 5620

1980 3237 1997 5825

1981 3535 1998 5920

1982 3825 1999 6060

1983 4066 2000 6221

1984 4146 2001 6342

1985 4195 2002 6538

2003 6698

Index for 2002 was averaged in 1202 using 11 months of data This number was forecasted

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 4

Contractor Overhead and Profit accounts for the markup that contractors employ tocover costs such as mobilization and the profit they would expect to garner from theproject

The Contingency markup has two main parts Planning Level Contingency andContractor Contingency The Planning Level Contingency accounts for theuncertainty of the cost estimate due to the basic level of design developmentappropriate at the planning level This contingency should decrease significantly aseach project proceeds from the Master Plan stage through the Project Plan stage thePreliminary Design Stage and the Final Design Stage For a Master Plan looking 50years into the future the contingency will be a considerable portion of the total costsThe contractor contingency allows for uncertainty in the final contract cost due tomarket conditions at the time the project is bid and for potential changes to theproject during the construction stage (change orders)

Engineering Legal Administrative and Management markups account for severalaspects of the projects These include providing funds for performing the engineering

design calculations preparing plans and specifications bidding the constructioncontract and awarding the work contractor oversight shop drawing review andapproval on site inspection services change order development development ofrecord drawings and contract close out They also account for the costs associatedwith legal review of construction contracts and when necessary the involvement offinancial professionals in preparation of bond statements and the sale of bonds

A review of contingencies used in other recent DWSD projects led to the use of thefollowing multipliers For new construction (replacement) or major rehabilitation themultipliers applied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 30 of total construction cost includingcontractor overhead and profit

Engineering Legal 20 of total construction cost includingAdministrative and Management contractor overhead and profit

For all other categories (inspection cleaning rehabilitation etc) the multipliersapplied are

Contractor Overhead and Profit 25 of base construction costs

Contingency 15 of total construction cost includingcontractor overhead and profit

Engineering Legal 10 of total construction cost includingAdministrative and Management contractor overhead and profit

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 5

Most unit costs presented in this technical memorandum are basic construction costswithout contingencies The above contingencies needed to be added to the base costsas project specific estimates are developed The estimates that are based on actualcosts from past projects already include these contingencies

5 Cost IndexHistorical costs have been adjusted using data from the Engineering News Record(ENR) Construction Cost Index History which provides annual cost indices from1913 to present Table 1 shows the annual cost indices from 1969 to 2002Extrapolation of this data gives the annual indices for the year 2003

The cost estimates developed for the CIP used a 2003 cost The 2003 costs wereobtained by escalating any base data used from their base year to 2003 using the CCIUsing the example for a 1990 estimated cost for 12 sanitary line of $212 per linearfoot convert it to 2003 cost by dividing the unit price by the yearrsquos index (2124732)Then multiply by the year 2003 index (6698) to get the escalated 2003 unit cost of $300

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 6

Table 1ENR Construction Cost Index (CCI)

Year Index Year Index

1969 1269 1986 4295

1970 1381 1987 4406

1971 1581 1988 4519

1972 1753 1989 4615

1973 1895 1990 4732

1974 2020 1991 4835

1975 2212 1992 4985

1976 2401 1993 5210

1977 2576 1994 5408

1978 2776 1995 5471

1979 3003 1996 5620

1980 3237 1997 5825

1981 3535 1998 5920

1982 3825 1999 6060

1983 4066 2000 6221

1984 4146 2001 6342

1985 4195 2002 6538

2003 6698

Index for 2002 was averaged in 1202 using 11 months of data This number was forecasted

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 5

Most unit costs presented in this technical memorandum are basic construction costswithout contingencies The above contingencies needed to be added to the base costsas project specific estimates are developed The estimates that are based on actualcosts from past projects already include these contingencies

5 Cost IndexHistorical costs have been adjusted using data from the Engineering News Record(ENR) Construction Cost Index History which provides annual cost indices from1913 to present Table 1 shows the annual cost indices from 1969 to 2002Extrapolation of this data gives the annual indices for the year 2003

The cost estimates developed for the CIP used a 2003 cost The 2003 costs wereobtained by escalating any base data used from their base year to 2003 using the CCIUsing the example for a 1990 estimated cost for 12 sanitary line of $212 per linearfoot convert it to 2003 cost by dividing the unit price by the yearrsquos index (2124732)Then multiply by the year 2003 index (6698) to get the escalated 2003 unit cost of $300

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 6

Table 1ENR Construction Cost Index (CCI)

Year Index Year Index

1969 1269 1986 4295

1970 1381 1987 4406

1971 1581 1988 4519

1972 1753 1989 4615

1973 1895 1990 4732

1974 2020 1991 4835

1975 2212 1992 4985

1976 2401 1993 5210

1977 2576 1994 5408

1978 2776 1995 5471

1979 3003 1996 5620

1980 3237 1997 5825

1981 3535 1998 5920

1982 3825 1999 6060

1983 4066 2000 6221

1984 4146 2001 6342

1985 4195 2002 6538

2003 6698

Index for 2002 was averaged in 1202 using 11 months of data This number was forecasted

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

7182019 Basis of Cost Estimates

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 6

Table 1ENR Construction Cost Index (CCI)

Year Index Year Index

1969 1269 1986 4295

1970 1381 1987 4406

1971 1581 1988 4519

1972 1753 1989 4615

1973 1895 1990 4732

1974 2020 1991 4835

1975 2212 1992 4985

1976 2401 1993 5210

1977 2576 1994 5408

1978 2776 1995 5471

1979 3003 1996 5620

1980 3237 1997 5825

1981 3535 1998 5920

1982 3825 1999 6060

1983 4066 2000 6221

1984 4146 2001 6342

1985 4195 2002 6538

2003 6698

Index for 2002 was averaged in 1202 using 11 months of data This number was forecasted

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 7

Cost Guideline SummariesThe following pages contain cost guidelines for those items included in the CIP andrate model including pipe installation special structures and manholes pumpstations pipe rehabilitation miscellaneous repair and pipeline inspection andcleaning The categories and layout correspond to the CIP cost estimating

spreadsheets

For each category the material and assumed construction conditions are identifiedThese include type and depth of excavation utility and pavement restorationanticipated and number of manholes or other structures included in the estimateAdditionally a useful life expectancy for the specific type of facility is provided foruse in CIP development

6 Program 1 Sewer Infrastructure ProgramThis section of the CIP development includes the inspection cleaning rehabilitation

and replacement of DWSD sewers

61 Subprogram No 1A Lateral and Connector Sewers ndashCleaning Sediment Disposal amp Condition AssessmentLateral and Connector sewers were defined previously in consultation with DWSDA lateral sewer collects flows from homes and businesses for discharge into trunksewers These sewers range in size from 6rdquo to 24rdquo in diameter with an average size of18rdquo A connector sewer is a pipe that carries the wastewater flow from a lateral sewerto a trunk sewer Connector sewers range from 24rdquo in diameter to a 4rsquo by 6rsquo eggshape with an average size of 30rdquo in diameter An assessment of DWSD sewers fromthe technical memorandum Lateral Sewers and Connection Sewers indicates that

there are 2258 miles of laterals and 559 miles of connector sewers in the DWSD sewersystem

611 Inspection

The CIP costs for inspection of lateral and connector sewers were developed with theassumption that this inspection would be accomplished through sewer televisingSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals

The actual CIP cost estimation was derived from the technical memorandum entitled

Physical Inspection of Lateral and Connector Sewers revised May 2003 whichdescribes a recent pilot project performed by Inland Waters Pollution Control Inc forDWSD Inspections occurred in June July and October of 2002 This projectinspected several DWSD sewers in the lateral and connector categories using TVinspection methods The selected sewers for these inspections included varying pipediameters as well as material types The average inspection costs from the pilotproject are used for the CIP Table A-1 in Appendix A shows an alternate costestimation for sewer inspections based on historical data These unit costs in Table A

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5267

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 8

do not include contingencies Note that the pilot project costs are within the rangesset in Table A

2003 Lateral and Connector Sewer Inspection Costs = $211 per linear foot ($11141 per mile)

612 Cleaning

Sewer Cleaning consists of preparatory cleaning (also called light cleaning) or heavycleaning utilizing a hydraulic sewer jetvacuum unit The estimate includesmobilization set up for jetvacuum truck and furnishing of all incidentals

The CIP costs for the cleaning of lateral and connector sewers were taken from thetechnical memorandum entitled Physical Inspection of Lateral and Connector Sewersrevised May 2003 which describes a recent pilot project performed by Inland WatersPollution Control Inc for DWSD Table A-2 in Appendix A shows an alternate costestimation for sewer cleaning based on historical data

The unit costs do not include contingencies

2003 Lateral and Connector Sewer Light Cleaning Costs = $325 per linear foot ($17160 permile)

2003 Lateral and Connector Sewer Heavy Cleaning Costs = $900 per linear foot ($47520 permile)

613 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unit

practices (washing sludgedown the sewers to the WWTP) Sludge removal shouldtherefore include a sampling station to test the sludge components If sludge testsindicate hazardous materials the sludge will need to be disposed of in an apporpiatelandfill The cost per truckload comes from CDM and assumes two tests one forPCBrsquos and one for mercury would be performed on each load

2003 Lateral and Connector Sewer Sediment Testing Costs = $200 per truck load (10 truckloads per mile)

62 Subprogram No 1B Interceptor and Trunk Sewer Cleaning

Disposal and Condition AssessmentInterceptor and trunk sewers are defined previously in the Interceptor and TrunkSewers technical memorandum A trunk sewer collects flows from lateral andconnector sewers for discharge into interceptor sewers These sewers are generallylarger than laterals ranging in size from 18rdquo to 10rsquo in diameter An interceptor seweris a large sewer that carries the wastewater flow from a number of trunk sewers to thewastewater treatment plant These sewers do not connect to any homes buildings or

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 3567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 3767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4167

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4867

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5167

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5267

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5367

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 9

catch basins Interceptor sewers are generally larger than trunk sewers (10rsquo or larger)An assessment of DWSD sewers indicated that there are 483 miles of trunk sewersand 83 miles of interceptors (39 miles serving Macomb County only) in the DWSDsewer system

621 Inspection

The CIP costs for inspection of interceptor and trunk sewers were developed with theassumption that inspection would be accomplished through sewer televising Othermethods such as diving may be more effective because of the larger sizes of pipesSewer televising consists of remote televising of sewers using robotically controlledcameras The estimate includes mobilization set up for camera entry and furnishingof all incidentals The estimate is unit cost per mile of pipe The CIP costs for theinspection of interceptor and trunk sewers were taken from Table A-1 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Inspection Costs = $431 per linear foot ($22747 per mile)

63 Subprogram No 1C Lateral amp Connector SewerImprovements

Costs for improvements to the lateral and connector sewers in the DWSD system werederived These improvements can include the rehabilitation of the existing sewers orthe construction of new sewers to replace existing sewers to enhance the sewer systemwhere there are deficiencies This memorandum only considers the rehabilitation oflateral and connector sewers

631 Rehabilitation - Lateral and Connector Relining

There are a few different methods of rehabilitating sewers that were considered for

lateral and connector sewers These include chemical grouting of joints slipliningand cured-in-place-pipe (CIPP) CIPP was the preferred method used for the CIPestimates

CIPP Lining

CIPP lining is considered to be major rehabilitation CIPP installation includes theinstallation of Cured-In-Place Pipe mobilization sewer preparation and furnishing ofall incidentals

The service life of CIPP Lining is 50 years The CIP cost estimation for lateral andconnector sewer rehabilitation was derived from the recent pilot project performed by

Inland Waters for DWSD This information is found in the technical memorandumentitled Physical Inspection of Lateral and Connector Sewers For this project CIPPwas installed for several lengths of laterals and connectors within the DWSD systemThese unit costs do not include contingencies

2003 Lateral Sewer CIPP Rehabilitation Costs = $12235 per linear foot ($646000 per mile)

2003 Connector Sewer CIPP Rehabilitation Costs = $22030 per linear foot ($1163184 permile)

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 10

Table A-3 in Appendix A shows an alternate cost estimation for CIPP Lining based onhistorical data

64 Subprogram No 1D Interceptor and Trunk SewerImprovementsCosts for improvements to the interceptor and trunk sewers in the DWSD systemwere derived These improvements include the rehabilitation of the existing sewersand the construction of new sewers to replace existing sewers or to enhance thesewer system where there are deficiencies

641 Rehabilitation ndash Structural Repairs

The rehabilitation of the larger interceptor and trunk sewers requires methodsdifferent than for lateral and connector sewers In addition to a CIPP relining specificstructural repairs can be accomplished because the sewers are large enough to be

entered As a result of recent inspections of some of the interceptors and trunk sewersin the DWSD system some structural repairs were identified These can be found inthe CS-1158 report called Long Term CSO Plan for the Detroit and Rouge Rivers 1996These inspections covered approximately 886400 linear feet or about 30 of thesystem with structural repair costs (mostly CIPP lining) estimated at $18000000

Table A-3 shows the CIPP lining cost estimation based on historical data This tablehowever only goes up to 48rdquo pipe while the pipes used in this structural repaircalculation range from 24rdquo to 177rdquo The unit cost below is an extrapolation of Table A-3 and does not include contingencies

2003 Interceptor and Trunk Sewer Structural Repair Costs = $1000 per linear foot

642 Cleaning

Sewer Cleaning of the interceptor and trunk sewers consists of heavy cleaningutilizing a hydraulic sewer jetvacuum unit The estimate includes mobilization setup for jetvacuum truck and furnishing of all incidentals The CIP costs for thecleaning of interceptor and trunk sewers were taken from Table A-2 which is basedon historical data This unit cost does not include contingencies

2003 Interceptor and Trunk Sewer Heavy Cleaning Costs = $1641 per linear foot

643 Sludge RemovalAn analysis of inspection reports on interceptor and trunk sewers by TYJT calculatedthat sludge removal and disposal for 30 of the system would cost approximately$1867043 These can be found in the CS-1158 report called Long Term CSO Plan forthe Detroit and Rouge Rivers 1996 This sludge removal is considered to be heavycleaning and uses the costs from the historical data in Table A-2

2003 Interceptor and Trunk Sewer Sludge Removal Costs = $1641 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 11

644 Sediment Testing

A concern regarding the pipes in the DWSD system is that the buildup of sludgecontains toxic materials such as PCBs or mercury This sludge should be removedand disposed of in a different manner than the current sewer jet vacuum unitpractices (washing sludge down the sewers to the WWTP) Sludge removal should

therefore include a sampling station to test the sludge components and disposal ofhazardous material in a landfill Sludge amounts were obtained from inspectionreports found in the CS-1158 report called Long Term CSO Plan for the Detroit andRouge Rivers 1996 The cost per truckload comes from CDM and assumes two testsone each for PCBs and mercury would be performed on each load

2003 Interceptor and Trunk Sewer Sediment Testing Costs $200 per truck load (10 cu yds)

645 New Relief Sewers

DWSD previously identified areas of the system where relief sewers were neededThese areas were defined in Status Report on Storm Relief Sewer Program by DWSD

issued July 1975 reissued July 1978 The Wastewater Master Plan (WWMP) team hasreviewed these relief sewers (Local Alternatives for SSO Control technicalmemorandum) and concluded that the following may be needed pending furthersystem inspections and cleaning

7 Mile Road Reliefo 7920 ft of 120rdquo at depth of 30rsquoo 13200 ft of 120rdquo at depth of 25rsquo

Fenkell Reliefo 7920 ft of 156rdquo at depth of 25rsquoo 13200 ft of 192rdquo at depth of 10rsquo

Schoolcraft Reliefo 10560 ft of 192rdquo at depth of 15rsquo

Hubbell Reliefo 10660 ft of 144rdquo at depth of 10rsquoo 7920 ft of 144rdquo at depth of 20rsquo

Joy Clark Reliefo 6833 ft of 192rdquo at depth of 25rsquoo 27216 ft of 192rdquo at depth of 15rsquoo 169 ft of 120rdquo at depth of 10rsquo

The cost of construction of relief sewers was estimated in 1978 and again in 1996 forthe CS-1158 Long Term CSO Control Plan for the Detroit and Rouge Rivers Volume3 1004 C1 Alternative Evaluations (Table C4 in Alternative 6) Table A-4 shows the1996 estimates as well as the 2003 costs derived by escalation using the CCI Thecosts from this table used for the new relief sewer cost are shown here

120rdquo at depth of 10rsquo Costs = $1289 per linear foot

120rdquo at depth of 25rsquo Costs = $1557 per linear foot

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 12

120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 3567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4167

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4867

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5267

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5367

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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120rdquo at depth of 30rsquo Costs = $1712 per linear foot

144rdquo at depth of 10rsquo Costs = $1389 per linear foot

144rdquo at depth of 20rsquo Costs = $1579 per linear foot

156rdquo at depth of 25rsquo Costs = $1938 per linear foot

192rdquo at depth of 10rsquo to 15rsquo Costs = $2399 per linear foot

192rdquo at depth of 25rsquo Costs = $2771 per linear foot

646 Future Modeling

The CIP cost estimation has included future modeling of the DWSD sewer systemThis modeling of data from the Segmented Facilities plan is scheduled to take placefrom 2008 to 2010 The estimate from CDM includes contingencies

2003 Future Modeling Costs = $100000

647 Oakwood Interceptor

A cost estimate was prepared for the installation of a new redundant sewer systemparallel to the Oakwood Interceptor section of the NW Interceptor This estimate wasperformed by Tetra Tech MPS and can be found in the CS-1314 technicalmemorandum entitled Conceptual Plan for Oakwood Northwest Interceptor revisedMay 2003 The estimate does not include contingencies

2003 Oakwood Redundant Interceptor Costs = $8700000

648 Macomb Meter Stop Gates

A project is proposed to install stop gates at meters CV-3 and MB-25 in MacombCounty The estimate from SDA and found in the technical memorandum entitledCapital Improvement Programs for Macomb County does not include contingencies

2003 Stop Gate Installation Costs = $1700000 each

649 North Gratiot Interceptor

This project will install the new North Gratiot Interceptor Sewer (NGIS) in MacombCounty The estimate from SDA and found in the technical memorandum entitled

Capital Improvement Program for Macomb County includes contingencies

2003 NGIS Installation Costs = $40000000

6410 Northwest Interceptor Improvements

This project includes improvements to the Northwest Interceptor Sewer (NWIS) from8 Mile Road to the WWTP This estimate was performed by Tetra Tech MPS and can

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 13

be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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September 2003 14

2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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be found in the technical memorandum entitled Conceptual Plan for OakwoodNorthwest Interceptor The estimate does not include contingencies

2003 10rsquo Diameter Lining Costs = $1000 per linear foot

2003 10rsquo Diameter Replacement Sewer Costs = $2500 per linear foot

65 Subprogram No 1E Manholes and Catch BasinImprovements

Inspection and repair of sewer structures in the DWSD system are required to ensurethe system operates efficiently Therefore the CIP estimated costs for the inspectionand repair of manholes and catch basins

651 Manhole Inspections

Manhole inspection consists of either topside inspection or full inspection Table A-5

in Appendix A shows the estimate in unit cost per manhole inspection based onhistorical data The CIP estimate for manhole inspections assumes 5 of themanholes in the system will undergo topside inspection every year This unit costdoes not include contingencies

2003 Manhole Inspection Costs = $52 per structure

652 Manhole Repairs

Manhole repairs can consist of

Manhole wrapping

External chemical grout Manhole shelf repair Manhole channel repair Pipe connection repair Raising replacing manhole frames

Each repair is separate The CIP estimate assumes that the quantity of manholesneeding the above categories of repairs varies with the amounts per inspection cycleas follows

5 need manhole wrapping 8 need external chemical grout 10 need manhole shelf repair 10 need manhole channel repair 10 need pipe connection repair 15 need raising replacing manhole frames

2003 Manhole Wrapping Costs = $215 per structure

2003 External Chemical Grouting Costs = $1938 per structure

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2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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2003 Manhole Shelf Repair Costs = $646 per structure

2003 Manhole Channel Repair Costs = $646 per structure

2003 Pipe Connection Repair Costs = $538 per structure

2003 Manhole Frame Replacement Repair Costs = $646 per structure

653 Manhole Replacement

Manhole installation (replacement) includes

Pre-cast reinforced concrete manholes risers and cones cast-in-place basesframes castings steps

Excavation and backfill of common earth Sheeting shoring bracing and dewatering Up to 6rdquo of bituminous pavement removal and replacement

And furnishing of all incidentals

Table A-6 in Appendix A shows the estimate in unit cost per vertical linear foot ofinstallation based on historical information This estimate for manhole replacementassumes that manholes are 4 in diameter and 15 deep and that 2 would need to bereplaced for each inspection cycle (20 years) This unit cost does not includecontingencies

2003 Manhole Replacement Costs = $6053 per manhole

654 Catch Basin Cleaning

The CIP cost estimations assume that all 200000 catch basins will be cleaned everycycle Table A-7 in Appendix A shows the cost per catch basin Catch basin cleaningincludes labor trucks and disposal This unit cost does not include contingencies

2003 Catch Basin Cleaning Costs = $59 per catch basin

655 Catch Basin Repair

The CIP cost estimation for catch basin repair assumes that the repairs will be pipeconnection repair and frame replacement as shown in Section 652 for manholesThese unit costs do not include contingencies

2003 Catch Basin Pipe Connection Repair Costs = $538 per catch basin

2003 Catch Basin Frame Replacement Costs = $646 per catch basin

66 Subprogram No 1F Regulators Outfalls Backwater GatesDiversion Dams and In-System Storage661 Outfall Flow Regulators Inspection

Outfall regulator inspection includes inspection and report writing

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

7182019 Basis of Cost Estimates

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 15

The cost estimate assumes that a five-person crew can dive and inspect two outfallregulators each day The cost per day for a five-person crew is $6000day as shownin an invoice for the installation of backwater gate sensors for the Baby Creek outfallIt should be noted that some outfall regulators might cost more to inspect than othersdepending on regulator accessibility and condition This unit cost does not includecontingencies

2003 Outfall Regulator Inspection Costs = $3000 per average outfall regulator

662 Outfall Flow Regulators Rehabilitation

Outfall regulator rehabilitation includes cleaning and inspection of the regulatorfloat and sump chamber removal of existing regulator gates and associatedcomponents removal of flap gates and sluice gates rehabilitation of regulator floatreplacement of access manhole frames and covers installation of new slide gates andflexible flap gates and temporary diversion of sewage flow

Regulator rehabilitation was performed under Contract PC-695 Regulator RemoteFlow Control Structures and Dam Rehabilitation This project rehabilitated 40 gatesfor a total cost of $7708000 The average cost of $192700 per gate is rounded to$200000 per gate This contract ended in 2000 so the cost is escalated to $218000using a CCI escalation factor of 1077 It should be noted that some outfall regulatorsmight cost more to rehabilitate than others depending on regulator accessibility andcondition This cost estimate includes any contingencies

2003 Outfall Regulator Rehabilitation Costs = $218000 per average outfall regulator

663 Outfall Flow Regulators Replacement

Outfall regulator replacement includes the mechanical work described in the outfallregulator rehabilitation work described above and additionally replacement of theconcrete regulator chamber

As noted above the cost for the mechanical equipment replacement is $218000 peroutfall regulator It is assumed that the regulator junction chamber replacement costswould be similar to the influent junction chamber construction costs for the St AubinScreening and Disinfection Facility Contract PC-731 The contractor has provided adetailed cost estimate which indicates that the construction cost for this junctionchamber would be $105000 An additional $10000 is added for destruction andremoval of the existing regulator chamber In summary the regulator replacementcosts are

Installation of mechanical components = $218000

Construction of new regulator chamber = $105000

Destructionremoval of existing regulator chamber = $10000

Total = $333000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 16

Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Although the mechanical components portion includes some contingencies the unitcost here does not include contingencies

2003 Outfall Regulator Replacement Costs = $333000 per average outfall regulator

664 Outfall Backwater Gate and Diversion Dam Inspection

Outfall inspection includes inspection and report writing Backwater gates anddiversion dams are inspected at the same time as outfalls and do not require anyadditional costs The cost estimate assumes that a five-person crew can dive andinspect two outfalls each day

The cost per day for a five-person crew is $6000day as shown in an invoice for theinstallation of backwater gate sensors for the Baby Creek outfall It should be notedthat some outfalls might cost more to inspect than others depending on outfall sizedepth number of conduits and condition This unit cost does not includecontingencies

2003 Outfall Inspection Costs = $3000 per average outfall

665 Outfall Rehabilitation

Outfall rehabilitation includes repair work at each outfall as needed

The cost estimate is based on outfall rehabilitation costs budgeted for the DWSDcontract DWS 849850 Inspection and In-place Rehabilitation of Outfalls The costfor this project is $15540000 for rehabilitation of twelve outfalls This results in anaverage cost of $1295000 per outfall The cost shown is an average amount for alloutfalls Outfall rehabilitation costs can vary widely because the work involvedcould range from nothing to significant structural repairs This unit cost does include

contingencies

2003 Outfall Rehabilitation Costs = $1295000 per average outfall

666 Outfall Replacement

Outfall replacement includes removal of the existing outfall and installation of a newoutfall from the junction chamber to the river

Outfall replacement costs are estimated based on the equivalent installation of a sewerline for the average size length and depth outfall The average outfall calculationsassume that outfalls with multiple barrels can be represented by a longer length of

single barrel outfall For example a double barrel outfall with a length of 15 ft can beconsidered a single barrel outfall with length 30 ft Similarly outfalls with box eggor arch shapes are converted to cylinders with equivalent diameters For example a10 ft x 10 ft box sewer is considered equivalent to an 113 ft diameter cylinder Theseconsiderations are used to calculate the average length and diameter for all outfallsThe average outfall is 85 ft in diameter and 1280 ft in length Outfall depth is notreadily available and is assumed to be 10 ft

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 17

The replacement cost for the average size and length outfall can then be calculatedbased on the cost of installation of a new sewer with these dimensions The costs forsewer installation as a function of size and depth are displayed in Table A-4 Thistable indicates that the replacement cost for an 85 ft diameter 1280 ft long and 10 ftdeep outfall would be about $12600000 It should be noted that outfall replacementcosts would vary significantly because of differences in size number of conduits anddepth below the surface This unit cost does not include contingencies

2003 Outfall Replacement Costs = $12619680 per average outfall

667 Backwater Gate Rehabilitation

Backwater gate rehabilitation includes cleaning leak repair repairreplacement ofrotted or deteriorated timber and repairreplacement of hardware

The estimated total cost for repair of twelve backwater gates under Contract CS-1158Long Term CSO Control Plan for the Detroit and Rouge Rivers (1996) is $182000This results in an average cost of $15200 per gate This cost is then multiplied by aCCI escalation factor resulting in an average 2003 cost of $18100 per gate This cost isthen rounded to $20000 for the estimate Actual backwater gate rehabilitation costswill vary considerably depending on the condition and accessibility of the gate Thisunit cost does include contingencies

2003 Backwater Gate Rehabilitation Costs = $20000 per average backwater gate

668 Backwater Gate Replacement

Backwater gate replacement includes replacement of the backwater gates andassociated stop logs

The cost for installation of two backwater gates and associated stop logs at the StAubin Screening and Disinfection Facility is $336000 according to the detailed costbreakdown for Contract PC-731 St Aubin Screening and Disinfection Facility It isassumed that removal of the existing gates and other site work would costapproximately $14000 This results in a total cost of $350000 for the installation oftwo gates at one location There are 154 gates at 54 locations or an average of 281gates per location It is assumed that the cost of gate replacement is proportional tothe total number of gates Hence the cost for replacing all of the gates would be

$350000 2 gates 154 gates all locations = $26460000

$26460000 54 locations = $490000 per location

This cost was then multiplied by a CCI escalation factor to obtain a 2003 average costof $517000 per location It should be noted that the cost at each location would varybased on the number and size of backwater gates and stop logs This unit cost doesnot include contingencies

2003 Backwater Gate Replacement Costs = $517000 per average backwater gate

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 18

669 Diversion Dam Rehabilitation

Diversion dam rehabilitation includes cleaning and repair of deteriorated damsurfaces restoration of connection between dam surface and bottom of flashboardsand repairreplacement of associated stop logs

The needed repairs are identified in the CS-1314 Review of Collection SystemRegulators and Outfalls technical memorandum revised May 2003 The cost fordiversion dam rehabilitation is based on simple cost estimates for a three man crewworking two days The average cost for diversion dam rehabilitation based on threelocations is $1000 per dam It should be noted that diversion dam rehabilitation costswill vary based on the size type and condition of the diversion dam This unit costdoes not include contingencies

2003 Diversion Dam Rehabilitation Costs = $1000 per average diversion dam

6610 Diversion Dam Replacement

Diversion dam replacement includes the installation of a new inflatable dam at theexisting location This cost also includes the cost of removing the existing diversiondam

The cost for diversion dam replacement is based on the detailed cost breakdown forContract PC-731 St Aubin Screening and Disinfection Facility The installation costfor an inflatable diversion dam according to this contract is $70000 This cost ismultiplied by a CCI escalation factor to get a 2003 installation cost of $74000 It isassumed that there is an additional cost of $10000 for destruction and removal of theexisting diversion dam and other site work The total cost for diversion damreplacement is $84000 per dam The cost of each diversion dam will vary based on

dam size and accessibility This unit cost does not include contingencies

2003 Diversion Dam Replacement Costs = $84000 per average diversion dam

6611 In-System Storage Devices amp System Gate Inspection

In-system storage device (ISSD) inspection includes inspection and report writingThe cost estimate assumes that a three-person crew can inspect one ISSD each dayThe cost for one three-person crew should be about $3000 This unit cost does notinclude contingencies

2003 ISSD Inspection Costs = $3000 per ISSD

6612 In-System Storage Devices amp System Gate Rehabilitation

ISSD rehabilitation includes removal of existing regulator gates and associatedcomponents removal of existing operating systems for the regulator gatesinstallation of new slide gates with self-enclosed hydraulic operating systemsinstallation of instrumentation and control systems for remote operation of the slidegates from the SCC

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 19

This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 20

The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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This type of work was performed under Contract PC-695 Regulator Remote FlowControl Structures and Dam Rehabilitation This project rehabilitated 40 gates for atotal cost of $7708000 The average cost of $192700 per gate was rounded to$200000 per gate This contract ended in 2000 so the cost was then escalated to$218000 using a construction cost escalation factor It should be noted that someISSDs cost more to rehabilitate than others depending on ISSD type accessibility andcondition This unit cost does include contingencies

2003 ISSD Rehabilitation Costs = $218000 per ISSD

6613 In-System Storage Devices amp System Gate Replacement

ISSD replacement includes removal of all existing ISSD mechanical electrical andinstrumentation components and replacement with new components

ISSD replacement costs are based on Contract PC-747 In-System Storage Under thiscontract thirteen new ISSDs were installed for a total cost of $26400000 This wouldresult in an average cost of $2030000 per ISSD It is assumed that this installationcost is comparable to the average ISSD replacement cost It should be noted that ISSDreplacement costs would vary depending on the size type and accessibility of thedevice This unit cost does include contingencies

2003 ISSD Replacement Costs = $2030000 per ISSD

67 Subprogram No 1G Pump Stations671 Inspections

Pump station inspection includes inspection of the structural condition of the stationand wet well (if equipped) pump testing and inspection of the instrumentation and

control devices

The pump station inspection costs are estimated to run about $1000 per pump fortesting based on a cost breakdown from Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management It was assumed that it would take anengineer about 25 weeks to inspect the pump station and write a report At $100 perhour this would cost $10000 per pump station This unit cost does not includecontingencies In summary pump station inspection costs include

Pump testing = $1000 per pump

Pump station inspection and report writing = $10000 per pump station

2003 Pump Station Inspection Costs = $10000 per pump station + $1000 per pump

672 Rehabilitation

Pump station rehabilitation includes pump and motor testing station cleaningpainting and repair repairreplacement of damaged pump motor control panelparts and minor pump station structural repairs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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The pump station rehabilitation costs can be estimated based on the total pumpstation rehabilitation costs estimated for Contract PC-744 Wastewater TreatmentPlant Rehabilitation and Program Management In the PC-744 report the total costfor immediate short-term and long term rehabilitation routine and long lead timespare parts CMMS system and motor repairreplacement was $7737500 It isassumed that this cost is representative of pump rehabilitation needs for each five-year interval This cost does not include contingencies

2003 Pump Station Rehabilitation Costs = $7737500 for rehabilitation of all pump stations

673 Major Rehabilitation

Major rehabilitation of pump stations includes the capital cost of renovating awastewater pump station including all pumps and related equipment

The cost for pump station major rehabilitation was estimated by CDM and for theTetra Tech MPS alternatives development (technical memoranda Expanded Facilitieswithin the City of Detroit Technical Feasibility of Satellite Treatment and TechnicalFeasibility of a Wet Weather Flow Treatment Facility) and is found in Table A-9aPump station major rehabilitation will vary considerably depending on pump stationand wet well condition number and capacity of pumps and instrumentation andcontrol requirements Table A-9b shows the breakdown of these costs into low orhigh flow categories The average flow of DWSD pump stations is more than 500MGD so the high flow cost is used for the CIP This unit cost does not includecontingencies

2003 Pump Station Major Rehabilitation Costs (500 + MGD)= $20000000 for the average pump station

674 Energy ManagementThe CIP estimates reflect the need for better energy management in terms of pumps atthe pump stations This is expected to be accomplished through the installation ofvariable-frequency drives (VFD) on these pumps The CIP includes VFD installationat the Clintondale and Woodmere Pump Stations The estimate based on thetechnical memorandum entitled Energy Management was made by TYJT and did notinclude contingencies The following estimate has had contingencies added

2003 Energy Management Costs (VFD installation at Clintondale and Woodmere) =$682500

68 Subprogram No 1H Meters681 Inspection and Maintenance

Flow meter maintenance includes maintenance repair and some replacement (mostlymechanical but some structural) of current meters billing and database managementand dye testingflow accuracy The costs shown are based on the maintenancebudget for CS-1249 Greater Detroit Regional Sewer System Model ndash Billing Meter

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

7182019 Basis of Cost Estimates

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 21

Program This project maintains 50 meters with an annual budget of $2000000 Thisunit cost does include contingencies

2003 Meter Maintenance Costs = $40000average meter

682 Replacement

Flow meter replacement includes meter equipment and installation costs as well asmeter vault replacement The CIP cost is based on a CDM estimate from the CS-1249Greater Detroit Regional Sewer System Model ndash Billing Meter Program and isrepresentative of the average meter Meter replacement costs may vary considerablydepending on the type and location of the meter This unit cost does not includecontingencies

2003 Meter Replacement Costs = $500000average meter

683 Macomb Odor Control

Some additional specific projects were included in the CIP estimation These involveodor control measures at 12 Macomb County meter chambers through the installationof carbon adsorption units The estimates are based on the CS-1292 Task Order Nos33 and 34 Final Draft Report that did not include contingencies The followingestimate has had contingencies added

2003 Macomb County Odor Control Costs = $772500

7 Program 2 CSO and SSO Control Program

71 Ongoing CIP Projects

The WWMP CIP estimation has identified several projects included in the current CIP

that have carry-over costs These rollover CIP costs are as shown in Table A-8 andinclude any contingencies

2003 Ongoing CIPRollover Costs = $617759000

72 New ProjectsThe WWMP CIP estimation has identified some new CSO projects These CIP costsare as shown below and include any contingencies The Detroit River CSO is basedon an estimate of $25000000 per outfall assuming the construction of a screening anddisinfection facility

Table 2 New CSO Project Costs

Project CIP Cost

Lower Rouge River Outfalls $25000000

Detroit River CSOs ndash Upper Range $750000000

Detroit River CSOs ndash Lower Range $375000000

Based on half as many outfalls constrd

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 22

73 CSO RehabilitationThe WWMP also considered the rehabilitation of the CSOrsquos in the DWSD system Theupper range estimate assumes that the rehabilitation costs would be approximately1 of the CSO construction costs The table below shows the construction and CIPrehabilitation costs without contingencies It is assumed that each facility will be

rehabilitated annually from 2008 to 2050 The lower range estimate assumes a yearlyrehabilitation cost

Table 3 Upper Range CSO Rehabilitation Costs

Facility Construction Cost RehabilitationCost (each)

Conner Creek CSO $199049172 $1990492

Fox Creek CSO $11582891 $ 115829Leib CSO $31327898 $ 313279

St Aubin CSO $21540250 $ 215403Upper Rouge CSO $418000000 $4180000

Baby Creek CSO $50389000 $ 503890

7 Mile CSO $17638861 $ 176389Fenkell CSO $22281777 $ 222818

Hubbell Southfield CSO $67975783 $ 679758

Belle Isle CSO $14960000 $ 149600

2003 Lower Range CSO Rehab Costs = $6000000 per year

8 Program 3 System Control and Wastewater Treatment

Program81 Wastewater Treatment Plant Ongoing and MajorRehabilitationThe DWSD Wastewater Treatment Plant (WWTP) is the largest facility in the DWSDsewer system An overall assessment of funding needed for the WastewaterTreatment Plant Program was first estimated for planning purposes by summarizingthe current yearly funding for wastewater treatment plant programs This data issummarized in Table 61 and additional information is presented in Table A11 inAppendix A

Table 4 shows that current proposed expenditures have increased from about $99million from the 1997-2002 CIP to $175 million in the 2002-07 CIP However thisamount includes many projects that are not directly related to the WastewaterTreatment Plant such as work at system pump stations Deleting these projects thetotal is closer to $134 million per year

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 23

Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 24

For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 26

Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Table 4 Summary of CIP Proposed Expenditures on the DWSD WastewaterTreatment Plant and System Control

CIP

Total Proposed WWTP CIP

Expenditures (over 5 years)

Yearly WWTP Expenditure

Average

(over 5 years)

20023 to 20067 $878M $175M

20023 to 20067 (deleting

non-WWTP projects)

$670M $134M

20012 to 20056 $973M $194M

19978 to 20012 $493M $99M

Source Sewage Disposal System Capital Improvement Program Descriptions Financial Planning Division

DWSD

Detroit Wastewater Partners the program managers for the PC-744 wastewater plant

upgrade reviewed this initial information in a meeting on January 31 2003Expenditures on renewal and replacement of wastewater treatment plant componentsare typically 3 of the value of the wastewater plant per year for large plants Anestimated value for the Detroit Wastewater Plant is about $5 billion Expenditures of3 of the plant value result in an estimate of $150 million per year as a reasonabletarget to maintain a functioning plant including replacement and upgrade oftreatment processes as technology improves This estimate is summarized in the firstcolumn in Table 5

Table 5 Summary of CIP Proposed Funding Estimates for the DWSDWastewater Treatment Plant and System Control

Original Estimate

Proposed WWTP CIP Yearly

Funding Requirements

(including Process

Improvements)

Revised Estimate from

DWP and DWSD Plant

Staff of Proposed WWTP

Yearly Funding

Requirements

Wastewater Treatment Plant -

Ongoing Renovation and Repairs

$80M $55-70M

Major Renovation of the Wastewater

Treatment Plant

$40M --

System Controls and RegionalOperations

$30M $15M

TOTAL $150M $70-85M

A successful ongoing program of repair and replacement at the WastewaterTreatment Plant cannot be conducted without periodic inspections and updates to theNeeds Assessment The cost of this program is estimated at $100 - 200000 ifconducted yearly If not completed yearly the cost would be higher

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For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Appendix A

Data Tables Used for CIP

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Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

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September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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For the 50-year Capital Improvements Program the estimate of $150M for theWastewater Treatment Plant and System Controls was used for assessing rateimpacts as it is a realistic (see Volume 5 Customer Service and Technical SupportProgram) Subsequently in July 2003 a more detailed review of facility needs for theWastewater Treatment Plant and System Controls by Detroit Wastewater Partnersand the Wastewater Treatment Plant staff resulted in a revised estimate shown in thesecond column in Table 5 Note that this estimate includes a much lower cost forongoing renovations to System Controls Also this estimate does not include majorrenovations that would change the treatment process

The Detroit Wastewater Partners estimate of yearly funding requirements was basedon an assessment of the anticipated life and replacement cost of assets at theWastewater Treatment Plant This estimate is summarized in Table D1 in AppendixD of this report Background data from this analysis is included in the spreadsheetslinked to Appendix D

Historical information summarizing expenditures on the plant over the last ten yearswas compared to the $150M estimate Figure 1 shows the magnitude of the dramaticincrease in project expenditures at the Wastewater Treatment Plant in the last fouryears to address the requirements of the Federal Court Upgrades were required totreatment units that were last renovated more than 20 years ago These upgrades didnot include totally new treatment technologies

While this level of expenditure is not expected to continue indefinitely the averagelevel of expenditures over the next fifty years may approach $150M if new treatmenttechnologies are required to replace the current system This would become

necessary if 1) permit limits or other regulatory requirements change or 2) if spaceconstraints and growth in the amount of wastewater treated made expansion of theplant necessary Even without these changes another major renovation of the plant islikely 20 years after the current renovation or in the decade 2020-2030 If onlyongoing replacement and repair of the Wastewater Plant and System Controls isrequired however the estimated CIP requirements for the Wastewater TreatmentPlant and System Controls may be considerably less

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 25

Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Appendix A

Data Tables Used for CIP

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Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Figure 1

Detroit Wastewater Treatment Plant

Capital Expenditures - 10 Years

$-

$50

$100

$150

$200

$250

1992-1993

1993-1994

1994-1995

1995-1996

1996-1997

1997-1998

1998-1999

1999-2000

2000-2001

2001-2002

Fiscal Year

M i l l i o n s

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Appendix A

Data Tables Used for CIP

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September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Appendix A

Data Tables Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 27

Appendix A ndash Data Tables Used for CIPThe April 2002 version of this technical memo contained several tables that were usedfor the actual CIP cost estimates for the WWMP These tables use 2000 costssometimes based on historical data escalated using the BCI instead of the CCI TheCIP estimates use 2003 data with CCI escalations This section contains these original

tables as well as the recalculated tables The sources listed in these tables are shownin table B-10 in section B15

Sewer Inspection Costs

The only number from Table A-1 used for the CIP estimation is the unit cost for the54-90rdquo category Table A-1 shows this data escalated using the CCI The averagesfrom the 2003 CCI category are used for the CIP

Table A-1Historical Sewer Inspection Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 - 24 $130 1982 $228 5

$125 2000 $135 15

$080 1988 $119 8

$150 2000 $162 21

Avg $161

27 - 48 $100 1999 $111 2

$225 1999 $249 11

$225 1996 $268 13

$200 2000 $215 21

Avg $211

54 - 90 $300 2000 $323 21

$500 2000 $538 21

Avg $431

Sewer Cleaning CostsAll 2000 data used for Table A-2 comes from historical sources from 1988 to 2000 Theaverages from the 2003 CCI category are used for the CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 28

Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Table A-2Historical Sewer Cleaning Costs

TaskSource Unit

CostLF Year2003 Unit

CostLF (CCI) Source

PrepCleaning $085 1988 $126 8

$125 2000 $135 15

$200 2000 $215 21

$300 2000 $323 21

$400 2000 $431 21

$500 2000 $538 21

Avg $295

HeavyCleaning $1750 1999 $1934 2

$1200 2000 $1292 20

$1500 2000 $1615 20

$1600 2000 $1723 20

Avg $1641

CIPP Lining CostsAll 2000 data used for Table A-3 comes from historical sources from 1988 to 2000 and

was escalated to 2000 using the BCI The averages from the 2003 CCI category areused for the CIP

Table A-3Historical CIPP Lining Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

8 $5800 1982 $10156 5

$6000 1982 $10507 5

$6500 1999 $7184 6

Avg $9282

10 $8000 1999 $8842 6

$8600 1988 $12747 8

Avg $10795

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

7182019 Basis of Cost Estimates

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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September 2003 29

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $6000 1982 $10507 5

$9500 1999 $10500 6

$12800 1988 $18972 8

$9400 1988 $13933 8

Avg $13478

15 $12800 1988 $18972 8

$10800 1988 $16008 8

Avg $17490

18 $12800 1988 $18972 8

Avg $18972

21 $10500 1982 $18387 5

$23000 2000 $24764 20

Avg $21575

24 $16300 1988 $24160 8

$27300 2000 $29393 20

Avg $26776

27 $30000 2000 $32300 20

Avg $32300

30 $36000 2000 $38760 20

Avg $38760

36 $44500 2000 $47912 20

Avg $47912

42 $53300 2000 $57387 20

Avg $57387

48 $62000 2000 $66754 20

Avg $66754

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Detr

September 2003

Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

7182019 Basis of Cost Estimates

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 3567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 3767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4167

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4867

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5167

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5267

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5367

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Table A-4New Relief Sewer Installation Costs

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

21 $174 $207 $226 $269 $281 $335 $341 $406 $395

24 $218 $260 $278 $331 $333 $397 $393 $468 $470

27 $262 $312 $330 $393 $385 $459 $445 $530 $503

30 $306 $365 $382 $455 $437 $521 $497 $592 $557

36 $350 $417 $434 $517 $489 $583 $549 $654 $611

42 $394 $470 $486 $579 $541 $645 $601 $716 $665

48 $438 $522 $538 $641 $593 $707 $653 $778 $719

54 $482 $574 $590 $703 $645 $769 $705 $840 $773

60 $530 $632 $641 $764 $698 $832 $755 $900 $830

66 $567 $676 $686 $818 $744 $887 $802 $956 $882

72 $604 $720 $731 $871 $790 $942 $849 $1012 $934

78 $641 $764 $776 $925 $836 $996 $896 $1068 $986

84 $678 $808 $821 $978 $882 $1051 $943 $1124 $1037

90 $715 $852 $866 $1032 $928 $1106 $990 $1180 $1089

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Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5267

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detr

September 2003

Cost of Sewers-in-Place per Linear Foot at Various Depth Ranges

D e p t h

0 ndash 10 Ft 10 ndash 15 Ft 15 ndash 20 Ft 20 ndash 25 Ft 25 ndash

Size 1996 2003 1996 2003 1996 2003 1996 2003 1996

96 $753 $897 $911 $1086 $974 $1161 $1037 $1236 $1140

102 $953 $1136 $1018 $1213 $1084 $1292 $1181

108 $995 $1186 $1063 $1267 $1131 $1348 $1222

114 $1037 $1236 $1107 $1319 $1178 $1404 $1263

120 $1081 $1288 $1153 $1374 $1225 $1460 $1306

132 $1123 $1338 $1197 $1427 $1272 $1516 $1372

144 $1165 $1388 $1245 $1484 $1325 $1579 $1439

156 $1407 $1677 $1497 $1784 $1626

168 $1590 $1895 $1692 $2017 $1837

180 $1797 $2142 $1912 $2279 $2076

192 $2013 $2399 $2141 $2552 $2325

204 $2254 $2686 $2398 $2858 $2604

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September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Appendix B

Data Tables Not Used for CIP

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Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 33

Table A-5Manhole Inspection Costs

Repair Type 2000 UnitCost

2003 UnitCost

TopsideInspection $50 $52

Full Inspection $150 $162

Manhole Replacement Costs

All 2000 data used for Table A-6 comes from historical sources from 1971 to 2000 andwas escalated to 2003 for the CIP

Table A-6Historical Manhole Replacement Costs

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

4 $12000 1985 $19160

$22500 1999 $24869

$16250 1999 $17961

$10000 1971 $42366

$18000 1999 $19895

$10400 1971 $44060

$10900 1971 $46178

$10300 1971 $43637$18750 1990 $26540

$12500 1990 $17693

$16250 1971 $68844

$17500 1971 $74140

$18700 1971 $79224

Avg $40351

5 $25000 1990 $35387

$18750 1990 $26540$18750 1999 $20724

$22000 1999 $24316

Avg $26742

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 34

SizeSource UnitCostVLF Year

2003 Unit CostVLF(CCI)

6 $29000 1999 $32053

$21250 1999 $23487

Avg $27770

7 $26000 1998 $29417

$35000 1998 $39600

$18750 1985 $29937

$25000 1985 $39917

$37000 1999 $40895

Avg $35953

8 $118750 1999 $131252

$95000 1996 $113222

Avg $122237

The manhole replacement for the CIP assumes the average manhole is 4 in diameterand 15 deep This calculates as follows Each manhole installation = $40351 X 15 =$605265

Table A-7Catch Basin Cleaning Costs

Item Quantity Unit Cost Total Per Year

Labor Cost 33 each $50 per hour $3432000 $3432000

Truck Cost 12 each $350000 $4200000 $420000

Disposal Cost 66667 each $1 $66667 $66667

Cost per Catch Basin $59

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 35

Table A-8CSO CIP Rollover Costs

Project Total Cost CIP RolloverCost

Upper Rouge River Complete CSO Facility $481000000 $362000000

City of Detroit Downspout Disconnects (current CIP runsthrough 2008 estimate for 2008 to 2050)

$208000000 $165000000

Oakwood Pump StationCSO Basin NA $86000000

LTCSO Program Management (current CIP runs through2008 estimate for 2008 to 2050)

NA $4759000

Pump Station Replacement Major RehabilitationPump Stations installation includes the capital cost of constructing a wastewaterpump station including all pumps and related equipment The CIP estimate does notreflect the replacement of any pump station as major rehabilitation is thought to be

adequate Tables A-9a shows the major rehabilitation estimate in unit cost x $1000per pump station dependent on the size of the station Table A-9b shows thebreakdown of these costs into low or high flow categories

Table A-9aPump Station Replacement Costs

Size 2000 Unit Cost 2003 Unit Cost

175 GPM

$65 $70

300 GPM

$65 $70

350 GPM

$65 $70

700 GPM

$85 $92

750 GPM

$90 $97

1250 GPM

$140 $151

1800 GPM

$190 $205

2400 GPM

$250 $269

4200 GPM

$395 $425

5700 GPM

$495 $533

18056 GPM $359

27778 GPM

$512

33333 GPM

$615

34722 GPM

$666

38889 GPM

$717

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 4567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5267

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5367

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 36

Size 2000 Unit Cost 2003 Unit Cost

49000 GPM

$1080 $2380

59722 GPM

$1127

66667 GPM $1229

78472 GPM

$1434

700000 GPM

$12000 $12920

Table A-9bPump Station Replacement Costs

Size 2003 Unit Cost

0 - 500 GPM $1567000

500 + GPM $20000000

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September 2003 37

Appendix B

Data Tables Not Used for CIP

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September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

7182019 Basis of Cost Estimates

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 37

Appendix B

Data Tables Not Used for CIP

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September 2003 38

Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Appendix B ndash Data Tables Not Used for CIPThe April 2002 version of this technical memo contained several tables that were notused for the actual CIP cost estimates for the WWMP The CIP either used differentdata sources or did not include the categories covered in these tables

B1 Alternate Data Category TablesB11 Chemical Grouting of JointsChemical Grouting of Joints consists of utilizing chemical products to eliminate leaksin pipe joints The estimate includes mobilization set up and furnishing of allincidentals The estimate is shown and is in unit cost per pipe joint All 2000 dataused for Table B-1 comes from historical sources from 1982 to 1999 and was escalatedto 2003 using the CCI

Table B-1Historical Chemical Grouting of Joints Costs

SizeSource UnitCostJoint Year

2003 Unit CostJoint(CCI) Source

Al l $6000 1985 $9580 1

$3500 1982 $6129 5

$2400 1988 $3557 8

$3500 1999 $3868 11

$3500 1996 $4171 13

Avg $5461

B12 SlipliningSliplining is considered to be a light rehabilitation method Sliplining installationincludes

Installation of HPDE Pipe into existing sewer pipe Excavation and backfill of insertion pits in common earth Annular space grouting Mobilization Sewer preparation And furnishing of all incidentals

The service life of Sliplining is 50 years Sizes are the ID of the Slipliner pipe forexample to reline a 20rdquo sewer use the cost for the 16rdquo Slipliner The estimate in TableB-2 is unit cost x $1000 per mile of installation

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5467

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 39

Table B-2Sliplining Costs

Size 2003 UnitCost Mile

4rdquo $20

6rdquo $50

8rdquo $90

10rdquo $130

12rdquo $190

14rdquo $230

16rdquo $290

18rdquo $370

20rdquo $460

22rdquo $56024rdquo $660

26rdquo $780

28rdquo $900

30rdquo $1040

32rdquo $1180

36rdquo $1490

42rdquo $2030

48rdquo $2650

52rdquo $3060

54rdquo $3360

B13 Sewer Pipe ReplacementIt has been determined that the improvements to the DWSD sewer system would notinclude the replacement of any sewer pipes However the costs for the constructionof new sewers were investigated The results of this investigation follow Note thatthe costs included in these tables (Table B-3 through B-13) are the recommended costsfrom Table 51-1

Ductile Iron Force Main

Ductile Iron Force Main installation includes

Cement lined ductile iron pipe (6-24) Excavation and backfill of common earth 3 ndash 35 feet of cover to crown of the pipe Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

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September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 40

Table B-3 shows the ductile iron force main installation estimate in unit cost x $1000per mile of pipe installation escalated using the CCI The service life of ductile ironforce mains is 30 years

Table B-3Historical New Ductile Iron Force Main Installation Costs

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

4 $1000 1985 $1597 1

$1500 1985 $2395 1

Avg $1996

6 $1600 1985 $2555 1

$1900 1985 $3034 1

$2700 2000 $2907 10

$1840 1971 $7795 14

$1600 1971 $6778 14

Avg $4614

8 $3000 2000 $3230 10

Avg $3230

10 $3300 2000 $3553 10

Avg $3553

12 $3700 2000 $3984 10

$1600 1971 $6778 14

$2800 1990 $3963 16

Avg $4909

14 $4100 2000 $4414 10

Avg $4414

16 $4500 2000 $4845 10

Avg $4845

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 41

Size

SourceUnitCostLF Year 2003 Unit CostLF (CCI) Source

18 $4200 1990 $5945 16

Avg $5945

20 $5300 2000 $5706 10

$4750 1971 $20124 14

Avg $12915

24 $6000 2000 $6460 10

Avg $6460

48 $10700 2000 $11520 10

Avg $11520

Service Leads Service Lead installation includes

6 SDR 35 PVC pipe and fittings Excavation and backfill of common earth Min 4rsquo cover to crown of the pipe Tie-in to existing sewer Reseeding

Furnishing of all incidentals

Table B-4 shows the estimate for service lead installation in unit cost per foot of pipewith the historical data escalated using the CCI The service life of service leads is 25years

Table B-4Historical New Service Lead Installation Costs

SizeSource unitCostLF Year

2003 Unit CostLF(CCI) Source

6 $1400 1971 $5931 14

$1560 1971 $6609 14

Avg $6270

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 42

Sanitary Laterals

Sanitary Lateral installation includes

Plain concrete pipe (8-12)

Excavation and backfill of common earth including trench shield or box 48rdquo diameter manholes at 300 feet Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement Furnishing of all incidentals

Table B-5 shows the estimate for sanitary laterals in unit cost x $1000 per mile of pipeinstallation with the historical data escalated using the CCI The service life ofsanitary laterals is 50 years

Table B-5

Historical New Sanitary Lateral Installation Costs

SizeSource UnitCostLF Year

2003 Unit CostLF(CCI) Source

8 $2250 1985 $3592 1

$3500 1999 $3868 6

$2900 1971 $12286 14

$2600 1971 $11015 14

$2540 1971 $10761 14

$3260 1971 $13811 14

$3500 1990 $4954 16

$3500 1990 $4954 19

Avg $7706

10 $2400 1985 $3832 1

$2500 1985 $3992 1

$4000 1999 $4421 6

$5600 2000 $6029 10

$3000 1971 $12710 14

$5700 1971 $24148 14

Avg $9189

12 $5500 1999 $6079 6

$4500 1990 $6370 16

Avg $6224

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 43

Storm and Combined LateralsStorm and combined lateral installation includes

Reinforced concrete pipe (12-24) Excavation and backfill of common earth Sheeting shoring and bracing Trench shield or box at 8rsquo 48rdquo Diameter manholes at 300 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Tables B-6 shows the estimates for storm and combined laterals in unit cost x $1000per mile of pipe installation at various depths with the historical data escalated usingthe CCI However the depth of installation is unknown The service life of storm andcombined laterals is 50 years

Table B-6Historical New Storm and Combined Lateral Installation Costs

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

12 $2500 1985 $3992 1

$3000 1985 $4790 1

$4500 1989 $6531 9

$6100 2000 $6568 10

$4350 1971 $18429 14

$3900 1971 $16523 14

$2700 1990 $3822 16

$4890 1971 $20717 14

$4500 1990 $6370 16

$4500 1990 $6370 19

$2700 1990 $3822 19

Avg $8161

15 $2750 1985 $4391 1$6700 2000 $7214 10

$4900 1971 $20759 14

$3375 1990 $4777 16

$5625 1990 $7962 16

$3375 1990 $4777 19

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 5767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 59

Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 44

SizeSource Unit

CostLF Year2003 Unit CostLF

(CCI) Source

15 $5625 1990 $7962 19

$3100 1999 $3426 11

Avg $6808

18 $3000 1985 $4790 1

$7300 2000 $7860 10

$3255 1990 $4607 16

$4050 1990 $5733 16

$4050 1990 $5733 19

$6750 1990 $9554 19

Avg $6379

21 $8000 2000 $8613 10

$5200 1971 $22030 14

$4800 1971 $20335 14

$4700 1971 $19912 14

$4725 1990 $6688 16

$4720 1990 $6681 19

Avg $14043

24 $8800 2000 $9475 10

$5400 1971 $22877 14

$5060 1971 $21437 14

$4430 1990 $6271 16

$5400 1990 $7644 19

$5400 1990 $7644 16

Avg $12558

Trunk SewersTrunk Sewer installation includes

Reinforced concrete pipe (27-66) Excavation and backfill of common earth Sheeting shoring and bracing Manholes at 300 feet Diameters as follows

o Pipe size 27rdquo ndash 36rdquo 60rdquo diameter manholes

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 45

o Pipe size 42rdquo- 48rdquo 72rdquo diameter manholeso Pipe size 54rdquo ndash 66rdquo 84rdquo diameter manholes

Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-7 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of trunk sewers is 50 years

Table B-7Historical New Trunk Sewer Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

27 $9600 2000 $10336 10

$5000 1971 $21183 14

Avg $15759

30 $10400 2000 $11197 10

$13500 1996 $16090 13

Avg $13643

36 $9300 1982 $16285 5

$27500 1998 $31114 3

$27500 1997 $31621 7$27000 1999 $29843 11

$14500 1996 $17281 13

Avg $25229

42 $29000 1997 $33346 7

$33000 1999 $36474 11

$13200 2000 $14212 10

Avg $28011

48 $30000 1997 $34496 7

$28500 1999 $31500 11

Avg $32998

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

54 $31000 1997 $35646 7

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 46

Avg $35646

60 $34000 1997 $39096 7

Avg $39096

66 $47000 1998 $53177 3

$50000 1998 $56571 3

Avg $54874

Interceptors TunnelsInterceptor tunnel installation includes

Reinforced concrete pipe (78-120) Excavation and backfill of common earth Sheeting shoring and bracing 8rsquo Diameter manholes at 600 feet Min bury to the crown of the pipe as listed below Minimum utility relocation Up to 6rdquo of bituminous pavement removal and replacement And furnishing of all incidentals

Table B-8 shows the estimates in unit cost x $1000 per mile of pipe installation atvarious depths with the historical data escalated using the CCI However the depthof installation is unknown The service life of interceptors tunnels is 50 years

Table B-8Historical New Interceptors Tunnels Installation Costs

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

78 $60000 1998 $67885 3

Avg $67885

84 $62000 1998 $70148 3

Avg $70148

96 $70000 1998 $79199 3

Avg $79199

Size Source Unit CostLF Year 2003 Unit CostLF (CCI) Source

102 $75000 1998 $84856 3

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 47

Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Avg $84856

108 80000 1998 $90514 3

Avg $90514

120 $90000 1985 $143700 1

Avg $143700

B14 Miscellaneous RepairsThis cost estimating technical memorandum reviewed the costs for various sewersystem repairs that were not scheduled or included in the WWMP CIP developmentThis section contains the results of this repair cost review

Sump Pump Disconnection

Sump Pump Disconnection consists of removal of sump valves electrical connectionsand restoration These costs in unit cost per connection are estimated at $6720 in2000 dollars

Root Control

Root Control consists of utilizing chemical methods The estimate includesmobilization set up and furnishing of all incidentals Table B-9 shows the estimate inunit cost per linear foot of pipe with the historical data escalated using the CCI

Table B-9Historical Root Control Costs

SizeSource Unit

CostLF Year 2003 Unit CostLF (CCI) Source

Al l $200 1982 $350 5

$200 1988 $296 8

$140 1989 $203 9

$200 2000 $215 20

$225 2000 $242 20

$275 2000 $296 20

Avg $267

B15 Historical ReferencesShown on each spreadsheet is a reference code to the source of individual unit pricesTable B-10 shows the references used for the historical estimates in Appendices A andB

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Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 48

Table B-10Historical References

Source Title Date

1 Unidentified CDM Documents 1985

2Beaconsfield Relief Sewer Cleaning Manholes Inspection forSouth Macomb Sanitary District 1999

3 SOCSDS Project Plan 1998

4 Cost Effective Analysis 1998

5 Grosse Pointe Infrastructure 1982

6 City of Rochester Hills SDA 1999

7 HRC Detailed Cost Estimates 1997

8 Beverly Hills Local Sewer Study Rehabilitation Program 1988

9 Unidentified CDM Documents 1989

10 Unidentified Construction Cost Estimate

11 South Macomb Sanitary District 1999

12 City of Rochester Hills Sanitary Sewer Evaluation Survey 1996

13 South Macomb Sanitary District Appendix J 1996

14 Clinton-Oakland Sewage Disposal System 1971

15 City of Hazel Park MI

16 Farmington MI Sewer Seperation Improvements 1990

17 Basic Requirements Report Evergreen-Farmington Relief 1985

18 Cost Estimate 1975

19 Pre-Rehabilitation Local Sewer Costs 1990

20 Ann Arbor SSO Prevention Task Force 2000

B16 Means and Manufacturersrsquo EstimatesThe calculation of construction costs using the RW Means methodology requiresprices for component materials and construction activities (ie excavation orbackfilling) The following table presents the component costs used in the

development of construction cost guidelines

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

7182019 Basis of Cost Estimates

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September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 49

Table B-11Component Costs for Means and Manufacturersrsquo Estimates

Item Size Description Unit Cost Units Source

Excavation

Excavation common earth hauling

away fill up to 4 mi $1549 CY Means

BackfillCommon earth front-end loaderCompaction 12 lifts $882 CY Means

Select FillCrushed bank run gravelcompaction 6 lifts $2650 CY Means

Sheeting 8 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $668 SF Means

16 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $876 SF Means

24 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1074 SF Means

32 DeepWood solid sheeting incl Walesbraces and spacers Drive amp Extract $1199 SF Means

Pavement Removal Bituminous 4 to 6 thick $572 SY Means

Saw Cutting Asphalt 6 thick $281 LF Means

Pavement Replacement Over Trench 6 thick $4333 SY Means

Non-Reinforced ConcretePipe 8 Bell and Spigot Joints Extra strength $1231 LF Means

10 Bell and Spigot Joints Extra strength $1305 LF Means

12 Bell and Spigot Joints Extra strength $1480 LF Means

Reinforced Concrete Pipe 12

Class 3 BampS or TampG Joints

wgaskets $1890 LF Means

15Class 3 BampS or TampG Jointswgaskets $2167 LF Means

18Class 3 BampS or TampG Jointswgaskets $2536 LF Means

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September 2003 50

Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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September 2003 54

Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 55

Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 58

Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Item Size Description Unit Cost Units Source

Reinforced Concrete Pipe 21Class 3 BampS or TampG Joints wogaskets $3135 LF Means

24Class 3 BampS or TampG Jointswgaskets $3504 LF Means

27Class 3 BampS or TampG Joints wogaskets $5302 LF Means

30Class 3 BampS or TampG Jointswgaskets $6592 LF Means

36Class 3 BampS or TampG Jointswgaskets $8990 LF Means

42

Class 3 BampS or TampG Joints wo

gaskets $9220 LF Means

48Class 3 BampS or TampG Jointswgaskets $13185 LF Means

54Class 3 BampS or TampG Jointswgaskets $14845 LF Means

60Class 3 BampS or TampG Joints wogaskets $16504 LF Means

66Class 3 BampS or TampG Joints wogaskets $23004 LF Means

72Class 3 BampS or TampG Jointswgaskets $29504 LF Means

78Class 3 BampS or TampG Joints wogaskets $32500 LF Means

84Class 3 BampS or TampG Joints wogaskets $35497 LF Means

96Class 3 BampS or TampG Jointswgaskets $43795 LF Means

102

Class 3 BampS or TampG Joints wo

gaskets $46000 LF Means

108Class 3 BampS or TampG Joints wogaskets $48300 LF Means

120Class 3 BampS or TampG Joints wogaskets $53000 LF Means

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September 2003 51

Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Item Size Description Unit Cost Units Source

Ductile Iron Pipe 4 Class 50 Cement Lined Mech Joint $1982 LF Means

6 Class 50 Cement Lined Mech Joint $2305 LF Means

8 Class 50 Cement Lined Mech Joint $2812 LF Means

10 Class 50 Cement Lined Mech Joint $3458 LF Means

12 Class 50 Cement Lined Mech Joint $4103 LF Means

14 Class 50 Cement Lined Mech Joint $4656 LF Means

16 Class 50 Cement Lined Mech Joint $5670 LF Means

18 Class 50 Cement Lined Mech Joint $6731 LF Means

20 Class 50 Cement Lined Mech Joint $7745 LF Means

24 Class 50 Cement Lined Mech Joint $9958 LF Means

48 Class 50 Cement Lined Mech Joint $23234 LF Est

PVC Pipe (SDR35) 6 SDR 35 BampS $512 LF Means

6 SDR 35 BampS 45 Degree Bend $7376 LF Means

HDPEPipe for Sliplining 4HDPE Pipe PE3408 DR21 (80 psi)price installed $442 LF Manufact

6HDPE Pipe PE3408 DR21 (80 psi)price installed $958 LF Manufact

8

HDPE Pipe PE3408 DR21 (80 psi)

price installed $1623 LF Manufact

10HDPE Pipe PE3408 DR21 (80 psi)price installed $2521 LF Manufact

12HDPE Pipe PE3408 DR21 (80 psi)price installed $3547 LF Manufact

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September 2003 52

Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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September 2003 53

Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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September 2003 56

Appendix C

Unit Costs for Treatment Facilities

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September 2003 57

Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Item Size Description Unit Cost Units Source

HDPEPipe for Sliplining 14HDPE Pipe PE3408 DR21 (80 psi)price installed $4276 LF Manufact

16HDPE Pipe PE3408 DR21 (80 psi)price installed $5586 LF Manufact

18HDPE Pipe PE3408 DR21 (80 psi)price installed $7069 LF Manufact

20HDPE Pipe PE3408 DR21 (80 psi)price installed $8728 LF Manufact

22HDPE Pipe PE3408 DR21 (80 psi)price installed $10560 LF Manufact

24

HDPE Pipe PE3408 DR21 (80 psi)

price installed $12567 LF Manufact

26HDPE Pipe PE3408 DR21 (80 psi)price installed $14749 LF Manufact

28HDPE Pipe PE3408 DR21 (80 psi)price installed $17106 LF Manufact

30HDPE Pipe PE3408 DR21 (80 psi)price installed $19637 LF Manufact

32HDPE Pipe PE3408 DR21 (80 psi)price installed $22342 LF Manufact

36HDPE Pipe PE3408 DR21 (80 psi)price installed $28277 LF Manufact

42HDPE Pipe PE3408 DR21 (80 psi)price installed $38488 LF Manufact

48HDPE Pipe PE3408 DR21 (80 psi)price installed $50270 LF Manufact

52HDPE Pipe PE3408 DR21 (80 psi)price installed $57869 LF Manufact

54

HDPE Pipe PE3408 DR21 (80 psi)

price installed $63623 LF Manufact

Manholes 4 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $17979 VLF Means

5 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $18809 VLF Means

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Item Size Description Unit Cost Units Source

Manholes 6 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $28582 VLF Means

7 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $38355 VLF Means

8 DiaPrecast Concrete not incl Excavbackfill frame cover sheeting $48128 VLF Means

B17 Meanrsquos Unit Cost Estimates

Table B-12 contains a sample estimating sheet for calculating each component costusing the material and labor costs identified in the previous section

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Table B-12Sample Component Costs Estimator

Quick Sewer Estimator

Force Mains

Dimensions

Pipe Size 14 in

Trench Width 4 Ft not less than 32

Trench Depth 6 Ft

Length 1 Ft

Material Costs

Pipe CostLF 66 $LF

Excav CostCY 13 $CYBackfill Cost CY 10 $CY

Select Fill CostCY 12 $CY

Pavament DemoCost SY 7 $SY

New Pavement Cost SY 29 $SY

Saw Cut Per LF 4 $LF

Sheeting Cost SF 0 $SF

May not be required for excavations under 5 deep

Pavement A (sy)= 044

Vexcav (cy) = Vbfill (cy) =

089 049

Hbfill (ft)

Sheeting (sf) Common Fill 333333

12

Vsfill (cy) =

036 Hsfill (ft)

Select Fill 266667

W (ft) = 4

Total Costs

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Pipe $6600

Excav $622

Backfill $494

Select Fill $427

Pavement Demo $311New Pavement $1289

Saw Cut $800

Sheeting Cost $000

Total Price $10543

Price Per Foot $10543 LF

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Appendix C

Unit Costs for Treatment Facilities

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Appendix C ndash Unit Costs for Treatment FacilitiesThe following tables outline the unit costs for treatment facilities derived from projectcost estimates These unit costs are provided for future estimating of these facilitiesand are the total cost X 1000 They are base construction costs only and do notinclude engineering fees allowances or contingencies

Table C-1Influent Pump Station Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

394 mgd $1960 $2320 $2820 $3320 $3820 $4320

400 mgd $3810 $4520 $5490 $6460 $7430 $8400

491 mgd $2060 $2440 $2970 $3490 $4010 $4530

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $2510 $2980 $3620 $4260 $4900 $5540

615 mgd $3050 $3620 $4400 $5180 $5960 $6740

619 mgd $3150 $3740 $4550 $5350 $6150 $6950

860 mgd $4440 $5270 $6410 $7540 $8670 $9800

1040 mgd $5940 $7040 $8560 $10070 $11580 $13090

1080 mgd $3790 $4490 $5460 $6420 $7380 $8340

1130 mgd $6090 $7220 $8780 $10330 $11880 $13420

1260 mgd $4510 $5350 $6500 $7650 $8800 $9940

1580 mgd $6020 $7140 $8680 $10210 $11740 $13270

1890 mgd $6350 $7530 $9150 $10770 $12390 $14000

2535 mgd $7030 $8340 $10140 $11930 $13720 $15500

3105 mgd $7030 $8340 $10140 $11930 $13720 $15500

Table C-2

Screening and Grit Chamber Unit Cost Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

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Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Table C-3 Aeration Bas in wi th Nit ri ficat ion Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $10400 $12330 $14990 $17640 $20290 $22930

140 mgd $11200 $13280 $16140 $18990 $21840 $24680

211 mgd $17300 $20520 $24940 $29350 $33760 $38150

211 mgd $17300 $20520 $24940 $29350 $33760 $38150211 mgd $16000 $18980 $23070 $27150 $31230 $35290

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

308 mgd $22600 $26800 $32570 $38320 $44080 $49810

359 mgd $24200 $28700 $34880 $41040 $47210 $53350

400 mgd $22600 $26800 $32570 $38320 $44080 $49810

450 mgd $32300 $38310 $46560 $54780 $63010 $71200

450 mgd $31800 $37710 $45830 $53930 $62040 $70110

540 mgd $35300 $41860 $50880 $59870 $68870 $77830

563 mgd $36800 $43640 $53040 $62410 $71790 $81130

622 mgd $39300 $46610 $56650 $66660 $76680 $86650

Table C-4Primary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

116 mgd $1530 $1810 $2200 $2590 $2980 $3370

143 mgd $2030 $2410 $2930 $3450 $3970 $4490

216 mgd $2210 $2620 $3180 $3740 $4300 $4860

221 mgd $3490 $4140 $5030 $5920 $6810 $7700

226 mgd $3490 $4140 $5030 $5920 $6810 $7700

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

322 mgd $4500 $5340 $6490 $7640 $8790 $9930

368 mgd $3240 $3840 $4670 $5490 $6320 $7140

409 mgd $3700 $4390 $5340 $6280 $7220 $8160

471 mgd $6190 $7340 $8920 $10500 $12080 $13650

471 mgd $5940 $7040 $8560 $10070 $11580 $13090

554 mgd $4520 $5360 $6510 $7660 $8810 $9960

576 mgd $5190 $6160 $7490 $8810 $10130 $11450

636 mgd $5600 $6640 $8070 $9500 $10930 $12350

1000 mgd $9770 $11590 $14090 $16580 $19070 $21550

1250 mgd $11300 $13400 $16290 $19170 $22050 $24920

Table C-5Complete Mix Activated Sludge Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $21800 $25850 $31420 $36970 $42530 $48060

125 mgd $25300 $30000 $36460 $42900 $49350 $55770

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

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Table C-6Iron Feed System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $152 $180 $220 $260 $300 $340

140 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340

211 mgd $152 $180 $220 $260 $300 $340211 mgd $152 $180 $220 $260 $300 $340

308 mgd $156 $190 $230 $270 $310 $350

308 mgd $156 $190 $230 $270 $310 $350

359 mgd $175 $210 $260 $310 $360 $410

400 mgd $164 $190 $230 $270 $310 $350

450 mgd $182 $220 $270 $320 $370 $420

450 mgd $182 $220 $270 $320 $370 $420

540 mgd $208 $250 $300 $350 $400 $450

563 mgd $189 $220 $270 $320 $370 $420

622 mgd $197 $230 $280 $330 $380 $430

1000 mgd $205 $240 $290 $340 $390 $440

1250 mgd $225 $270 $330 $390 $450 $510

Table C-7Coagulation-Flocculation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

100 mgd $19700 $23360 $28390 $33410 $38430 $43430

125 mgd $24100 $28580 $34740 $40880 $47020 $53130

Table C-8Secondary Clarifiers Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3050 $3620 $4400 $5180 $5960 $6740140 mgd $3800 $4510 $5480 $6450 $7420 $8380

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4430 $5250 $6380 $7510 $8640 $9760

211 mgd $4870 $5780 $7030 $8270 $9510 $10750

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

308 mgd $5800 $6880 $8360 $9840 $11320 $12790

359 mgd $7120 $8440 $10260 $12070 $13880 $15680

400 mgd $6280 $7450 $9050 $10650 $12250 $13840

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

450 mgd $8070 $9570 $11630 $13680 $15740 $17790

540 mgd $10400 $12330 $14990 $17640 $20290 $22930

563 mgd $11500 $13640 $16580 $19510 $22440 $25360

622 mgd $12400 $14710 $17880 $21040 $24200 $27350

1000 mgd $13700 $16250 $19750 $23240 $26730 $30210

1250 mgd $15200 $18030 $21910 $25780 $29650 $33510

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Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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September 2003 60

Table C-9Intermediate Pumping Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

253 mgd $734 $870 $1060 $1250 $1440 $1630

350 mgd $1060 $1260 $1530 $1800 $2070 $2340

400 mgd $1220 $1450 $1760 $2070 $2380 $2690

446 mgd $1380 $1640 $1990 $2340 $2690 $3040452 mgd $1410 $1670 $2030 $2390 $2750 $3110

529 mgd $1680 $1990 $2420 $2850 $3280 $3710

611 mgd $1680 $1990 $2420 $2850 $3280 $3710

669 mgd $1860 $2210 $2690 $3170 $3650 $4120

743 mgd $2090 $2480 $3010 $3540 $4070 $4600

849 mgd $2430 $2880 $3500 $4120 $4740 $5360

942 mgd $2470 $2930 $3560 $4190 $4820 $5450

1040 mgd $2770 $3290 $4000 $4710 $5420 $6120

1050 mgd $2810 $3330 $4050 $4770 $5490 $6200

1130 mgd $3040 $3610 $4390 $5170 $5950 $6720

Table C-10Filtration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $3930 $4660 $5660 $6660 $7660 $8660

140 mgd $5040 $5980 $7270 $8550 $9830 $11110

211 mgd $6210 $7360 $8950 $10530 $12110 $13680

211 mgd $6220 $7380 $8970 $10550 $12140 $13720

308 mgd $7900 $9370 $11390 $13400 $15410 $17410

359 mgd $8440 $10010 $12170 $14320 $16470 $18610

400 mgd $9190 $10900 $13250 $15590 $17930 $20260

450 mgd $10400 $12330 $14990 $17640 $20290 $22930

540 mgd $11800 $13990 $17000 $20000 $23010 $26000563 mgd $12200 $14470 $17590 $20700 $23810 $26910

622 mgd $13500 $16010 $19460 $22900 $26340 $29770

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September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

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September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 61

Table C-11Ultraviolet Disinfection Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

259 mgd $912 $1080 $1310 $1540 $1770 $2000

351 mgd $1280 $1520 $1850 $2180 $2510 $2840

400 mgd $1530 $1810 $2200 $2590 $2980 $3370

452 mgd $2040 $2420 $2940 $3460 $3980 $4500452 mgd $3310 $3930 $4780 $5620 $6460 $7300

452 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $1750 $2080 $2530 $2980 $3430 $3880

619 mgd $2280 $2700 $3280 $3860 $4440 $5020

679 mgd $2550 $3020 $3670 $4320 $4970 $5620

860 mgd $3830 $4540 $5520 $6500 $7480 $8450

860 mgd $3060 $3630 $4410 $5190 $5970 $6750

956 mgd $3400 $4030 $4900 $5770 $6640 $7500

1036 mgd $3830 $4540 $5520 $6500 $7480 $8450

1126 mgd $4100 $4860 $5910 $6950 $7990 $9030

1750 mgd $8270 $9810 $11920 $14030 $16140 $18240

2000 mgd $8620 $10220 $12420 $14610 $16810 $19000

Table C-12Post Aeration Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $114 $140 $170 $200 $230 $260

140 mgd $134 $160 $190 $220 $250 $280

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $142 $170 $210 $250 $290 $330

211 mgd $167 $200 $240 $280 $320 $360

308 mgd $182 $220 $270 $320 $370 $420308 mgd $182 $220 $270 $320 $370 $420

359 mgd $260 $310 $380 $450 $520 $590

400 mgd $273 $320 $390 $460 $530 $600

450 mgd $237 $280 $340 $400 $460 $520

450 mgd $237 $280 $340 $400 $460 $520

540 mgd $363 $430 $520 $610 $700 $790

563 mgd $358 $420 $510 $600 $690 $780

622 mgd $388 $460 $560 $660 $760 $860

1000 mgd $455 $540 $660 $780 $900 $1020

1250 mgd $554 $660 $800 $940 $1080 $1220

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 62

Table C-13Blower System Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

170 mgd $718 $850 $1030 $1210 $1390 $1570

210 mgd $786 $930 $1130 $1330 $1530 $1730

317 mgd $1120 $1330 $1620 $1910 $2200 $2490

317 mgd $1120 $1330 $1620 $1910 $2200 $2490317 mgd $1060 $1260 $1530 $1800 $2070 $2340

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

462 mgd $7440 $8820 $10720 $12610 $14510 $16400

539 mgd $7440 $8820 $10720 $12610 $14510 $16400

600 mgd $6430 $7630 $9270 $10910 $12550 $14180

675 mgd $8920 $10580 $12860 $15130 $17400 $19660

675 mgd $8840 $10480 $12740 $14990 $17240 $19480

810 mgd $8950 $10610 $12900 $15180 $17460 $19730

845 mgd $8600 $10200 $12400 $14590 $16780 $18960

933 mgd $8950 $10610 $12900 $15180 $17460 $19730

1500 mgd $6370 $7550 $9180 $10800 $12420 $14040

1875 mgd $7670 $9100 $11060 $13010 $14970 $16920

Table C-14Gravity Thickening Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $278 $330 $400 $470 $540 $610

140 mgd $319 $380 $460 $540 $620 $700

211 mgd $693 $820 $1000 $1180 $1360 $1540

211 mgd $555 $660 $800 $940 $1080 $1220

211 mgd $396 $470 $570 $670 $770 $870

308 mgd $708 $840 $1020 $1200 $1380 $1560308 mgd $723 $860 $1050 $1240 $1430 $1620

359 mgd $609 $720 $880 $1040 $1200 $1360

400 mgd $581 $690 $840 $990 $1140 $1290

450 mgd $927 $1100 $1340 $1580 $1820 $2060

450 mgd $944 $1120 $1360 $1600 $1840 $2080

540 mgd $830 $980 $1190 $1400 $1610 $1820

563 mgd $768 $910 $1110 $1310 $1510 $1710

622 mgd $830 $980 $1190 $1400 $1610 $1820

1000 mgd $723 $860 $1050 $1240 $1430 $1620

1250 mgd $845 $1000 $1220 $1440 $1660 $1880

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 63

Table C-15Centrifugation Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $2050 $2430 $2950 $3470 $3990 $4510

14 mgd $2440 $2890 $3510 $4130 $4750 $5370

211 mgd $2930 $3470 $4220 $4970 $5720 $6460

211 mgd $2220 $2630 $3200 $3770 $4340 $4900211 mgd $4160 $4930 $5990 $7050 $8110 $9160

308 mgd $2990 $3550 $4310 $5070 $5830 $6590

308 mgd $3040 $3610 $4390 $5170 $5950 $6720

359 mgd $6200 $7350 $8930 $10510 $12090 $13660

40 mgd $6150 $7290 $8860 $10430 $12000 $13560

45 mgd $4420 $5240 $6370 $7500 $8630 $9750

45 mgd $4500 $5340 $6490 $7640 $8790 $9930

54 mgd $9210 $10920 $13270 $15610 $17960 $20300

563 mgd $10700 $12690 $15420 $18140 $20870 $23580

622 mgd $11900 $14110 $17150 $20180 $23210 $26230

100 mgd $15000 $17790 $21620 $25440 $29260 $33060

125 mgd $17900 $21230 $25800 $30360 $34920 $39460

Table C-16Hauling and Landfilling Unit Cost

Capacity 2000 2010 2020 2030 2040 2050

113 mgd $438 $520 $630 $740 $850 $960

140 mgd $546 $650 $790 $930 $1070 $1210

211 mgd $1060 $1260 $1530 $1800 $2070 $2340

211 mgd $788 $930 $1130 $1330 $1530 $1730

211 mgd $810 $960 $1170 $1380 $1590 $1800

308 mgd $1090 $1290 $1570 $1850 $2130 $2410308 mgd $1100 $1300 $1580 $1860 $2140 $2420

359 mgd $1400 $1660 $2020 $2380 $2740 $3100

400 mgd $1370 $1620 $1970 $2320 $2670 $3020

450 mgd $1530 $1810 $2200 $2590 $2980 $3370

450 mgd $1560 $1850 $2250 $2650 $3050 $3450

540 mgd $2150 $2550 $3100 $3650 $4200 $4750

563 mgd $2030 $2410 $2930 $3450 $3970 $4490

622 mgd $2220 $2630 $3200 $3770 $4340 $4900

1000 mgd $2360 $2800 $3400 $4000 $4600 $5200

1250 mgd $2950 $3500 $4250 $5000 $5750 $6500

7182019 Basis of Cost Estimates

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Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6567

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 64

Appendix D

Wastewater Treatment Plant Ongoing Repair andReplacement Cost Estimates

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6667

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

September 2003 65

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Explanation of Capital Improvement Costs

NOTE This analysis was provided by the staff of the Detroit Wastewater Partners (DWSDProject PC-744 - Wastewater Treatment Plant Upgrade) and DWSD Wastewater Plant staff Itwas completed in July 2003

General

1 Capital costs are presented by major process and non-process areas The project costsassume a major capital improvement project for the specified life cycle based on recent capitalimprovements performed under PC-744 other recent capital improvement projects (ie PC-740 PC-720 etc) and best engineering judgment The line items listed in each area areintended to provide a basis for the cost estimate to give an understanding of the level of costestimate assumptions used and items includednot included in the cost estimate It is unlikelyand not intended that the major capital projects would include all of the items listed at thespecified cycle Rather it is more likely that the overall cost would be broken into smallerprojects spread across a ~10 year period at the specified cycle

2 The percentages listed below were applied to each of the base construction costs Theseare similar to the percentages used in the Wastewater Master Plan (see Master Plan TechnicalMemo Basis of Cost Estimates dated August 15 2003)

- 30 Contingency (for miscellaneous items not included in the general cost estimate)

- 25 Contractor Overhead and Profit and General Conditions

- 20 Engineering Legal Administration and Management

3 Capital costs presented assume continued use of the existing processes in place at the

WWTP It does not assume major changes to the treatment process such as a new form ofprimary treatment or biological treatment The costs also do not include potentially newprocesses that may be required for regulatory or other reasons such as filtration of thesecondary effluent sludge digestion or major change to the type of effluent disinfection

4 Capital costs presented for each process area do not include maintenance related costs forroutine maintenance between the major capital improvement cycles It is assumed thatmaintenance activities will be performed on the equipment at the required frequencies tomaintain the equipment in good worknig order between major rehabilitation or replacementprojects

Link to Complete Spreadsheets is found on the Wastewater Master Plan

CD DWP Est of Capital Improvements for WWTP - 50-yrxls

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107

7182019 Basis of Cost Estimates

httpslidepdfcomreaderfullbasis-of-cost-estimates 6767

Detroit Water and Sewerage DepartmentBasis of Cost Estimates

Table D1

SUMMARY OF CAPITAL IMPROVEMENT PROJECT COSTS

Area Life Cycle Start of Cycle 2003 Costs ($M)PROCESS RELATED

Pump Station No 1 20 2025 $ 63Pump Station No 2 20 2006 $ 66

Chemical Addition 20 2023 $ 9Rectangular Primary Clarifiers 20 2013 $ 86Circular Primary Clarifiers 20 2025 $ 84ILP Nos 1 2 3 4 7 20 2025 $ 29

Aeration Basins 20 2025 $ 55Cryo Plants 10 2015 $ 1Secondary Clarifiers 20 2020 $ 140SFE Pump Station 20 2010 $ 13

Chlorination 20 2022 $ 16

Dechlorination 20 2023 $ 12Hydraulic Structures 20 2020 $ 7Complex A and B 20 2025 $ 32

C-I Dewatering 15 2020 $ 31C-II Lower Level Dewatering 15 2019 $ 35C-II Upper Level Dewatering 15 2015 $ 42

C-I and C-II Incineration 15 2009 $ 139Sludge Offloading 20 2025 $ 19NON-PROCESS RELATED

AdminRagland Buildings 20 2025 $ 10Plant Security 10 2015 $ 10Plant-wide Paving 15 2020 $ 6Parking Structure 20 2025 $ 7Work Environment Improvements 10 2015 $ 5

Rehab of OampM Bldgs Warehouses 20 2007 $ 40Plant-wide Instrumentation 15 2020 $ 100General Electrical 20 2045 $ 29Plant-wide Secondary Water 15 2025 $ 6

Plant-wide Steam System 15 2023 $ 6Plant-wide Potable Water 15 2010 $ 2Plant -wide Drainage 15 2010 $ 2

Fire Protection Improvements 20 2006 $ 4Plant-Wide JOCs As-Needed Eng 1 2005 $ 3

Total $ 1107