westtown-thornbury elementary school new classroom addition

Westtown-Thornbury

Elementary School

New Classroom Addition

West Chester Area School District

29 April 2021

Project Number: 2531

Specifications

Volume 4 of 4

Divisions 31-33

Westtown-Thornbury Elementary School Addition For


2531.00 TABLE OF CONTENTS KKKKCCCCBA ArcBA ArcBA ArcBA Architectshitectshitectshitects

04/29/2021 000110 - 1

TABLE OF CONTENTS DIVISION 00 - PROCUREMENT REQUIREMENTS 00 0010 TABLE OF CONTENTS 00 1113 ADVERTISEMENT FOR BIDS 00 2113 INSTRUCTIONS TO BIDDERS 00 21BA A701-2018 INSTRUCTIONS TO BIDDERS 00 3100 AVAILABLE PROJECT INFORMATION 00 3100.1 FINAL GEOTECHNICAL REPORT 00 3100.2 STORMWATER PERC REPORT - HC 00 4100.01 BID FORM - STIPULATED SUM, GENERAL CONSTRUCTION 00 4100.02 BID FORM - STIPULATED SUM, MECHANICAL CONSTRUCTION 00 4100.03 BID FORM - STIPULATED SUM, PLUMBING CONSTRUCTION 00 4100.04 BID FORM - STIPULATED SUM, ELECTRICAL CONSTRUCTION 00 4313 BID SECURITY FORM 00 4513 BIDDER’S QUALIFICATION QUESTIONNAIRE 00 4519 NON-COLLUSIVE AFFIDAVIT 00 5200 AGREEMENT FORM 00 5200A AIA A101-2017 STANDARD FORM OF AGREEMENT BETWEEN OWNER AND

CONTRACTOR 00 6113.13 PERFORMANCE BOND 00 6113.16 PAYMENT BOND 00 7200 GENERAL CONDITIONS 00 7200A AIA A201-2017 GENERAL CONDITIONS 00 7343 WAGE RATE REQUIREMENTS 00 7343.1 PREVAILING WAGE RATE FORMS 00 7343.2 PREVAILING WAGE INSTRUCTIONS 00 7343.3 PREVAILING WAGE PROJECT RATES DIVISION 01 - GENERAL REQUIREMENTS 01 1100 SUMMARY OF WORK 01 1200 MULTIPLE CONTRACT SUMMARY 01 2300 ALTERNATES 01 2600 CONTRACT MODIFICATION PROCEDURES 01 2900 PAYMENT PROCEDURES 01 3113 PROJECT COORDINATION 01 3119 PROJECT MEETINGS 01 3216 CONSTRUCTION PROGRESS SCHEDULE 01 3300 SUBMITTAL PROCEDURES 01 4000 QUALITY REQUIREMENTS 01 4100 REGULATORY REQUIREMENTS 01 4100A ARREST OR CONVICTION FORM 01 4200 REFERENCES 01 5000 TEMPORARY FACILITIES AND CONTROLS 01 6000 PRODUCT REQUIREMENTS 01 7300 EXECUTION 01 7329 CUTTING AND PATCHING 01 7700 CLOSEOUT PROCEDURES 017900 DEMONSTRATION AND TRAINING




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DIVISION 02 - EXISTING CONDITIONS 02 4116 STRUCTURE DEMOLITION 02 4119 SELECTIVE STRUCTURE DEMOLITION DIVISION 03 - CONCRETE 03 3000 CAST-IN-PLACE CONCRETE DIVISION 04 - MASONRY

04 2000 UNIT MASONRY 04 7200 CAST STONE MASONRY DIVISION 05 - METALS 05 1200 STRUCTURAL STEEL FRAMING 05 2100 STEEL JOISTS 05 3100 STEEL DECK

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES 06 1000 ROUGH CARPENTRY DIVISION 07 - THERMAL AND MOISTURE PROTECTION 07 1326 SELF-ADHERING SHEET WATERPROOFING 07 2100 THERMAL INSULATION 07 5216 MODIFIED BITUMINOUS MEMBRANE ROOFING 07 7100 MANUFACTURED ROOF SPECIALTIES 07 9200 JOINT SEALANTS 07 9500 EXPANSION CONTROL DIVISION 08 - OPENINGS 08 1113 HOLLOW METAL DOORS AND FRAMES 08 1416 FLUSH WOOD DOORS 08 3113 ACCESS DOORS AND FRAMES 08 4113 ALUMINUM FRAMED ENTRANCES AND STOREFRONTS 08 5113 ALUMINUM WINDOWS 08 7100 DOOR HARDWARE 08 8000 GLAZING DIVISION 09 - FINISHES 09 2116 GYPSUM BOARD ASSEMBLIES 09 3000 TILING 09 5100 ACOUSTICAL CEILINGS 09 6500 RESILIENT FLOORING 09 9133 PAINTING AND COATINGS DIVISION 10- SPECIALTIES 10 1100 VISUAL DISPLAY SURFACES 10 2113 TOILET COMPARTMENTS 10 2813 TOILET ACCESSORIES 10 4400 FIRE PROTECTION SPECIALTIES




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DIVISION 11- EQUIPMENT (NOT USED)

DIVISION 12- FURNISHINGS 12 3216 MANUFACTURED LAMINATE-CLAD CASEWORK DIVISION 13 - 20 NOT USED DIVISION 21 - FIRE PROTECTION

21 0100 GENERAL PROVISIONS 21 0500 COMMON WORK RESULTS FOR FIRE SUPPRESSION 21 0553 IDENTIFICATING FOR FIRE SUPPRESSION PIPING AND EQUIPMENT 21 1300 FIRE SURPRESSION SPRINKLER SYSTEMS DIVISION 22- PLUMBING 22 0100 GENERAL PROVISIONS 22 0502 EXCAVATION, BACKFILL, COMPACTION FOR UTILTY TRENCHES 22 0516 EXPANSION FITTINGS AND LOOPS FOR PLUMBING PIPING 22 0519 METERS AND GAGES FOR PLUMBING PIPING 22 0553 IDENTIFICATION FOR PLUMBING PIPING AND EQUIPMENT 22 0719 PLUMBING PIPING INSULATION 22 1005 PLUMBING PIPING 22 1006 PLUMBING PIPING SPECIALTIES 22 0116 DOMESTIC WATER PITPING 22 4000 PLUMBING FIXTURES DIVISION 23- HEATING, VENTILATION AND AIR CONDITIONING 23 0501 GENERAL PROVISIONS 23 0513 COMMON MOTOR REQUIREMENTS FOR HVAC EQUIPMENT 23 0515 REMOVALS 23 0516 EXPANSION FITTINGS AND LOOPS FOR HVAC PIPING 23 0519 METERS AND GAGES FOR HVAC PIPING 23 0549 VIBRATION ISOLATION 23 0554 MECHANICAL IDENTIFICATION 23 0593 TESTING, ADJUSTING, AND BALANCING FOR HVAC 23 0714 HVAC DUCT INSULATION 23 0716 HVAC EQUIPMENT INSULATION 23 0719 HVAC PIPING INSULATION 23 0923 AUTOMATIC TEMPERATURE CONTROLS 23 0993 HVAC CONTROL SEQUENCE 23 2113 HYDRONIC PIPING 23 2114 HYDRONIC SPECIALTIES 23 2117 PIPE HANGERS, SUPPORTS AND ANCHORS 23 2500 HVAC WATER TREATMENT 23 3100 HVAC DUCTS AND CASINGS 23 3300 AIR DUCT ACCESSORIES 23 3423 HVAC POWER VENTILATORS 23 3700 AIR OUTLETS AND INLETS 23 8101 TERMINAL HEAT TRANSFER UNITS




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DIVISION 24 - NOT USED

DIVISION 25 - NOT USED DIVISION 26 – ELECTRICAL 26 0100 GENERAL REQUIREMENTS 26 0501 MINOR ELECTRICAL DEMOLITION 26 0519 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES 26 0526 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 26 0529 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS 26 0534 CONDUIT 26 0537 BOXES 26 0538 FIRESTOPPING 26 0553 IDENTIFICATION FOR ELECTRICAL SYSTEMS 26 0923 LIGHTING CONTROL DEVICES 26 2416 PANELBOARDS 26 2726 WIRING DEVICES 26 2813 FUSES 26 2818 ENCLOSED SWITCHES 26 5100 INTERIOR LIGHTING DIVISION 27 – COMMUNICATIONS 27 1005 STRUCTURED CABLING FOR VOICE AND DATA – OUTSIDE PLANT AND INSIDE

PLANT 27 5134 INTERCOM PA AND MASTER CLOCK DIVISION 28 – ELECTRONIC SAFETY AND SECURITY 28 1325 INTEGRATED PLATFORM ACCESS CONTROL 28 3100 FIRE ALARM AND DETECTION SYSTEM DIVISION 29 - NOT USED DIVISION 30 - NOT USED

DIVISION 31- EARTHWORK 31 0000 EARTHWORK 31 1100 CLEARING AND GRUBBING 31 2316 EXCAVATION FOR PAVEMENT 31 2333 TRENCH EXCAVATION FOR UTILITIES 31 2500 SOIL EROSION AND SEDIMENT CONTROL

DIVISION 32 - EXTERIOR IMPROVEMENTS 32 1216 ASPHALTIC CONCRETE PAVING 32 1313 CONCRETE PAVING 32 1613 CURB AND SIDEWALK 32 1723 PAVEMENT MARKINGS 32 9100 TOPSOIL 32 9200 LAWN AND GRASSES 32 9300 LANDSCAPE PLANTING




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DIVISION 33 - UTILITIES

33 4100 STORM SEWER SYSTEMS 33 4600 SUBDRAINAGE 33 7119 ELECTRICAL UNDERGROUND DUCTS AND MANHOLES

END OF SECTION 00 0110



2531.00 EARTHWORK KCBA Architects04/29/2021 SECTION 31 0000 - 1

SECTION 31 00 00 - EARTHWORK

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Cutting, proofrolling, filling and grading to required lines, dimensions, contours and elevations for proposed improvements.

B. Scarifying, compaction, moisture content control and, where deemed necessary, removal of unsuitable material to ensure proper preparation of areas for the proposed improvements.

C. Protection, modification, and/or installation of utilities as sitework progresses, paying particular attention to grade changes and any necessary staging of work.

1.02 RELATED SECTIONS AND DOCUMENTS

A. Section 31 25 00 - Soil Erosion and Sediment Control

B. Section 31 23 33 - Trench Excavation and Backfill for Utilities

C. Section 31 23 16 - Excavation, Backfill and Subgrade Preparation for Pavement

D. Section 32 12 16 - Asphaltic Concrete Paving

E. Section 32 16 13 - Curbs and Sidewalks

F. Westtown Township Requirements

G. Contract Drawings and Documents

1.03 REFERENCE STANDARDS

A. American Society for Testing and Materials (ASTM) - latest edition

D 422 Method for Particle Size Analysis of Soils D 1557 Test for Moisture-Density Relations of Soils Using 10-lb (4.5 Kg) Hammer

and 18-inch (457 mm) Drop (Modified Proctor) D 2216 Laboratory Determination of Moisture content of Soil D 2487 Classification of Soils for Engineering Purposes D 2922 Tests for Density of Soil and Soil- Aggregate in Place by Nuclear Methods

(Shallow Depth) D 3017 Test for Moisture Content of Soil and Soil-Aggregate in Place by Nuclear

Methods (Shallow Depth) D 4318 Test for Plastic Limit, Liquid Limit, and Plasticity Index of Soils

B. American Association of State Highway and Transportation Officials (AASHTO) - latest edition T 88 Mechanical Analysis of Soils

C. All applicable OSHA Regulations



KCBA Architects EARTHWORK 2531.00 SECTION 31 0000 - 2 04/29/2021

1.04 QUALITY ASSURANCE

A. The Contractor shall provide at least one supervisory person who shall be present at all times during execution of the work and who is thoroughly familiar with the type of work being performed and its best methods for completion. This person shall have the authority to act on behalf of the Contractor.

B. The Contractor shall comply with any provisions of all applicable codes, regulations and standards.

C. An Engineer familiar with the requirements of the Geotechnical Report, selected and paid by the Owner (herein referenced to as “Owner’s Engineer”), will be retained to perform construction inspection on site based on density testing, visual observation, and judgement. This inspection will not relieve the Contractor from his responsibility to complete the work in accordance with the Contract Documents.

D. Visual field confirmation and density testing of subgrade preparation and fill placement procedures shall be performed by the Owner’s Engineer (if hired by Owner) as part of the construction testing requirements.

E. The Owner’s Engineer shall prepare field reports that indicate compaction test location, elevation data, testing results and acceptability (if hired by owner). The Owner, Architect, and Contractor shall be provided with copies of reports within one week of the time the test was performed.

F. All costs related to reinspection due to failures shall be paid for by the Contractor at no additional expense to the Owner. The Owner reserves the right to direct any inspection that is deemed necessary. The Contractor shall provide free access to site and coordinate his construction activities to accommodate inspection activities.

1.05 SUBMITTALS

A. Within ten days after award of the contract, the Contractor shall submit to the Owner and Owner’s Engineer a schedule detailing the sequence, and time of completion of all phases of work under this section.

B. At least two weeks in advance of imported fill use, the Contractor shall submit either the following laboratory test data or a 50-pound soil sample to the Owner’ Engineer for each type of imported soil/gravel material to be used as compacted fill.

1. Moisture and Density Relationship: ASTM D1557. 2. Mechanical Analysis: AASHTO T-88 3. Plasticity Index: ASTM D 4318

C. Together with the above test data, the Contractor shall submit a 50 pound sample of each type of off-site fill material in an air tight container for the review of the Owner’s Engineer.

D. Submit the name of each material supplier and specific type and source of each material. Any change in source or soil type throughout the job requires review of the Owner and the Owner’s




Engineer.

1.06 ENVIRONMENTAL CONSIDERATIONS

A. Construct erosion control systems as shown on the Contract Documents or as directed by the Owner’s Engineer to protect adjacent properties and water resources from erosion and sediment damage.

B. Imported fill shall be free of all hazardous substances as established by Pennsylvania Department of Environmental Protection. Certification of compliance shall be furnished to the Owner and the Consultant by the Contractor no less than two weeks prior to its intended use. Under no circumstance shall fill material be brought on-site prior to the Engineer’s review of the certification of environmental compliance.

1.07 SUBSURFACE CONDITIONS

A. Perform work regardless of nature of subsurface materials encountered. Immediately notify the Architect upon discovery of unnatural subsurface conditions, underground storage tanks, contaminated soils, springs or seeps, buried debris, stumps, or rubbish.

B. All excavation is considered as “unclassified excavation” and shall consist of excavating and removing all formations and materials, natural or man-made, irrespective of nature or condition, encountered within the limits of the necessary areas of excavation.

Definitions to clarify types of subsurface material encountered:

Suitable Material is any earthen material consisting of on-site or similar non-organic sands, gravels, clays, silts and mixtures thereof with a maximum size of six inches (6”). Bedrock that breaks down to specified soil types and sizes during excavation hauling and placement may be considered as suitable material.

Unsuitable Material is any earthen material containing vegetable or organic silt, topsoil, trees, stumps, certain man-made deposits, or industrial waste, sludge or landfill, or other undesirable materials. This will apply to both “Subgrades” and “Backfills” as well.

Unstable Material is any earthern material containing excessively high moisture content that otherwise, after area drying, can meet the soil requirements established for filling and/or backfilling as suitable material. This will apply to both “Subgrades” and “Backfills” as well.

C. Where additional excavation is requested and approved by the owner, Rock is defined as any material that cannot be excavated with the ripper of a D-9R Caterpillar tractor (or equivalent with a minimum operating weight of 90,000 lbs.) without use of drilling or blasting. Boulders or masses of rock exceeding one and one-half cubic yards in volume shall also be considered rock excavation. This classification does not include loose rock, means other than drilling and blasting, and material removed by the Contractor using drilling and blasting for reasons of economy in excavating.

PART 2 PRODUCTS

2.01 MATERIALS




A. 3/4-inch clean stone or imported fill material approved by Owner’s Engineer and specified herein.

1. 2A Modified Stone or 2RC Imported fill for building pad to five (5) feet outside of building pad and parking areas

B. Topsoil fill as specified in Landscape Specification.

C. Soil Materials:

1. Fill soils shall consist of approved sandy/silty sand soils reused from on-site. Refer to Geotechnical Report describing the site sub-soils. The soils for reuse shall be free of rock or gravel larger than three (3) inches in any dimension; free of debris, waste, frozen materials, vegetation, and other deleterious matter.

2. Imported fill shall consist of well-graded inorganic soil containing less than 15% fines (passing the No. 200 sieve) and shall be free of wood, metal and the other deleterious materials. The material shall be free of all hazardous substances as established by Pennsylvania Department of Environmental Protection. Certification of compliance shall be furnished to the Owner and the Consultant by the Contractor no less than two weeks prior to its intended use. The Contractor shall notify the Consultant of the proposed borrow source and shall deliver a 100 lb sample to the Consultant at least one week prior to the use of the material to permit inspection and laboratory testing of the material to establish field density criteria. The borrow material shall have a water content during blending or placement such that adequate compaction as specified below can be obtained.

3. Unsuitable and deleterious materials and debris shall be disposed of off-site in accordance with all applicable regulations, at no cost to the Owner.

2.02 EQUIPMENT

A. Excavation is to be performed using capable, well maintained equipment and methods acceptable to the Owner and the Contract Document requirements and schedule.

B. Compaction shall be performed using a minimum 5-ton static drum weight, vibratory smooth drum roller or approved equivalent.

C. A smaller vibratory roller may be required for compaction of fill in areas that are inaccessible to the roller specified in Paragraph 2.02.B above. In such a case, 1.5-ton double walk behind roller shall be used.

PART 3 EXECUTION

3.01 PREPARATION

A. Prior to all work of this section, the Contractor shall become thoroughly familiar with the Geotechnical Report as well as the site, site conditions, and all portions of the work falling within this section.




B. The Contractor shall refer to the Contract Documents for staging of earthwork operations and for erosion control measures to be implemented prior to commencement of earthwork.

C. Locate and identify existing utilities that are to remain and protect them from damage.

D. Notify utility companies to allow removal and/or relocation of any utilities that are in conflict with the proposed improvements.

E. Protect adjacent properties from equipment and vehicular traffic.

F. Protect fences, structures, sidewalks, paving, curbs, etc. to remain from equipment and vehicular traffic.

G. Protect benchmarks, property corners and all other survey monuments from damage or displacement. If a marker needs to be removed/relocated it shall be referred by a licensed land surveyor and replaced, as necessary, by the same at no additional cost to the Owner.

H. Remove from the site, material encountered in grading operations that, in the opinion of the Owner’s Engineer, is unsuitable or undesirable for backfilling in subgrade or foundation areas as per these specifications. Dispose of unsuitable material off-site in an appropriate manner, satisfactory to Owner and in compliance with all governing agencies.

I. Contractor shall notify the Owner and Owner’s Engineer 72 hours prior to the start of any on-site earthwork.

3.02 GENERAL

A. Identify required lines, levels, contours and datum to bring site grades to the proposed subgrade conditions inferred from the drawings.

B. Do not allow or cause any of the work performed or installed to be covered by work of this section prior to all inspections, tests and approvals.

C. By submitting his bid, the Contractor represents that he has reviewed the information provided and investigated the site to determine type, quantity, quality, and character of excavation work to be performed.

D. Perform excavation using capable, well maintained equipment and methods acceptable to the Owner and governing agencies.

E. When performing grading operations during periods of prolonged wet or dry weather, provide adequate measures for surface drainage and ground water control, and moisture control of soils (i.e., wetting or drying by discing) so as to place and compact the soil within the moisture content range a few percentage points of its optimum water content. Any disturbed areas shall be proofrolled at the end of each day.

F. Shoring, bracing, and fencing shall be installed in accordance with Federal OSHA requirements as well as the requirements of all state and local authorities having jurisdiction. Shoring and bracing design, if required, shall be done by a Professional Engineer licensed in the Commonwealth of Pennsylvania, and shall be the sole responsibility of the Contractor. Such




designs shall be submitted to the Owner not less than one week prior to its intended use.

3.03 COMPACTION OF SUBGRADE SURFACES

A. Thoroughly compact the exposed ground surface following clearing and grubbing and any required excavation with a minimum of 6 passes of the above compactor and obtain at least 95% of the maximum density as determined by ASTM D1557, Modified Proctor Test. Areas of former test pits shall be staked out by the Contractor. After the locations are verified by the Owner’s Engineer, the Contractor shall compact these areas with a minimum of 10 passes.

B. Any soft areas exhibiting excessive weaving or unsatisfactory material identified during excavation, fill placement, compaction and proof-roll shall be removed, and compacted as specified in Section 3.03.A above. Backfilling of these areas shall be done in accordance with Section 3.04.

C. Prior to preparing the subgrade in low lying areas, perform the following procedures:

1. Drain standing water by gravity or with a pump. Water should not be discharged directly to a storm drain system.

2. After drainage of low area is complete, remove mulch, mud, debris, and other unsuitable material using equipment and methods that will minimize disturbance to the underlying soils.

3. Thoroughly compact subgrade as specified herein.

4. If proposed for fill, all mud and other materials removed from above low areas shall be dried on-site by spreading in thin layers for observation by Owner or Owner’s Engineer. Material shall be inspected and, if found to be suitable for use as fill material, shall be incorporated into lowest elevation of site filling operation, but not under the building area, within 25 feet of the perimeter of the building pad, or within 3 feet of the paving subgrade elevation. If, after observation by Owner or Owner’s Engineer, material is found to be unsuitable, it shall be removed from the site at no cost to the Owner.

3.04 BACKFILLING AND COMPACTION

A. No fill materials shall be placed during unfavorable weather conditions. When work is interrupted by heavy rains, fill operations shall not be resumed until all saturated surficial soils are returned to a satisfactory moisture content as determined by the Owner’s Geotechnical Engineer.

B. Place and compact approved fill materials in 12-inch maximum loose lifts using a minimum of 6 passes with the above 5-ton static drum weight compactor and obtain at least 95% of the maximum density as determined by ASTM D-1557. Smaller compaction equipment, together with 6-inch maximum lifts will be necessary for backfill behind walls and areas of limited maneuverability.

C. Visual confirmation of fill quality, lift thickness and compaction procedures, together with density testing, shall determine the acceptability of fill. Any unsatisfactory material or soft areas




exhibiting excessive weaving shall be immediately removed, replaced and recompacted as stated above to the satisfaction of the Owner’ Engineer.

D. No fill material shall be placed in areas of standing water, in areas of frozen or thawing ground, or over surfaces or lifts that have not been approved by the Owner’s Engineer.

3.05 MAINTENANCE OF SUBGRADE AND FILLS

A. Finished subgrades shall be verified by the Contractor to ensure proper elevation and conditions for construction above subgrade.

B. During earthwork operations, exposed areas shall be constructed or excavated in a manner that provides for surface drainage and prohibits ponding water. All fill areas shall be sealed at the end of each day using a smooth drum roller.

C. Protect subgrade from excessive construction traffic and wheel loading including concrete and dump trucks.

D. Remove areas of finished subgrade judged to be unsatisfactory to the depth necessary and replace in a manner that will comply with compaction requirements by use of material approved by the Owner’s Engineer. Surface of subgrade after compaction shall be hard, uniform, smooth, stable and true to grade and cross-section.

E. It is the Contractor’s responsibility to provide adequate dewatering of the site by means and methods approved by the Owner’s Engineer, if groundwater is encountered during the earthwork activities. The Contractor shall review the Geotechnical Report to obtain information regarding the depth of groundwater on-site.

3.06 FINISH ELEVATIONS AND LINES

A. For setting and establishing finish elevations and lines, secure the services of a licensed land surveyor acceptable to the Owner and Owner’s Engineer.

B. Provide elevation grade stakes and any other surveying necessary for the layout of the work. The Contractor shall conduct his work in such a manner that survey stakes will be protected as long as their need exists. Grade stakes which are damaged or stolen shall be replaced by the Contractor’s Surveyor at the Contractor’s expense.

C. Graded areas shall be uniform, hard and smooth, free from rock, debris, or irregular surface changes. Finished subgrade surface shall not be more than 0.10 feet above or below the design finished subgrade elevation; any deviation shall not result in changes in drainage areas or ponding. All ground surfaces shall vary uniformly between indicated elevations. Finish drainage ditches shall be graded to allow for proper drainage without ponding and in a manner that will minimize the potential for erosion.

D. Areas having drainage slopes of one-quarter inch per foot or more shall have grade stakes, set with an instrument, at grid intervals of 50-ft.

E. Areas having drainage slopes of one-quarter inch per foot or less shall have grade stakes, set




with an instrument, at grid intervals of 25-ft.

F. Correct all settlement and eroded areas for one year after date of project completion at no additional expense to Owner. Bring paved and landscaped areas to proper elevation. Replant or replace any grass, shrubs, bushes, or other vegetation disturbed by construction using corrective measures.

END OF SECTION 31 00 00



2531.00 CLEARING AND GRUBBING KCBA Architects04/29/2021 SECTION 31 1100 - 1

SECTION 31 11 00 - CLEARING AND GRUBBING

PART 1 GENERAL

1.1 SCOPE OF WORK

A. Clearing Site of debris, grass, trees, and other plant life in preparation for Site or building earthwork.

B. Protection of existing structures, trees, or vegetation indicated in contract documents to remain.

C. Removal of existing sidewalks, drives, curbs, etc.

D. Removal of asphalt pavement where indicated on contract documents and as specified herein.

E. Stripping topsoil, if necessary, from areas that are to be incorporated into limits of project.

F. Disposal of cleared, grubbed, and stripped materials in accordance with all applicable codes and ordinances.

G. Limit disturbance to areas illustrated on Contract Drawings


A. Section 31 25 00 – Soil Erosion and Sediment Control

B. Section 31 00 00 - Earthwork


A. The Pennsylvania Department of Environmental Protection’s (PADEP) Erosion and Sediment Pollution Control Program Manual, latest edition.

B. Chester County Conservation District’s (CCCD) Erosion and Sediment (E&S) permit.

1.4 ENVIRONMENTAL REQUIREMENTS

A. Construct temporary erosion control systems to protect adjacent properties and water resources from erosion and sedimentation.

B. Owner will obtain the National Pollutant Discharge Elimination System (NPDES) permit for stormwater discharges associated with construction activities from the PADEP and an E&S permit from CCCD.

C. Contractor shall be totally responsible for conducting soil erosion and sediment control and the storm water management practices in accordance with Owner’s E&S permit and for enforcement action taken or imposed by federal or state agencies, including cost of fines, construction delays, and remedial actions resulting from contractor's failure to comply with all provisions of the E&S permit.



KCBA Architects CLEARING AND GRUBBING 2531.00 SECTION 31 1100 - 2 04/29/2021

1.5 PROJECT CONDITIONS

A. Contractor to provide a thorough inspection of the site prior to bidding and accept the site as is.

B. Variations to conditions or discrepancy in actual or described as proposed conditions as they apply to site preparation operations are to be brought to the attention of the Owner prior to commencement of sitework.

PART 2 PRODUCTS

2.1 MATERIALS

A. Off-site materials shall be transported to project using well maintained and operating vehicles. Once on site, transporting vehicles shall stay on designated haul roads and shall at no time endanger improvements by rutting, overloading, or pumping.

PART 3 EXECUTION

3.1 PREPARATION

A. Verify existing plant life that is to remain and any clearing limits are clearly tagged, identified, and fenced in such manner as to insure their safety throughout construction operations.

3.2 PROTECTION

A. Locate and identify existing utilities that are to remain and protect from damage.

B. Protect trees, plant growth, wetlands and features not designated for removal.

C. Conduct operations with minimum interference to public or private accesses and facilities. Maintain ingress and egress at all times and clean or sweep roadways daily as required by the governing authority. Dust control shall be provided with sprinkling systems or equipment provided by contractor.

D. Protect benchmarks, property corners, and other survey monuments from damage or displacement. If marker needs to be removed it shall be referenced by a licensed land surveyor and replaced, as necessary, by same at contractor’s cost.

E. Provide traffic control as required, in accordance with the U.S. Department of Transportation's "Manual on Uniform Traffic Control Devices”, Pennsylvania Department of Transportation (PennDOT), local and county requirements.

3.3 CLEARING, GRUBBING AND STRIPPING

A. The Contractor shall clear areas required for execution of work.

B. Unless otherwise indicated on Construction Drawings, the contractor shall remove trees, shrubs, grass, other vegetation, improvements, or obstructions interfering with installation of new construction. Removal includes digging out stumps and roots. Depressions caused by clearing



2531.00 CLEARING AND GRUBBING KCBA Architects04/29/2021 SECTION 31 1100 - 3

and grubbing operations are to be filled to subgrade elevation to avoid collecting water to form ponds. Satisfactory fill material shall be placed in accordance with Section 31 00 00.

C. Remove grass, trees, plant life, stumps, and other construction debris from site to dump Site that is suitable for handling such material according to state laws and regulations.

3.4 TOPSOIL EXCAVATION

A. Satisfactory topsoil is reasonably free of subsoil, clay lumps, stones, weeds, roots, and other objectionable material.

B. Cut heavy growths of grass from areas before stripping and remove cuttings with remainder of cleared vegetative material.

C. Strip topsoil from areas that are to be filled, excavated, landscaped, or re-graded to such depth that it prevents intermingling with underlying subsoil or questionable material.

D. Stockpile topsoil in storage piles in areas acceptable to the Owner and landowner. Construct storage piles to freely drain surface water. Cover storage piles in compliance with the erosion and sedimentation control specifications to prevent windblown dust and waterborne erosion. Dispose of unsuitable topsoil as specified for waste material, unless otherwise specified by Owner. Excess topsoil shall be removed from site by Contractor unless specifically noted otherwise on Construction Drawings.

E. Stockpiled topsoil shall be reused as general fill in landscaped areas as permitted by Owner’s geotechnical engineer and as specified in specifications.

END OF SECTION – 31 11 00



2531.00 EXCAVATION & SUBGRADE PREPARATION FOR PAVEMENT KCBA Architects04/29/2021 SECTION 31 2316 - 1

SECTION 31 23 16 - EXCAVATION, BACKFILL & SUBGRADE PREPARATION FOR PAVEMENT

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Excavation and backfilling to line, grade and configuration as shown in the Contract Documents and as described in these specifications for proposed asphaltic concrete and Portland cement concrete pavement

B. Removal of unsuitable material beneath proposed paved areas.

C. Compacting fill materials in acceptable manner as specified herein.


A. Section 32 00 00 – General Requirements

B. Section 31 25 00 - Soil Erosion and Sediment Control

C. Section 31 00 00 – Earthwork

D. Section 32 12 16 – Asphaltic Concrete Paving

F. Section 32 13 13 – Portland Cement Concrete Paving

G. Section 32 16 13 – Curbs and Sidewalks

H. Contract Drawings and Documents


A. American Society for Testing and Materials (ASTM) - latest edition

D 422 Method for Particle Size Analysis of Soils D 1557 Test for Moisture-Density Relations of Soils Using 10-lb (4.5 Kg)

Hammer and 18-inch (457 mm) Drop (Modified Proctor) D 2216 Laboratory Determination of Moisture content of Soil D 2487 Classification of Soils for Engineering Purposes D 2922 Tests for Density of Soil and Soil- Aggregate in Place by Nuclear

Methods (Shallow Depth) D 3017 Test for Moisture Content of Soil and Soil-Aggregate in Place by

Nuclear Methods (Shallow Depth) D 4318 Test for Plastic Limit, Liquid Limit, and Plasticity Index of Soils

B. American Association of State Highway and Transportation Officials (AASHTO) - latest edition

T 88 Mechanical Analysis of Soils

C. All applicable OSHA Regulations



KCBA Architects EXCAVATION & SUBGRADE PREPARATION FOR PAVEMENT 2531.00 SECTION 31 2316 - 2 04/29/2021


A. An Engineer, familiar with the requirements of the Subsurface Investigation and Contract Documents, may be retained to perform construction testing on filling operations and subgrade preparation as specified in section 31 00 00 and described herein. This inspection will not relieve the Contractor from his responsibility to complete the work in accordance with the plans and specifications.

1.05 SUBMITTALS

A. Shop drawings or details pertaining to excavating and filling for structures are not required unless otherwise shown on Contract Document or if procedures contrary to the Contract Documents are proposed.

B. Submit 50-lb sample of each type of off-site fill material that is to be used in backfilling in air-tight containers to the Owner’s Engineer or submit gradation and certification of aggregate material that is to be used to the Owner’s Engineer for review at least one week prior to use on-site.

PART 2 PRODUCTS

2.01 MATERIALS

A. Fill material from on-site as specified in Section 31 00 00 of these Specifications and approved by the Owner’s Engineer.

B. Fill material from off-site as specified in Section 31 00 00 of these specifications and approved by the Owner’s Engineer.

2.02 EQUIPMENT

A. Off-site materials shall be transported to project using well maintained and operating vehicles. Once on-site, transporting vehicles shall at no time endanger improvements by rutting, overloading, or pumping.

B. Excavation is to be performed using capable, well maintained equipment and methods acceptable to the Owner and the Contract Document requirements and schedule.

C. Compaction shall be performed using a 5-ton static drum weight, vibratory, smooth drum roller or as specified in the Geotechnical Report.

D. Smaller compaction equipment, together with thinner lifts may be required at areas of limited access or maneuverability. In such a case, the compaction equipment shall be a double drum walk-behind roller and shall be subject to the Owner’s Engineer approval.




PART 3 EXECUTION

3.01 PREPARATION

A. Identify lines, elevations, and grades necessary to construct pavements, curb, sidewalk, and roadways as shown on Contract Documents.

B. Protect benchmarks, property corners, and other survey monuments from damage or displacement. If marker needs to be removed it shall be referenced by licensed land surveyor and replaced, as necessary, by same.

C. Locate and identify site utilities that have previously been installed and protect from damage.

D. Locate and identify existing utilities that are to remain and protect from damage.

E. Overexcavate and properly prepare areas of subgrade that are not capable of supporting proposed systems. These areas shall be stabilized by using aggregate material placed and compacted as specified.

3.02 EXCAVATION

A. Excavate roadways and pavement areas to line and grade as shown on the Contract Documents.

B. Areas of existing curb islands, sidewalks and existing pavement failure shall be excavated to competent soil to the satisfaction of the Owner’s Engineer. Excavation of soft soils will be required in both fill and overlay areas to the satisfaction of the Owner’s Engineer.

C. Perform excavation using capable, well maintained equipment and methods acceptable to Owner and local governing agencies.

D. Where existing grades are above proposed subgrade elevation, excavate materials in the pavement areas to the subgrade elevations necessary based on the finished pavement lines and grades as shown in the Contract Documents being careful not to overexcavate beyond the elevations needed. Replacement of fill in areas overexcavated by the Contractor without approval of the Owner’s Engineer shall be replaced as compacted fill in accordance with these Specifications at no additional cost to the Owner.

E. Excavated on-site soils that meet the requirements of Section 31 00 00 of these Specifications and approved by the Owner’s Engineer may be used as fill on-site.

F. Excavated on-site soils that are unsuitable for fill may be used in landscaped areas if approved by the Owner’s Engineer. Otherwise this material shall be legally disposed of off-site at no additional cost to the Owner.

G. Unsuitable material, such as wood and any other deleterious materials determined to be unsuitable by the Owner’s Engineer for use as on-site fill shall be legally disposed of off-site at no additional cost to the Owner.



KCBA Architects EXCAVATION & SUBGRADE PREPARATION FOR PAVEMENT 2531.00 SECTION 31 2316 - 4 04/29/2021

3.03 SUBGRADE PREPARATION

A. Existing grades below areas of proposed pavement shall be leveled prior to fill placement. The Contractor shall remove existing trees, roots, stumps, organic wetland soils, and top soil in these areas prior to placement of any fill and legally dispose of this material off-site at no additional cost to Owner.

B. The Contractor shall drain any standing or puddled water in low lying areas.

C. All existing grades below areas of proposed pavement shall be proofrolled and compacted with a minimum of 6 passes using the vibratory drum roller specified in part 2.02 of this Section prior to placement of pavement subbase. Existing areas which exhibit "pumping" or "rutting" under the action of the roller shall be removed and replaced with suitable fill material as specified in Section 31 00 00 of these Specifications, or as directed by the Owner’s Engineer.

D. Excavated on-site soils that are unsuitable for pavement subgrade below paved areas may be used in landscaped areas if approved by the Owner’s Engineer. Otherwise this material shall be legally disposed of off-site at no additional cost to the Owner.

E. Unsuitable material, such as wood and any other deleterious materials determined to be unsuitable by the Owner’s Engineer for use as on-site fill shall be legally disposed of off-site at no additional cost to the Owner.

3.04 SUBGRADE FILL PLACEMENT AND COMPACTION

A. Fill material shall not be placed in areas of standing water, in areas of frozen or thawing ground, or in areas that have not been approved by the Owner’s Engineer.

B. Fill materials shall not be placed during unfavorable weather conditions. When work is interrupted by heavy rains, fill operations shall not be resumed until all saturated surficial soils are returned to a satisfactory moisture content as determined by the Owner’s Engineer.

C. Maintain optimum moisture content of fill materials as specified herein to attain required compaction density.

D. Materials shall be tested in accordance with Section 31 00 00.

E. If compaction requirements are not complied with at any time during construction process, remove and recompact deficient areas until proper compaction is obtained at no additional expense to Owner.

F. Fill lift surfaces shall be made smooth and free from ruts or indentations at the end of any work day when significant precipitation is forecast to prevent saturation of surficial fill material. Fill surfaces shall be graded to drain and sealed with a smooth drum roller at the completion of each work day.

G. Subgrade fill in paved areas shall be placed in uniform loose lifts and compacted in accordance with the Specifications.




H. Wet, saturated material shall be removed and replaced or scarified and air dried as necessary to achieve the field densities specified in this Section. Drying may be assisted by discing, harrowing, or pulverizing until moisture content is reduced.

I. Prior to paving, the subgrade shall be proofrolled with a minimum of 6 overlapping coverages using a 5-ton static drum weight vibratory roller.

J. Remove areas of finished subgrade found to have insufficient compaction density of depth necessary and replace with suitable compacted fill as approved by the Owner or Owner’s Engineer. Surface of subgrade after compaction shall be hard, uniform, smooth, stable, and true to grade and cross-section.

3.05 MAINTENANCE OF APPROVE SUBGRADE SURFACES

A. Finished subgrades shall be verified to ensure proper elevation and conditions for construction above subgrade.

B. Protect subgrade from excessive wheel loading during construction including concrete trucks, dump trucks, and other construction equipment.

C. Remove areas of finished subgrade found to have insufficient compaction density to depth necessary and replace in manner that will comply with compaction requirements by use of material that has been approved by the Owner’s Engineer. Surface of subgrade after compaction shall be hard, uniform, smooth, stable, and true to grade and cross-section.

3.06 FINISH GRADING

A. Finish grading shall be in accordance with Section 31 00 00.

3.07 QUALITY CONTROL

A. Compaction tests shall be performed by the Owner’s Engineer as specified in Section 31 00 00 together with the following for areas of proposed pavement:

1. In cut areas, not less than one compaction test for every 15,000 square feet. 2. In fill areas, one test for every 15,000 square feet for each lift.

B. Prior to paving, the finished subgrades shall be verified by the Contractor to ensure proper elevation and conditions for construction above subgrade.

C. Tolerances of 0.10 feet will be permitted. Any deviation from the design grades shall not result in changes in drainage areas or ponding. The Contractor shall provide engineering and field staking necessary for verification of lines, grades, and elevations.




2531.00 TRENCH EXCAVATION AND BACKFILL FOR UTILITIES KCBA Architects04/29/2021 SECTION 31 2333 - 1

SECTION 31 2333 - TRENCH EXCAVATION AND BACKFILL FOR UTILITIES

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Excavating trenches for the installation of utilities.

B. Backfilling trench with bedding material as specified and finish filling trenches with suitable material to proposed subgrade.

C. Compacting subgrade, bedding, and backfill materials in an acceptable manner.

D. Compliance with all environmental and health and safety regulations.


A. Section 334100 – Storm Sewer

B. Construction Documents and Drawings


A. American Society for Testing and Materials (ASTM) Latest Edition D 422 Method for Particle Size Analysis D 698 Test of Moisture Density Relations of Soils - Standard Proctor Method D 1557 Test for Moisture-Density Relations of Soils Using 10-lb. (4.5 Kg)

Hammer and 18-inch (457 mm) Drop (Modified Proctor) D 2216 Laboratory Determination of Moisture Content of Soil D 2487 Classification of Soils for Engineering Purposes D 2922 Tests for Density of Soil and Soil-Aggregate in Place by Nuclear Methods

(Shallow Depth) D 3017 Test for Moisture Content of Soil and Soil-Aggregate in Place by Nuclear

Methods (Shallow Depth) D 4318 Test for Plastic Limit, Liquid Limit, & Plasticity Index of Soils

B. American Association of State Highway and Transportation Officials (AASHTO) latest edition T 88 Mechanical Analysis of Soils


A Geotechnical Engineer may be retained to perform construction inspection and testing on backfilling operations. This inspection will not relieve the Contractor from his responsibility to complete the work in accordance with the plans and specifications.

1.05 SUBMITTALS

A. Shop Drawings or details pertaining to Site Utilities are not required unless use of materials, methods, equipment, or procedures contrary to the Construction Drawings or these specifications are proposed. No work shall be performed until shop drawings, if required, have been accepted by the Owner and Engineer.



KCBA Architects TRENCH EXCAVATION AND BACKFILL FOR UTILITIES 2531.00 SECTION 31 2333 - 2 04/29/2021

B. The Contractor shall contact all utility companies and identify any requirements. Contractor shall provide written confirmation of the status of all utility construction to the Owner at the time of the preconstruction conference or no later than 30 days following the project possession date.

C. Submit a sample of each type of offsite fill and/or bedding material that is to be used in backfilling.

1.06 PROJECT RECORD DOCUMENTS

A. Accurately record actual locations of all subsurface utilities, structures and obstructions encountered.

B. Accurately record any as-built variation from the construction plans and specifications. The Contractor shall provide as-built drawings within 30 days of project completion.

PART 2 PRODUCTS

2.01 MATERIALS

A. Bedding Material: AASHTO No. 67 processed sand and gravel free from debris, clay lumps, organic, or other deleterious material, and complying with following gradation requirements:

U. S. Sieve Size Percent Passing (by weight) 1 Inch 100 3/4 Inch 90-100 3/8 Inch 20-55 No. 4 0-10 No. 8 0-5

B. Backfill material as approved by the owner and/or the Geotechnical Engineer.

PART 3 EXECUTION

3.01 PREPARATION

A. Set all lines, elevations, and grades for utility and drainage system work and maintain for the duration of work. Provide careful maintenance of benchmarks, property corners, monuments, or other reference points.

B. Protect and maintain in operating condition, existing utilities encountered during utility installation. Repair any damage to surface or subsurface improvements shown on Drawings.

C. Verify location, size, elevation, and other pertinent data required to make connections between existing utilities and drainage systems, and proposed construction indicated on Drawings. Coordinate all building utility connection locations and elevations with architectural plans. Contractor shall comply with all local codes and regulations.




D. Install dewatering systems that will be required to construct the proposed utilities to the design elevations and using the methods described herein. Water pumped out of excavations shall be disposed of on-site, and will not be discharged directly to the city storm drainage system.

E. Over excavate and properly prepare areas of subgrade that are not capable of supporting the proposed systems. These areas are to be stabilized by using acceptable backfill materials and/or additional bedding material placed and compacted as specified to the satisfaction of the Geotechnical Engineer.

3.02 EXCAVATION

A. Contact local utility companies before excavation begins. Dig trenches at proper width and depth for laying pipe, conduit, or cable and in accordance with utility company requirements. Cut trench banks for safety and remove stones as necessary to avoid point-bearing.

B. All trench excavation side walls shall be sloped, shored, sheeted, braced or otherwise supported by means of sufficient strength to protect the workmen within them in accordance with the applicable rules and regulations established for construction by the Department of Labor, Occupational Safety and Health Administration (OSHA), and by local ordinances. Lateral travel distance to an exit ladder or steps shall not be greater than 25 feet in trenches 4 feet or deeper.

C. Trench width requirements below the top of the pipe shall not be less than 12" nor more than 18" wider than outside surface of any pipe or conduit that is to be installed. All other trench width requirements for pipe, conduit, or cable shall be the minimum practical width that will allow for proper compaction of trench backfill and satisfy safety and utility company regulations.

D. Accurately grade trench bottom to an elevation 6 inches below the pipe, as per bedding details in construction drawings. Provide uniform bearing and support for each section of pipe on bedding material at every point along the entire length, except where necessary to excavate for bell holes, pipe joints, or other required connections. Dig bell holes and depressions for joints after trench bottom has been graded. Dig no deeper, longer, or wider than needed to make the joint connection properly.

E. During excavation, stockpile excavated material suitable for backfilling in an orderly manner far enough from the trench to avoid overloading, slides, or cave-ins.

F. Remove excavated materials from the site which are not suitable for backfill.

G. Any abandoned structures utilities or debris discovered during excavation shall be removed and disposed of, or capped.

H. Utility alignments have been designed to avoid expected obstructions wherever possible. If unanticipated significant obstructions are encountered during utility installation work immediately notify the Owner and Engineer.

I. Prevent surface water from flowing into trenches or other excavations by temporary grading or other methods, as required. Remove accumulated water in trenches or other excavations by pumping or other acceptable methods. Water shall not be directly pumped to the city sewer system.



KCBA Architects TRENCH EXCAVATION AND BACKFILL FOR UTILITIES 2531.00 SECTION 31 2333 - 4 04/29/2021

J. Utility installation shall meet the following minimum pipe installation depths, or applicable codes and ordinances, measured from finished grade or the paved surface.

1. Water Mains: 48" to top of pipe barrel or 6" below the frost line (established by the local building official), whichever is deeper.

2. Sanitary Sewer: Elevations, and grades as indicated on Drawings.

3. Storm Sewer: Elevations, and grades as shown on Drawings.

4. Electrical Conduits: 24" minimum to top of secondary service conduits, 36" minimum to the top of primary service conduits, or as required by NEC 300-5, NEC 710-36 codes, or the local utility company requirements, whichever is deeper.

5. Telephone Conduits: 18" minimum to top of conduit, or as required by the local utility company, whichever is deeper.

6. Gas Mains and Service: 30" minimum to top of pipe, or as required by the local utility company, whichever is deeper.

3.03 LATERALS

All utilities intended to connect to services within any building will be extended to the exterior face of building and elevation to connect at those geometrical locations indicated or inferred on the drawings. All utility ends will be plugged and marked by a 2" x 4" piece of wood extending from the utility invert to 4 feet above final grade.

3.04 PIPE BEDDING

A. Accurately cut trenches for pipe or conduit to designated line and grade 6 inches below the bottom of the pipe, to width as specified previously. Compact trench bottoms a minimum of 95% of the maximum dry density as determined by ASTM D1557, Modified Proctor Test.

B. Over excavate wet or unstable soil, if encountered, from trench bottom as necessary to provide a suitable base for continuous and uniform bedding.

C. Place bedding material and compact in 6 inch loose lifts to obtain at least 95% of the maximum dry density. Accurately shape bedding material to conform to lower portion of pipe barrel. After pipe installation, place and compact bedding material as specified above in maximum 6 inch loose layers to the springline of the pipe.

3.05 BACKFILLING

A. After pipe or conduit has been installed, bedded and tested as necessary, backfill trench to finish grade in 12 inch thick loose lifts of approved fill soils, compacting and testing each lift as specified above.




B. Systematically backfill to allow maximum time for natural settlement. Do not backfill over porous, wet, frozen or spongy subgrade surfaces. Should these conditions exist, the areas should be removed, replaced and recompacted.

3.06 COMPACTION

A. Exercise proper caution when compacting immediately over top of pipes or conduits.

B. Maintain optimum moisture content of fill materials to attain required compaction density.

PART 4 COMPENSATION

4.01 BASIS OF PAYMENT

A. The bid price shall include all labor, materials, equipment, inspections and associated costs to complete the work described herein.




2531.00 SOIL EROSION AND SEDIMENT CONTROL KCBA Architects04/29/2021 SECTION 31 2500 - 1

SECTION 31 2500 - SOIL EROSION AND SEDIMENT CONTROL

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Temporary and permanent soil erosion control systems.

1.02 RELATED SECTIONS

A. Section 329100 – Topsoil

B. Section 329200 – Lawns and Grasses

C. Contract Drawings and Documents


A. The Pennsylvania Department of Environmental Protection (PADEP) Erosion and Sediment Pollution Control Program Manual, latest edition.


A. Contractor shall apply for and obtain a Soil Erosion and Sediment Control Permit or Grading Permit from the Township Engineering Department, if required.

B. The Contractor shall make frequent inspections of temporary soil erosion controls and maintain them in working order until permanent soil erosion controls are established.

1.05 ENVIRONMENTAL REQUIREMENTS

A. The Contractor shall protect adjacent properties and water resources from soil erosion and sediment damage throughout construction.

PART 2 PRODUCTS

2.01 MATERIALS

A. Quick-growing grasses such as wheat, rye or oats.

B. Fencing for siltation control.

C. Fibrous blankets by North American Green SC150BN, biodegradable (if necessary), or approved Equal.

D. Temporary mulches such as loose hay, straw, netting, wood, cellulose or agricultural silage.

E. Fence stakes shall be metal stakes a minimum of 5 feet in length and be either metal stakes or 2 in x 2 in hardwood stakes driven 1’ – 6” into the ground.



KCBA Architects SOIL EROSION AND SEDIMENT CONTROL 2531.00 SECTION 31 2500 - 2 04/29/2021

F. Filter fabric.

PART 3 EXECUTION

3.01 PREPARATION

A. Review site conditions.

3.02 SOIL EROSION CONTROL AND SLOPE PROTECTION IMPLEMENTATION

A. Place soil erosion control systems in accordance with the Contract Documents prior to any earthwork construction.

B. Limit the surface area of erodible earth material exposed by clearing and grubbing, excavation, borrow and embankment operations.

C. The Contractor will be required to incorporate all permanent soil erosion control features into the project at the earliest practical time to minimize the need for temporary controls. Cut slopes shall be permanently seeded and mulched as the excavation proceeds to the extent considered desirable and practical. Equip catch basins with filter fabric inlet protection immediately upon construction.

D. The temporary soil erosion control systems installed by the Contractor shall be maintained as directed by the Owner’s Engineer to control siltation at all times during the life of the contract. The Contractor must respond to any maintenance or additional work ordered by the Owner’s Engineer within a 48 hour period.

E. Slopes that erode easily shall be temporarily seeded as the work progresses with quick growing grass grains of wheat, rye or oats unless otherwise specified in the Lawns and Grasses and Topsoil Specifications. In areas where seeding is ineffective, as determined by the Township, the Owner’s Engineer or other governing authorities, the Contractor shall provide fibrous netting at no additional cost to the Owner.

F. All soil erosion control measures shall be maintained until all permanent improvements to the site are complete unless otherwise directed by the Owner’s Engineer.




2531.00 ASPHALTIC CONCRETE PAVING KCBA Architects04/29/2021 SECTION 32 1216 - 1

SECTION 32 12 16 – ASPHALTIC CONCRETE PAVING

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Preparation and placement of asphaltic concrete binder course.

B. Preparation and placement of asphaltic concrete surface course.

1.02 RELATED SECTIONS

A. Section 31 23 16 - Excavation, Backfill, and Subgrade Preparation for Pavement

B. Section 32 16 13 - Curbs and Sidewalks

C. Section 32 17 23 - Pavement Markings

D. Pennsylvania Department of Transportation Standard Specifications, latest edition.

E. Contract Drawings and Documents


A. The Asphalt Institute (AI) latest edition

MS 2 Mix Design Methods for Asphaltic Concrete and Other Hot Mix Types MS 3 Asphalt Plant Manual MS 19 Basic Asphalt Emulsion Manual

B. US Army Corp of Engineers

UN-13 Hot Mix Asphalt Paving Handbook, (CE MP-ET)

C. American Society of Testing and Materials (ASTM) latest edition

D 946 Penetration - Graded Asphalt Cement for use in Pavement Construction

D 1188 Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Paraffin-Coated Specimens

D 1559 Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus

D. American Association of State Highway and Transportation Officials (AASHTO) latest edition

M 117 Mineral Filler "Bitumen-Saturated Cotton Fabrics Used in Roofing and Waterproofing"

M 140 Tack Coat "Emulsified Asphalt" M 208 Tack Coat "Cationic Emulsified Asphalt" M 226 Viscosity Graded Asphalt Cement



KCBA Architects ASPHALTIC CONCRETE PAVING 2531.00 SECTION 32 1216 - 2 04/29/2021

T 245 Marshall Mix Design

E. Pennsylvania Department of Transportation Standard Specifications, latest edition.


A. At the discretion of the Owner, an Engineer, selected and paid by Owner (herein referenced to as “Owner’s Engineer”, may be retained to perform construction testing of in-place asphaltic concrete courses for compliance with requirements for thickness, compaction, and surface smoothness. Asphaltic surface and base courses shall be randomly cored at minimum rate of 1 core per 20,000 sq. ft of paving. However, no less than 3 cores in light duty areas and 3 cores in heavy duty areas shall be obtained. Coring holes shall be immediately filled with full-depth asphaltic concrete. Asphaltic concrete pavement samples shall be tested for conformance with mix design.

B. Establish and maintain required lines and elevations.

C. In-place compacted thickness shall not be less than thickness specified on Contract Documents. Areas of deficient paving thickness shall receive tack coat and minimum 1-in. overlay; or shall be removed and replaced to proper thickness, at discretion of Owner; until specified thickness of course is met or exceeded at no additional expense to Owner.

D. Testing shall be performed on finished surface of each asphalt concrete course for smoothness, using 10-ft straightedge applied parallel with, and at right angles to centerline of paved area. Results of tests shall be made available to Owner upon request. Surfaces will not be acceptable if the following 10-ft straightedge tolerances for smoothness are exceeded:

Base Course Surface: 1/4-inch Wearing Course Surface: 3/16-inch

E. Check surface areas at intervals necessary to eliminate ponding areas. Remove and replace unacceptable paving as directed by Owner.

F. Field density test for in-place materials shall be performed by examination of field cores in accordance with one of following standards:

1. Bulk specific gravity of paraffin-coated specimens: ASTM D 1188.

2. Bulk specific gravity using saturated surface-dry specimens: ASTM D 2726. Rate of testing shall be 1 core per 20,000 sq. ft of pavement, with minimum of 3 cores. Cores shall be cut from areas representative of project. Areas of insufficient compaction shall be delineated, removed, and replaced in compliance with Specifications at no additional expense to Owner.

1.05 SUBMITTALS

A. Design Mix: Before any asphaltic concrete paving is constructed, submit actual design mix to the Owner’s Engineer for review and/or approval. Design mix submittal shall follow the format as indicated in the Asphalt Institute manual MS-2, Marshall Stability Method; and shall include the type/name of the mix, gradation analysis, grade of asphalt cement used, Marshall




Stability (lbs.), flow, effective asphalt content (percent), and direct references to the Standard Specifications sections for each material. The design shall be for a mixture listed in the current edition of the Standard Specifications. Mix design over three (3) years old will not be accepted by the Owner’s Engineer.

B. Material Certificates: Submit materials certificate to the Owner’s Engineer which is signed by material producer and Contractor, certifying that materials comply with, or exceed, the requirements herein.

C. Testing Results: Results of concrete, steel and paving tests performed by Contractor’s testing laboratory shall be submitted to Owner’s Engineer in a timely manner.

D. The results of Marshal Tests for the day of installation shall be submitted to the Field Engineer with the first truck delivery each day of asphalt placement.


A. Weather Limitations:

1. Apply prime and tack coats when ambient temperature is above 40 degrees Fahrenheit, and when temperature has been above 35 degrees Fahrenheit for 12 hours immediately prior to application. Do not apply when base is wet, contains excess moisture, or during rain.

2. Construct asphaltic concrete paving when atmospheric temperature is above 40 degrees Fahrenheit.

B. Maintain access for vehicular and pedestrian traffic as required for other construction activities. Utilize temporary striping, flagmen, barricades, warning signs, and warning lights as required.

PART 2 - PRODUCTS

2.01 MATERIALS

A. Provide asphalt-aggregate mixture to meet Pennsylvania Department of Transportation standards.

B. Asphalt Cement: Comply with AASHTO M 226; Table 2 AC-10, AC-20, or AC-30, viscosity grade, depending on local mean annual air temperature. See chart below:

Temperature Condition Asphalt Grades

Cold, mean annual air temperature AC-10 at 45 degrees Fahrenheit or lower 85/100 pen.

Warm, mean annual air temperature AC-20 between 45 degrees Fahrenheit and 60/70 pen. 75 degrees Fahrenheit




Hot, mean annual air temperature AC-30 at 75 degrees Fahrenheit or higher

C. Prime Coat: Medium curing cut-back asphalt or asphalt penetrating prime coat consisting of either MC-30 or SS-1h.

D. Tack Coat: Emulsified asphalt; AASHTO M 140 or AASHTO M 208, SS-1h, CSS-1, or CSS-1h, diluted with 1 part water to 1 part emulsified asphalt.

E. Mineral Filler: Rock or slag dust, hydraulic cement, or other inert material complying with AASHTO M 117, if recommended by state highway department specifications.

F. Asphalt-Aggregate Mixture: Unless otherwise noted on Contract Documents, Design Mix shall have minimum stability based on 50-blow Marshall complying with ASTM D 1559 of 1000 lb with flow between 8 and 16. The Design Mix shall be within sieve analysis and bitumen ranges specified below unless approved otherwise by Owner prior to placement.

SIEVE ANALYSIS OF MIX Square Sieve Total_Percent_Passing

1/2" 100% 3/8" 80 - 100% #4 50 - 75% #8 30 - 60% #16 20 - 45% #30 15 - 35% #50 10 - 30% #200 4 - 10%

Percent bitumen by weight of total mix: 5.0 - 8.5 percent Air voids: 3 - 6 percent Aggregate voids filled with asphalt cement: 70 - 82 percent Allowable variance of bitumen by weight of total mix = 0.4 percent

2.02 EQUIPMENT

Maintain equipment in satisfactory operating condition and correct breakdowns in manner that will not delay or be detrimental to progress of paving operations.

PART 3 - EXECUTION

3.01 PREPARATION

A. Proofroll prepared base material surface to check for unstable areas. Paving work shall begin only after unsuitable areas have been corrected and are ready to receive paving.

B. Remove loose material from compacted base material surface immediately before applying prime coat.




3.02 APPLICATIONS

A. Prime Coat:

1. Apply bituminous prime coat to base material surfaces where asphaltic concrete paving will be constructed.

2. Apply bituminous prime coat in accordance with Pennsylvania Department of Transportation Standard Specifications, latest edition.

3. Apply at minimum rate of 0.25 gal per sq. yd over compacted base material. Apply to penetrate and seal, but not flood surface.

4. Take necessary precautions to protect adjacent areas from overspray.

5. Cure and dry as long as necessary to attain penetration of compacted base and evaporation of volatile substances.

B. Tack Coat:

1. Apply to contact surfaces of previously constructed asphaltic concrete base courses or Portland cement concrete and surfaces abutting or projecting into asphaltic concrete or into asphaltic concrete pavement.

2. Apply tack coat to asphaltic concrete base course. Apply emulsified asphalt tack coat between each lift or layer of full depth asphaltic concrete bases and on surface of bases where asphaltic concrete paving will be constructed.

3. Apply emulsified asphalt tack coat in accordance with Pennsylvania Department of Transportation Standard Specifications.

4. Apply at minimum rate of 0.05 gal per sq. yd of surface.

5. Allow to dry until at proper condition to receive paving.

3.03 ASPHALTIC CONCRETE PLACEMENT

A. Place asphaltic concrete mixture on completed compacted subgrade surface, spread, and strike off. Spread mixture at following minimum temperatures:

1. Ambient temperature between 40 degrees Fahrenheit and 50 degrees Fahrenheit, mixture temp. = 285 degrees Fahrenheit

2. Ambient temperature between 50 degrees Fahrenheit and 60 degrees Fahrenheit, mixture temp. = 280 degrees Fahrenheit

3. Ambient temperature higher than 60 degrees Fahrenheit, mixture temp. = 275 degrees Fahrenheit




B. Whenever possible, pavement shall be spread by finishing machine; however, inaccessible or irregular areas may be placed by hand methods. Hot mixture shall be spread uniformly to required depth with hot shovels and rakes. After spreading, hot mixture shall be carefully smoothed to remove segregated course aggregate and rake marks. Rakes and lutes used for hand spreading shall be type designed for use on asphalt mixtures. Loads shall not be dumped faster that they can be properly spread. Workers shall not stand on loose mixture while spreading.

C. Paving Machine Placement: Apply successive lifts of asphaltic concrete in transverse directions with surface course placed parallel to flow of traffic. Place in typical strips not less than 10-ft wide.

D. Joints: Make joints between old and new pavements, or between successive days and work in manner that will provide continuous bond between adjoining work. Construction joints shall have same texture, density, and smoothness as other sections of asphaltic concrete course. Clean contact surfaces of joints and apply tack coat.

3.04 ROLLING AND COMPACTION

A. Mixture, after being spread, shall be thoroughly compacted by rolling as soon as it will bear the weight of rollers without undue displacement. Number, weight, types of rollers, and sequences of rolling operations shall be such that required density and surface are consistently attained while mixture is in workable condition.

B. The bituminous concrete pavement shall have a minimum thickness as specified on the Contract Documents and should be compacted to a minimum of 96% of the maximum unit weight as determined by the Marshall Mix Design Procedures in accordance with ASTM D-1559.

C. Compact mixture with hot hand tampers or vibrating plate compactors in areas inaccessible to rollers.

D. Breakdown Rolling: Accomplish breakdown or initial rolling immediately following rolling of joints and outside edge. Check surface after breakdown rolling and repair displaced areas by loosening and filling with hot material.

E. Second Rolling: Follow breakdown rolling as soon as possible, while mixture is hot. Continue second rolling until mixture has been thoroughly compacted.

F. Finish Rolling: Perform finish rolling while mixture is still warm enough for removal of roller marks. Continue rolling until roller marks are eliminated and course has attained maximum density.

G. Patching: Remove and replace paving areas mixed with foreign materials and defective areas. Cut out such areas and fill with fresh, hot asphaltic concrete. Compact by rolling to maximum surface density and smoothness.

H. Protection: After final rolling, do not permit vehicular traffic on pavement until it has cooled and hardened. Erect barricades to protect paving from traffic until mixture has cooled enough not to become marked.




I. Scheduling: After complete placement of the base course the contractor may be required to remobilize for the placement of the top course. This schedule requirement will be based on the building progress, and fully at the discretion of the Owners Engineer.




2531.00 CONCRETE PAVING KCBA Architects04/29/2021 SECTION 32 1313 - 1

SECTION 32 13 13 - PORTLAND CEMENT CONCRETE PAVING

PART 1 GENERAL


A. Preparation and placement of Portland cement concrete dumpster pad area, electrical transformer pad and other concrete areas identified on Contract Documents.

B. Preparation and placement of concrete sidewalk.

C. Preparation and placement of concrete curb.


A. Section 31 00 00 - Earthwork

B. Section 31 23 16 - Excavation, Backfill, and Subgrade Preparation for Pavement

C. Pennsylvania Department of Transportation Standard Specifications, latest edition.

D. Westtown Township Requirements.

E. Contract Drawings and Documents


A. American Concrete Institute (ACI) latest edition

301 Specifications for Structural Concrete for Buildings 304R Guide for Measuring Mixing, Transporting and Placing Concrete 308 Standard Practice for Curing Concrete

B. American Society for Testing and Materials (ASTM) latest edition

A 185 Steel Welded Wire Fabric, Plain for Concrete Reinforcement C497 Steel Welded Wire Fabric, Deformed, for Concrete Reinforcement A615 Deformed and Plain Billet-Steel for Concrete Reinforcement C33 Concrete Aggregates C 94 Ready-Mixed Concrete C 150 Portland Cement C 260 Air-Entraining Admixtures for Concrete D 309 Liquid Membrane-Forming Compounds for Curing Concrete C494 Chemical Admixtures for Concrete C1751 Performed Expansion Joint Fillers for Concrete Paving and Structural

Construction (Nonextruding and Resilient Bituminous Types)

C. FS TT-C-800 - Curing Compound, Concrete, for New and Existing Surfaces.

D. Pennsylvania Department of Transportation Standard Specification, latest edition.



KCBA Architects CONCRETE PAVING 2531.00 SECTION 32 1313 - 2 04/29/2021


A. The Contractor shall pay for the services of a test laboratory, approved by the Engineer, for concrete inspection. The test laboratory shall have at least one Professional Engineer on staff and shall submit proof that any concrete inspectors used on the project shall have successfully completed the ACI course in Concrete Inspection within the past year.


C. Check surface areas at intervals necessary to eliminate ponding areas. Remove and replace unacceptable work as directed by Owner’s Engineer.

D. Sweep concrete pavement and wash free of stains, discolorations, dirt, and other foreign material just prior to final inspection.

E. Protect concrete from damage until acceptance of work. Exclude traffic from pavement for at least 14 days after placement. When construction traffic is permitted, maintain pavement as clean as possible by removing surface stains and spillage of material.

1.05 SUBMITTALS

A. Submit materials certificate to the Owner’s Engineer, which is signed by materials producer and Contractor, certifying that materials comply with, or exceed, requirements specified herein.

B. The Contractor shall retain an independent testing agency to perform the required tests. The Contractor shall provide any necessary assistance to the testing agency and provide the testing agency with the intended construction schedule at least one week prior to the start of construction.

C. Submit concrete mix design to the Owner’s Engineer for review at least 14 days prior to use.

D. Testing results of concrete, steel and paving tests performed by Contractor’s testing laboratory shall be submitted to Owner’s Engineer in a timely manner.


A. Maintain access for vehicular and pedestrian traffic as required for other construction activities. Utilize temporary striping, flagmen, barricades, warning signs, and warning lights as required.

PART 2 - PRODUCTS

2.01 MATERIALS

A. Forms: Steel, wood, or other suitable material of size and strength to resist movement during concrete placement and to retain horizontal and vertical alignment until removal. Use straight forms, free of distortion and defects. Use flexible spring steel forms or laminated boards to form radius bends as required. Forms shall be of depth equal to depth of curbing or sidewalk, and so designed as to permit secure fastening together at tops. Coat forms with nonstaining type of coating that will not discolor or deface surface of concrete.




B. Welded Wire Mesh: Welded plain cold-drawn steel wire fabric, ASTM A 185.

C. Reinforcing Bars: Deformed steel bars, ASTM A 615, Grade 60.

D. Concrete materials: Comply with applicable requirements for concrete materials, admixtures, bonding materials, curing materials and others as required. Concrete shall have a minimum 28-day compressive strength of 4000 psi.

E. Joint Sealers: Resilient premolded bituminous impregnated fiberboard units complying with ASTM D 1751 FS HH-F-341, Type II, Class A.

F. Welded wire fabric as indicated on Contract Documents.

2.02 MIX DESIGN AND TESTING

A. Concrete mix design and testing shall comply with requirements of ACI.

B. Design mix to produce normal weight concrete consisting of Portland cement, aggregate, water-reducing admixture, air-entraining admixture, and water to produce following properties:

1. Compressive Strength: 4,000 psi, minimum at 28 days, unless otherwise indicated on Contract Documents.

2. Slump Range: 4-inches +/- 1-inch at time of placement

3. Air Entrainment: 4 to 7 percent

PART 3 - EXECUTION

3.01 PREPARATION

A. Proof-roll prepared base material surface to check for unstable areas. Paving work shall begin only after unsuitable areas have been corrected and are ready to receive paving. Compaction testing for the base material shall be completed prior to the placement of the paving.

B. Remove loose material from compacted base material surface to produce firm, smooth surface immediately before placing concrete.

3.02 INSTALLATION

A. Form Construction

1. Set forms to required grades and lines, rigidly braced and secured.

2. Install sufficient quantity of forms to allow continuance of work and so that forms remain in place minimum of 24 hours after concrete placement.

3. Check completed formwork for grade and alignment to following tolerances: Top of forms not more than 1/8-inch in 10-ft Vertical face on longitudinal axis, not more than



KCBA Architects CONCRETE PAVING 2531.00 SECTION 32 1313 - 4 04/29/2021

1/4-inch in 10-ft

4. Clean forms after each use and coat with form release agent as often as required to ensure separation from concrete without damage.

5. Install 6-inch x 6-inch welded wire fabric as indicated on Contract Documents. Support wire on metal wire chairs to ensure that wire stays mid-depth of sidewalk section during concrete pour.

B. Reinforcement: Locate, place and support reinforcement in accordance with Contract Documents and ACI.

C. Concrete Placement

1. Place concrete in accordance with requirements of Pennsylvania Department of Transportation Standard Specifications and ACI requirements.

2. Do not place concrete until base material and forms have been checked for line and grade. Moisten base material if required to provide uniform dampened condition at time concrete is placed. Concrete shall not be placed around manholes or other structures until they are at required finish elevation and alignment.

3. Deposit and spread concrete in continuous operation between transverse joints, as far as possible. If interrupted for more than 1/2 hour, place construction joint. Automatic machine may be used for curb and gutter placement at Contractor’s option. Machine placement must produce curbs and gutters to required cross-section, lines, grades, finish and jointing as specified for formed concrete. If results are not acceptable, replace with formed concrete as specified.

4. Concrete placement in poor weather conditions shall be subject to limitation of ACI.

D. Joint Construction: Construct expansion, weakened-plane control or contraction, and construction joints straight with face perpendicular to concrete surface. Construct traverse joints perpendicular to centerline, unless otherwise detailed.

1. Weakened-Plane Control or Contraction Joints: Provide joints at spacing of 15-ft o.c. maximum each way. Construct control joints for depth equal to at least 1/4 concrete thickness, as follows:

a. Form tooled joints in fresh concrete by grooving top with recommended tool and finishing edge with jointer.

b. Form sawed joints using powered saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut joints into hardened concrete as soon as surface will not be torn, abraded, or otherwise damaged by cutting action.

2. Construction Joints: Place concrete joints at end of placements and at locations where placement operations are stopped for period of more than 1/2 hour, except where such placements terminate at expansion joints. Construct joints using standard metal keyway-section forms.




3. Expansion Joints: Locate expansion joints at maximum of 20-ft o.c. maximum each way. Provide premolded joint filler for expansion joints abutting concrete curbs, catch basins, manholes, inlets, structures, sidewalks, and other fixed objects.

E. Joint Fillers: Extend joint fillers full-width and depth of joint, and not less than 1/2-inch or more than 1-inch below finished surface where joint sealer is indicated. Furnish joint fillers in one-piece lengths for full width being placed, wherever possible. Where more than one length is required, lace or clip joint filler sections together.

3.03 CONCRETE FINISHING

A. After striking off and consolidating concrete, smooth surface by screening and floating. Adjust floating to compact surface and produce uniform texture. After floating, test surface for trueness with 10-ft straightedge. Distribute concrete as required to remove surface irregularities, and refloat repaired areas to provide continuous smooth finish.

B. Work edges of sidewalks, gutters, back top edge of curb, and formed joints with edging tool, rounding edge to 1/2-inch radius. After completion of floating and trowelling, when excess moisture or surface sheen has disappeared, complete surface finishing, as follows:

1. Paving: provide course, nonslip finish by scoring surface with stiff-bristled broom perpendicular to flow of traffic.

2. Curbs, gutters and sidewalks: Broom finish by drawing fine haired broom across surface perpendicular to line of traffic. Repeat operation as necessary to produce a fine line texture.

C. After form removal, clean ends of joints and point up minor honeycombed areas. Remove and replace areas or sections with major defects, as directed by Owner’s Engineer.

D. Protect and cure finished concrete paving using acceptable moist-curing methods, more particularly described in "water-curing" section of ACI 308.

3.04 BACKFILL

A. After the concrete has set sufficiently, the spaces in front and back of the curb and gutter or sidewalk shall be refilled to the required elevation with suitable material in accordance with Section 02200, which shall be compacted until firm and solid and neatly graded.

3.05 CLEANING AND ADJUSTING

A. Sweep concrete pavement and wash free of stains, discolorations, dirt, and other foreign material just prior to final inspection.

B. Protect concrete from damage until acceptance of work. Exclude traffic from pavement for at least 14 days after placement. When construction traffic is permitted, maintain pavement as clean as possible by removing surface stains and spillage of materials.




2531.00 CURB AND SIDEWALKS KCBA Architects04/29/2021 SECTION 32 1613 - 1

SECTION 32 16 13 - CURB AND SIDEWALKS

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Preparation and Placement of Concrete Sidewalk

B. Preparation and Placement of Concrete Curb


A. Section 31 00 00 - Earthwork.

B. Section 31 23 16 - Excavation, Backfill and Subgrade Preparation for Pavement.

C. Section 32 13 13 - Portland Cement Concrete Paving

D. Pennsylvania Department of Transportation Standard Specifications Latest Edition.

E. Contract Drawing and Documents


A. American Concrete Institute (ACI) latest edition

301 Specifications for Structural Concrete for Buildings 304R Guide for Measuring Mixing, Transporting and Placing Concrete 308 Standard Practice for Curing Concrete

B. American Society for Testing and Materials (ASTM) latest edition

A 185 Steel Welded Wire Fabric, Plain for Concrete Reinforcement C497 Steel Welded Wire Fabric, Deformed, for Concrete Reinforcement A615 Deformed and Plain Billet-Steel for Concrete Reinforcement C33 Concrete Aggregates C 94 Ready-Mixed Concrete C 150 Portland Cement C 260 Air-Entraining Admixtures for Concrete D 309 Liquid Membrane-Forming Compounds for Curing Concrete C494 Chemical Admixtures for Concrete C1751 Performed Expansion Joint Fillers for Concrete Paving and Structural

Construction (Nonextruding and Resilient Bituminous Types)

C. FS TT-C-800 - Curing Compound, Concrete, for New and Existing Surfaces.

D. Pennsylvania Department of Transportation Standard Specifications, latest edition.




KCBA Architects CURB AND SIDEWALKS 2531.00 SECTION 32 1613 - 2 04/29/2021

A. The Contractor shall warrant that concrete curb and base is 4,500 psi unless otherwise noted on the Construction Documents.


C. Check surface areas at intervals necessary to eliminate ponding areas. Remove and replace unacceptable work as directed by Owner.

D. Sweep concrete pavement and wash free of stains, discolorations, dirt, and other foreign material just prior to final inspection.

E. Protect concrete from damage until acceptance of work. Exclude traffic from pavement for at least 30 days after placement. When construction traffic is permitted, maintain pavement as clean as possible by removing surface stains and spillage of material.

1.05 SUBMITTALS

A. Submit concrete mix design to the Owner’s Engineer for review at least 14 days prior to use.


A. Contractor shall maintain access for vehicular and pedestrian traffic as required for other construction activities. Utilize temporary striping, flagmen, barricades, warning signs, and warning lights as required.

PART 2 PRODUCTS

2.01 MATERIALS

A. Forms: Steel, wood, or other suitable material of size and strength to resist movement during concrete placement and to retain horizontal and vertical alignment until removal. Use straight forms, free of distortion and defects. Use flexible spring steel forms or laminated boards to form radius bends as required. The forms shall be of a depth equal to the depth of curbing or sidewalk, and so designed as to permit secure fastening together at the tops. Coat forms with non-staining type coating that will not discolor or deface surface of concrete.

B. Concrete Materials: Comply with requirements of Pennsylvania Department of Transportation Standard Specifications and applicable Section 03300 for concrete materials, admixtures, bonding materials, curing materials and others as required. Concrete shall have a minimum 28-day compressive strength of 4,500 psi.

C. Joint Fillers: Resilient pre-molded bituminous impregnated fiberboard units complying with AASHTO M 213.

D. Welded wire fabric as indicated on Contract Documents.

2.02 MIX DESIGN AND TESTING




A. Concrete mix design and testing shall comply with requirements of ACI and Section 02520 of these Specifications as they relate to Cast-in-Place Concrete.

B. Design mix to produce normal weight concrete consisting of Portland cement, aggregate, water-reducing admixture, air-entraining admixture, and water to produce the following properties:

1. Compressive Strength: 4,500 psi, minimum at 28 days, unless otherwise indicated on the Contract Drawings.

2. Slump Range: 3-inches +/- 1-inch at time of placement

3. Air Entrainment: 4 to 7 percent

PART 3 EXECUTION

3.01 PREPARATION

A. Proof-roll prepared base material surface to check for unstable areas. The paving work shall begin after any unsuitable areas have been corrected and are ready to receive paving. Compaction testing for the base material shall be completed prior to the placement of the paving.

B. Surface Preparation: Remove loose material from compacted base material surface to produce a firm, smooth surface immediately before placing concrete.

3.02 INSTALLATION

A. Form Construction

1. Set forms to required grades and lines, rigidly braced and secured.

2. Install sufficient quantity of forms to allow continuance of work and so that forms remain in place a minimum of 24 hours after concrete placement.

3. Check completed formwork for grade and alignment to following tolerances:

Top of forms not more than 1/8-inch in 10-ft.

Vertical face on longitude axis, not more than 1/4-inch in 10-ft.

4. Clean forms after each use, and coat with form release agent as often as required to ensure separation from concrete without damage.

5. Install 6-inch x 6-inch welded wire fabric as indicated on Contract Documents. Support wire on metal wire chairs to ensure that wire stays mid-depth of sidewalk section during concrete pour.

B. Concrete Placement

1. Comply with applicable requirements of ACI and Architectural Specifications.



KCBA Architects CURB AND SIDEWALKS 2531.00 SECTION 32 1613 - 4 04/29/2021

2. Do not place concrete until base material and forms have been checked for line and grade. Moisten base material if required to provide uniform dampened condition at time concrete is placed. Concrete shall not be placed around manholes or other structures until they are at the required finish elevation and alignment.

3. Place concrete using methods which prevent segregation of mix. Consolidate concrete along face of forms and adjacent to transverse joints with internal vibrator. Keep vibrator away from joint assemblies, reinforcement, or side forms. Consolidate with care to prevent dislocation of dowels, and joint devices.

4. Deposit and spread concrete in continuous operation between transverse joints, as far as possible. If interrupted for more than 2 hours, place construction joint. Automatic machine may be used for curb and gutter placement at Contractor’s option. Machine placement must produce curbs and gutters to required cross section, lines, grades, finish, and jointing as specified for formed concrete. If results are not acceptable, replace with formed concrete as specified.

5. Concrete placement shall be conducted in accordance with related ACI recommended procedures.

C. Joint Construction

1. Transverse Expansion Joints: Transverse expansion joint in sidewalk shall have the filler cut to the exact cross section of the sidewalk. The joints shall be similar to the type of expansion joint used in the adjacent pavement. Joint spacing as specified on the plans.

2. Joint Fillers: Extend joint fillers full-width and depth of joint, and not less than 2-inches or more than 1-inch below finished surface where joint sealer is indicated. Furnish joint fillers in one-piece lengths for full width being placed, wherever possible. Where more than one length is required, lace or clip joint filler sections together.

3. Joint Sealants: All joints shall be sealed with approved exterior pavement joint sealants and shall be installed per manufacturer’s recommendations.

3.03 CONCRETE FINISHING

A. After striking off and consolidating concrete, smooth surface by screening and floating. Adjust floating to compact surface and produce uniform texture. After floating, test surface for trueness with 10-ft straightedge. Distribute concrete as required to remove surface irregularities, and refloat repaired areas to provide continuous smooth finish.

B. Work edges of sidewalks, gutters, back top edge of integral curb, and formed joints with an edging took, and round to 2-inch radius. Eliminate tool marks on concrete surface. After completion of floating and troweling when excess moisture or surface sheen has disappeared, complete surface finishing as follows:

1. Inclined Slab Surfaces: Provide coarse, non-slip finish by scoring surface with stiff-bristled broom perpendicular to line of traffic.




2. Curbs, gutters, and sidewalks: Broom Finish by drawing fine-hair broom across surface perpendicular to line of traffic. Repeat operation as necessary to produce a fine line texture.

C. Do not remove forms for 24 hours after concrete has been placed. After form removal, clean ends of joints and point up any minor honeycombed areas. Remove and replace areas or sections with major defects, as directed.

D. Protect and cure finished concrete paving using acceptable moist-curing methods, more particularly described in the “water-curing” section of ACI 308-81.

3.04 BACKFILL

A. After the concrete has set sufficiently, the spaces in front and back of the curb and gutter or sidewalk shall be refilled to the required elevation with suitable material in accordance with Section 31 00 00, which shall be compacted until firm and solid and neatly graded.

3.05 CLEANING AND ADJUSTING

A. Sweep concrete pavement and wash free of stains, disclorations, dirt, and other foreign material just prior to final inspection.

B. Protect concrete from damage until acceptance of work. Exclude traffic from pavement for at least 14 days after placement. When construction traffic is permitted, maintain pavement as clean as possible by removing surface stains and spillage of materials.




2531.00 PAVEMENT MARKINGS KCBA Architects04/29/2021 SECTION 32 1723 - 1

SECTION 32 1723 - PAVEMENT MARKINGS

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnishing of all materials and equipment and the performing of all labor to complete the installation of pavement striping and markings as shown on the Contract Drawings and as herein specified or directed by the Engineer.

B. This work shall include but is not limited to: 1. Pavement markings for parking spaces, arrows, stop bars and crosswalks.


A. Section 32 1216 – Asphaltic Concrete Paving

B. Contract Drawings and Documents


A. The Pennsylvania Department of Transportation (PennDOT) Specifications – Publication 408, Latest Revision.

B. Contract Drawings and Documents

1.04 SUBMITTALS

A. Product Data: For each manufactured material and product indicated.

PART 2 PRODUCTS

2.01 GENERAL

A. Provide materials from a source listed in PennDOT Bulletin 15. Certify materials as specified in Section 106.03(b)3 of the PennDOT Standard Specifications.

B. White Traffic Paint: Sherwin Williams #B97WD2434, or equal. Yellow Traffic Paint: Sherwin Williams #B97YD2467, or equal.

PART 3 EXECUTION

3.01 GENERAL

A. To attain proper adhesion, perform surface preparation of the road surface according to and provide pretreatment as recommended by the manufacturer.

B. Apply on dry pavement if the air and roadway temperatures are between 50 and 90 degrees Fahrenheit and if the wind speed is less than 20 miles per hour. Identify the location of the markings by applying spots on the pavement at 10 foot intervals



KCBA Architects PAVEMENT MARKINGS 2531.00 SECTION 32 1723 - 2 04/29/2021

3.04 GUARANTEE

A. Where directed, replace material that has not remained within reasonably close conformity to location or has not remained effective in performing useful service for a period of 180 days from date of acceptance.

END OF SECTION



2531.00 TOPSOIL KCBA Architects04/29/2021 SECTION 32 9100 - 1

SECTION 329100 - TOPSOIL

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnishing and placing of topsoil along edge of pavement areas where there is a drop-off from the existing asphalt to provide a pavement edge support, as shown on the Contract Drawings and as herein specified or directed by the Engineer.

B. Placement of Topsoil in areas of disturbances

C. This work shall include preparation of these indicated areas.


A. Contract Drawings and Documents


A. The Pennsylvania Department of Transportation (PennDOT) Specifications – Publication 408, Latest Revision

1.04 SUBMITTALS

A. Product Data: For each manufactured material and product indicated.

1.05 PRODUCT DELIVERY, STORAGE AND HANDLING

A. Packaged Materials: Deliver packaged materials to the location where soils are to be mixed, in unopened bags or containers, each bearing the name, guarantee, and trademark of the producer, material composition, manufacturers’ certified analysis, and the weight of the materials Retain packages for review by the Engineer familiar with the requirements of the site, selected and paid by the Owner (herein referenced to as “Owner’s Engineer”).

B. Soil stored on site temporarily in stockpiles prior to placement shall be protected from intrusion of contaminants and erosion.

PART 2 PRODUCTS

2.01 GENERAL

A. Topsoil shall be acceptable friable loam that is reasonably free of subsoil, claylumps, brush, roots, weeds, other objectionable vegetation, stones, other foreign material larger than 2 inches in any dimension, litter, and/or other material unsuitable or harmful to plant growth.

B. Topsoil shall contain not less than 2.0% nor more than 10.0% organic matter, as determined in accordance with AASHTO-Tl94. Provide topsoil meeting the following grading analysis:



KCBA Architects TOPSOIL 2531.00 SECTION 32 9100 - 2 04/29/2021

Sieve Minimum Percent Passing 2" 100

No. 4 75

No. 10 60

Sand, silt, and clay material passing the No. 10 sieve, as defined by AASHTO-T88 No. and within the following ranges:

Minimum Percent Maximum Percent Sand 5 70 Silt 10 70 Clay 5 36

PART 3 EXECUTION

3.01 GENERAL

A. Grade the areas to be covered by topsoil. Using acceptable methods, loosen soil to a depth of 2 inches before placing the topsoil. Remove stones and other foreign material 2 inches or larger in any dimension. Remove and satisfactorily dispose of unsuitable and surplus material.

B. Place topsoil on the prepared areas and, unless otherwise indicated, spread and compact to a 4-inch uniform depth +/- 1 ½ inches. Compact with a roller weighing not over 120 pounds per foot width of roller or by other acceptable methods, as directed. Remove overdepth topsoil, unless otherwise agreed upon in writing. Do not place topsoil in a wet or frozen condition.

END OF SECTION



2531.00 LAWNS AND GRASSES KCBA Architects04/29/2021 SECTION 32 9200 - 1

SECTION 32 92 00 - LAWNS AND GRASSES

PART 1 - GENERAL

1.01 DESCRIPTION

A. General: Provide lawns and sod in accordance with the contract documents.

B. Related Work Specified Elsewhere:

1. Section 32 93 00 – Landscape Planting 2. Section 32 91 00 - Topsoil

1.02 REFERENCES

A. Hortus III - 1976 Edition, Bailey Horatorium, Cornell University.

B. Technical Association of the Pulp and Paper Industry for Wood Cellulose.

C. Contract Drawings and Documents

1.03 EXAMINATION OF SITE AND DOCUMENTS

A. By submitting a bid the Contractor affirms that he has carefully examined the site and all conditions affecting work under this Section. No claim for additional costs will be allowed because of lack of full knowledge of existing conditions.

B. Plans, specifications, surveys, measurements, other documents and dimensions under which the work is to be performed are believed to be correct; but the Contractor shall have examined them for himself during the Bidding period, as no additional compensation will be made for errors for inaccuracies that may be found therein.

1.04 SUBMITTALS TO ARCHITECT

A. Product Data: Manufacturer's current catalog cuts and specifications of the following:

1. Fertilizer 2. Mulch

C. Certificates:

1. Certificates of inspection as required by law for transportation of each shipment of seed and sod along with invoice.

2. Seed mix certificate including fertilizer and rate of application.

1.05 FIELD QUALITY CONTROL

A. Tests: Samples of materials may be taken and tested for conformity to Specifications at any time.

B. Rejected Materials: Remove rejected materials immediately from the site at contractor's expense. Pay cost of testing of materials not meeting Specifications.



KCBA Architects LAWNS AND GRASSES 2531.00 SECTION 32 9200 - 2 04/29/2021

1.06 DELIVERY, STORAGE AND HANDLING

A. Seed:

1. Delivery: Furnish standard seed in unopened manufacturer's standard containers bearing quantity, analysis and name of manufacturer

2. Storage: Store seed with protection from weather, rodents or other conditions, which would damage or impair the effectiveness of the product.

B. Sod:

1. Harvest and Delivery: Harvest from the source and deliver to project site within 24 hours. Deliver only as much sod as can be installed in one day's work.

2. Review: Sod not transplanted within this time period shall be reviewed prior to installation.

C. Mulch:

1. Labeling: Each package of the cellulose fiber shall be marked by the manufacturer to show the air dry weight content.

2. Storage: Store seed with protection from weather, rodents or other conditions, which would damage or impair the effectiveness of the product.

1.07 PROJECT/SITE CONDITIONS

A. Existing Conditions: For protection of existing plants to remain, refer to Spec Section 32 93 00 – Landscape Planting

1.08 SEQUENCING AND SCHEDULING

A. Period of Application of Hydroseeding:

1. Irrigated Areas: Within fourteen (14) calendar days after the completion of finish grading in any area.

B. Scheduling:

1. Hydroseeding: Perform on a section-by-section basis, upon approval of Architect, and immediately after finish grading and irrigation installation except for seasonal Limitations. a. Season: Plant in Fall or Spring.

1) Allow sufficient time for full germination and 2 mowings before preliminary acceptance.

2. Embankment and Slopes: Complete in a continuous manner.

3. Acceptable Planting Window:

Place grass seed or sod only at seasonal times within appropriate temperature range and wind conditions for plant development as approved by Architect:

a. Acceptable Seeding Seasons/Times:

1) Spring: April 1st - June 15th




2) Fall: September 1st - October 15th

b. Seeding or sodding at any time other than within the above seasons shall be allowed only when the Contractor submits a written request for permission to do so and permission is granted in writing by the Owner. Newly seeded or sodded areas, if installed out of season, must be continuously watered according to best recommended and Architect approved practice. Contractor shall be responsible for providing an acceptable stand of grass as specified.

1.09 WARRANTY

A. The 90 day maintenance period begins with the Architects certification of substantial completion. The warranty period begins after the final acceptance of the maintenance period. The final acceptance occurs upon satisfactory completion of all work, included in the 90 day maintenance period, but exclusive of replacement of materials under the Warranty Period.

B. Time Period: Warrant that lawns and sod shall be in a healthy and flourishing condition of active growth one (1) year from date.

C. Appearance During Warranty: Lawns and sod shall be free of dead or dying patches, and all areas shall show foliage of a normal density, size and color.

D. Delays: Delays caused by the Contractor in completing planting operations, which extend the planting into more than one planting season, shall extend the Warranty Period correspondingly.

E. Coverage: Warrant growth and coverage of hydroseeded planting to the effect that a minimum of 95% shall be covered with specified planting after one growing season with no bare spots.

F. Exceptions: Contractor shall not be held responsible for failures due to neglect by owner, vandalism, etc., during Warranty Period. Report such conditions in writing.

PART 2 - PRODUCTS

2.01 MANUFACTURERS/GROWERS

A. Lawn Sod: Obtain sod from a certified source within proximity of the project site and of a variety which will thrive under local conditions.

B. Hydro Mulch and Soil Stabilizer: Obtain mulch and soil stabilizer from a certified source within proximity of the project site.

C. Fertilizer:

1. Regular Type: Nitrogen content derived from organic sources; bearing manufacturer's statement of analysis. Minimum requirements: 12% nitrogen, 4% phosphoric acid, 8% potash.

2. Slow-release Type: 50% of nitrogen is in slow-release form. Content derived from organic or inorganic sources; bearing manufacturer's statement of analysis. Minimum requirements: 12% nitrogen, 4% phosphoric acid, 8% potash.




3. Commercial Mixed Type: Nitrogen content derived from organic or inorganic sources, bearing manufacturer's statement of analysis. Minimum requirements: 10% nitrogen, 10% phosphoric acid, 10% potash.

D. Lime: Ground limestone containing not less than 85% carbonates; 50% passing 100 mesh sieve and 90% passing 20 mesh sieve.

E. Seed: Shall be of a mix as specified on the plans furnished in un-opened containers and providing percentage of seed varieties and inert matter. All non-turf seeds shall be purchased and applied at a Pure Live Seed (PLS) rate as indicated on the plans. This may require the contractor to purchase/apply seed at a high rate as measured by bulk weight.

F. Straw Bales: Clean bales of straw of hay, wheat, rye, oats or barley.

G. Hydromulch: Wood cellulose fiber containing no germination inhibiting or growth inhibiting agents. Characteristics shall be as follows:

1. Percent moisture content: 9.0% (+3.0%) 2. Percent organic matter: 99.2% (+0.8). 3. Percent ash content: 0.8% (+0.2%). 4. pH: 4.8 (+0.5).

5. Water Holding Capacity: 1150 grams water/100 grams fiber, minimum.

H. Mulch: Clean, seed free straw of hay, wheat, rye, oats or barley.

I. Staking Pegs: 3/4" diameter by 8" long softwood. J. Water: Clean, potable.

2.02 ACCESSORIES

A. Mulch: Shall be Product: "Silva Fiber", "X-100 Spra-mulch", or "Conwed".

1. Composition: Green-colored, fibrous, 100% virgin wood fiber mulch containing no growth or germination-inhibiting factors.

2. Weight: Weight specifications of this material from suppliers, and for all applications, shall refer only to air dry weight of the fiber material. Absolute air dry weight is based on the normal standards for wood cellulose and is considered equivalent to 10% moisture.

3. Dispersion in Slurry: Mulch shall be manufactured in such manner that after addition to and agitation in slurry tanks with fertilizer, seed, water and other approved additives, fibers in the material will become uniformly suspended to form a homogeneous slurry.

4. Absorption Capacity: When hydraulically sprayed on the ground, the material will form a blotter-like groundcover impregnated uniformly with seed, which will allow absorption of moisture and allow rainfall to percolate to the underlying soil.

2.03 HYDROSEED EQUIPMENT (if required)

A. Type: Commercial type hydro-seeder for the application of slurry. Equipment shall have a built-in agitation system with an operating capacity sufficient to agitate, suspend and homogeneously mix slurry.

B. Distribution Lines: Large enough to prevent stoppage and to provide even distribution of the slurry over the ground.




C. Pump Capacity: 150 psi at the nozzle.

D. Slurry-Tank: Minimum capacity of 1,000 gallons and shall be mounted on a traveling unit which will place the slurry tank and spray nozzles within sufficient proximity to the areas to be seeded.

2.04 MIXES

A. Hydroseeding Mix per (1,000 Sq. Ft.)

1. Lawn Areas: 30 lbs. - Mulch 7 lbs. - Lawn Seed 10 lbs. – Fertilizer

PART 3 - EXECUTION

3.01 EXAMINATION

A. Verification of Conditions:

1. Stones, Weeds, Debris: Verify that all areas to receive hydroseeding and sodding are clear of stones larger than 1/2 in. diameter, weeds, debris and other extraneous materials.

2. Grades: Verify that grades are within 1 in. plus or minus of the required finished grades. Verify that fertilization have been installed in another section. Report all variations in writing.

3.02 PREPARATION

A. Soil Moisture:

1. Excessive Moisture: Do not commence work of this section when soil moisture content is so great that excessive compaction will occur, nor when it is so dry that dust will form in air or that clods will not break readily.

2. Inadequate Moisture: Apply water, as necessary, to bring soil moisture content to an acceptable level.

3.03 HYDROSEEDED LAWN

A. Preparation: Do all slurry preparation at the job site.

1. Water: Add water to the tank when the engine is at half throttle. When the water level has reached the height of the agitator shaft, establish good re-circulation and add seed.

2. Seed: Do not allow seed to remain more than 30 min. in slurry. 3. Fertilizer: Add fertilizer, followed by the mulch. The mulch shall only be added to the mixture after

the seed, and when the tank is at least 1/3 filled with water. 4. Mixing: Open the engine throttle to full speed when the tank is half-filled with water. Add all the

mulch by the time the tank is 2/3 to 3/4 full. Commence spraying immediately when the tank is full.




B. Seed Bed Preparation:

1. Rolling: Roll amended soil with 200 pound water ballast roller and bring to finish grade.

2. Raking: Lightly rake seed bed surface to 1/4 in. depth. Seed immediately thereafter, provided the seed bed has remained in friable condition. Application:

1. General: Apply specified slurry mix in a sweeping motion to form a uniform mat at the specified rate. Keep hydroseeding within designated areas and keep from contact with other plant materials.

2. Unused Mix: Do not use a slurry mixture, which has not been applied within 4 hours of mixing. Promptly remove from the site.

3. Protection: After application, do not operate any equipment over the hydroseeded areas. 4. Reseeding: Reseed all areas and parts of areas, which fail to show a uniform stand of lawn until all

areas are covered with strands of lawn.

3.04 SODDED LAWN INSTALLATION

A. Sod Bed Preparation:

1. Rolling: Roll amended soil with 200 pound water ballast roller. 2. Moistening: After all unevenness in the soil surface has been corrected, lightly moisten the soil

immediately prior to laying the sod. 3. Timing: Sod immediately thereafter, provided the sod bed has remained in friable condition.

B. Sodding Operations:

1. Starter Strip: Lay the first row of sod in a straight line, with subsequent rows parallel to and tightly against each other, with no spaces between strips. Stagger lateral joints. Do not stretch or overlap sod. Butt all joints tightly to eliminate all voids.

2. Cutting: Use a sharp knife to cut sod to fit curves and paving. 3. Tamping and Rolling: Thoroughly tamp and roll sod to make contact with sod bed. Roll each entire

section of completed sod. 4. Watering: Thoroughly water sod immediately after installation to wet the underside of the new sod

pad and the soil immediately below to a depth of 6 in. 5. Top-Dress Fertilizer: Apply at the rate of six (6) pounds per 1,000 square feet at 25 days and at 50

days after sodding.

3.05 SEEDING MEADOW AREAS

A. Do not use wet seed or seed, which is moldy or otherwise, damaged in transit or storage.

B. Sow seed using a spreader, seeding machine or hydroseeder. Do not seed when wind velocity exceeds 5 mi. per hr. Distribute seed evenly over entire area by sowing equal quantity in 2 directions at right angles to each other. Under no circumstances shall wildflower seeds be mixed with to nurse crop seeds or warm season grass seed in the same spreader or mechanical seeder. Variations in seed size, shape a weight will contribute to uneven application and undesirable results.

C. If spreader is utilized for wildflower seeding, mix sufficient quantity of slightly moist sand with seed to ensure even application of seed. After seeding, rake seed lightly into top 1/8” of soil, roll lightly, and water with a fine spray.




D. If cultipacker or seed drill is used to apply seeds, equipment should be set to install seed at a maximum of ¼” depth followed by firming of the soil to maximize seed/soil contact.

E. Sow not less than the quantity of seed specified or scheduled. If utilizing spreader or seeding machine, protect seeded area against erosion by spreading straw type mulch after completion of seeding operation. If seeds are applied using a hydroseeder, 5-10% of the mulching fiber should be applied with the seeds, the balance should be applied separately a second step for optimal seedling germination. Spread uniformly to form a continuous blanket not less than 1½” thick, loose measurement over seeded areas.

1. If wind is a problem, then anchor mulch by spraying with tactifier at the rate of 10 to 13 gallons per 1000 sq. ft. Take precautions to prevent damage or staining of construction or other plantings adjacent to mulched areas.

2. If a hydroseeder is employed to apply seed, the proper procedures should be followed to minimize the amount of time that seed is circulated through pumps and paddles prior to application. Over circulation may damage the seed.

F. For areas to be seeded before 26 Apri1

1. Areas to be seeded/planted are to be shallow tilled to a depth of 6” to remove existing turf type grasses and weeds, to expose dormant weed seeds and to remove large stones over 1½” in any dimension and sticks, roots, rubbish and other extraneous matter. Limit preparation to areas, which will be planted after preparation. Hand cultivation only will be permitted within the canopy areas of existing trees.

2. Soil amendments, as determined by soil tests, are to be spread and incorporated into topsoil to a minimum depth of 6”.

3. Fine grade lawn and wildflower areas to smooth, even surface with loose, uniformly fine texture. Roll, rake and drag meadow areas, remove ridges and fill depressions, as required to meet finish grades.

4. Moisten prepared meadow planting areas to settle soil and amendments. Do not create a muddy soil condition.

5. Approximately two weeks following initial tilling, areas to be seeded/planted are to be treated with a non-selective, glyphosate based herbicide to kill any newly germinated grasses and weeds.

For areas to be seeded after 26 April

1. Following the first flush of spring growth on existing turf areas, areas to be seeded/planted are to be mowed to a height of 4” with all debris raked off and disposed of off-site. Areas to be seeded/planted are then to be spayed with a non-selective glyphosate based herbicide to kill all grasses and forbs.

2. Approximately four weeks after initial spraying, Contractor is to inspect sprayed areas with Architect to determine success of vegetation removal. Follow up spot treatments may be required and shall be applied at that time. Soil amendments, as determined by soil tests, are to be applied to areas to be seeded/planted.




G. Preparation of Unchanged Grades: Where lawns or meadows are to be planted in areas that have not been altered or disturbed by excavating, grading, or stripping operations, prepare soil for lawn planting as follows: Till to a depth of not less than 6”; apply soil amendments and initial fertilizers as specified; remove high areas and fill in depressions; till soil to a homogenous mixture of fine texture, free of lumps, clods, stones, roots, and other extraneous matter. Hand cultivation only will be permitted within the canopy of areas of existing trees.

1. Note: Some limited tree protection areas may require removal of mulch, debris, stumps, herbaceous material, etc. before lawn can he installed.

2. Prior to preparation of unchanged areas, herbicidally treat or physically remove existing grass, vegetation and turf. Dispose of such material properly outside Owner’s property; do not turn over into soil being prepared for lawns.

3.6 MAINTENANCE OF MEADOW AREAS

A. General Maintenance Requirements:

1. Maintenance work shall include but not be limited to watering; remedial work such as repair of eroded areas, reseeding, and keeping the area clean. All other work as deemed by the Contractor required in support of his guarantee, or as may be pointed out to the Contractor by the Architect during the guarantee period shall be provided.

2. In early spring before growth begins, mow to a height of 4 to 6 inches and leave the residue on the ground as a reservoir of viable seed.

3. For grassy annual weed control, apply post-emergent herbicides such as “Acclaim” or approved equal, as per manufacturer’s recommendations and with written approval of Architect. Apply twice during first growing season.

4. Selectively apply broadleaf weed control spot spray as required with a broadleaf selective herbicide as recommended by manufacturer twice during first growing season.

5. Apply overseed to wildflower areas original wildflower seed mix at 50% original rate.

3.07 CLEANING

A. Hydroseed Overspray: Immediately after application, thoroughly wash off any plant materials, planting areas, or paved areas not intended to receive slurry mix.

B. Erosion: Immediately restore eroded areas. Keep all adjacent paved surfaces cleaned of dirt, mud or stains and organic debris.




2531.00 LANDSCAPE PLANTING KCBA Architects04/29/2021 SECTION 32 9300 - 1

SECTION 32 93 00 - LANDSCAPE PLANTING

PART 1 GENERAL

1.01 SCOPE OF WORK

A. The Contractor shall furnish all materials and perform all work in accordance with these specifications, drawings, and instructions provided by the Owner's representative hereafter also referred to as Architect.

B. The work shall include everything shown on the drawings and required by the specifications and everything to which in the judgment of the Architect is incidental to what is shown on the drawings or required by the specifications.


A. Construction Documents and Drawings

B. Section 31 00 00 - Earthwork

C. Section 31 23 33 - Excavating, Backfilling, and Compacting for Utilities

D. Section 32 91 00 – Topsoil

E. Section 32 93 00 – Lawns & Grasses

1.03 REFERENCES

A. Plant material shall in all cases conform with requirements of the American Standard for Nursery Stock latest versions of rules and grading adopted by the American Association of Nurserymen, Inc., but upgraded to meet the following additional requirements.


A. All work completed and materials furnished and installed shall be of the best quality and shall be in strict accordance with the intention of the drawings, specifications and samples. The Contractor shall cooperate with the Architect so that no error or discrepancy in the drawings or specifications shall cause defective or inappropriate materials to be used or poor workmanship to be allowed and so that the work may proceed in the most efficient and effective manner. If there is a discrepancy between the graphic count of plants and the plant list count of plants on the Landscape Plan, the graphic count shall govern.

B. Work must be carried out only during weather conditions favorable to landscape construction and to the health and welfare of plants. The suitability of such weather conditions shall be determined by the Architect.

C. Before commencing work, all trees and shrubs which are to be saved must be protected from damage by the placement of fencing flagged for visibility or some other suitable protective procedure consistent w/ tree protection measures on the plans and approved by the Owner's Construction Manager. No work may begin until this requirement is fulfilled.



KCBA Architects LANDSCAPE PLANTING 2531.00 SECTION 32 9300 - 2 04/29/2021

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D. In order to avoid damage to roots, bark or lower branches, no truck or other equipment shall be driven or parked within the drip line of any tree, unless the tree overspreads a paved way.

E. The contractor shall use any and all precautionary measures when performing work around trees, walks, pavements, utilities, and any other features either existing or previously installed under this Contract.

F. The Contractor shall adjust depth of earthwork and topsoiling when working immediately adjacent to any of the aforementioned features in order to prevent disturbing tree roots, undermining walks and pavements, and damage in general to any existing or newly incorporated item.

G. Plants transported to the project in open vehicles shall be covered with tarpaulins or other suitable covers securely fastened to the body of the vehicle to prevent injury to the plants. Closed vehicles shall be adequately ventilated to prevent overheating of the plants. Evidence of inadequate protection following digging, carelessness while in transit, or improper handling or storage shall be cause for rejection. All plants shall be kept moist, fresh, and protected. Such protection shall encompass the entire period during which the plants are in transit, being handled, or are in temporary storage.

H. Where excavating, fill, or grading is required within the branch spread of trees that are to remain, the work shall be performed as follows:

1. TRENCHING: When trenching occurs around trees to remain, the tree roots shall not be cut but the trench shall be tunneled under or around the roots by careful hand digging and without injury to the roots.

2. RAISING GRADES: When the existing grade at tree is below the new finished grade, and fill not exceeding 16 inches (16") is required, clean, washed gravel graded from one to two inches (1" - 2") in size shall be placed directly around the tree trunk. The gravel shall extend out from trunk on all sides a minimum of 18 inches (18") and finish approximately two inches (2") above the finished grade at tree. Install gravel before any earth fill is placed. New earth fill shall not be left in contact with the trunks of any trees requiring fill. Where fill exceeding 16 inches (16") is required, a dry laid tree well shall be constructed around the trunk of any tree to be preserved. The tree well shall extend out from the trunk on all sides a minimum of three feet (3') and to three inches (3") above finish grade or as indicated in the drawings. Coarse grade rock shall be placed directly around the tree well extending out to the drip line of the tree. Clean, washed gravel graded from one to two inches (1" - 2") in size shall be placed directly over the coarse rock to a depth of three inches (3"). Approved backfill/topsoil material shall be placed directly over the washed gravel to desired finished grade.

3. LOWERING GRADES: Existing trees in areas where the new finished grade is to be lowered shall have regrading work done by hand to elevation as indicated. Roots as required shall be cut cleanly three inches (3") below finished grade.

4. Trees marked for preservation that are located more than six inches (6") above proposed grades shall stand on broad, rounded mounds and be graded smoothly into the lower level. Trees located more than 16 inches (16") above proposed grades shall have a dry laid stone wall, or other retaining structure as detailed on the plans,




constructed a minimum of five feet (5') from the trunk. Exposed or broken roots shall be cut clean and covered with topsoil immediately to prevent desiccation.

I. The Architect reserves the right to inspect and reject plants at any time and at any place, and reserves the right to inspect plants at the growing nursery.

J. The Architect shall have the final approval for acceptance of the landscape planting work.

1.05 SAMPLES

A. It is the responsibility of the Contractor, before ordering or purchasing materials, to provide samples of those materials to the Architect for approval, if so requested.

B. The Contractor is to submit certification tags from trees, shrubs and miscellaneous materials verifying type, quality and purity.

1.06 QUALITY OF PLANTS

A. Plant shall in all cases conform with requirements of the American Standard for Nursery Stock latest versions of rules and grading adopted by the American Association of Nurserymen, Inc., but upgraded to meet the following additional requirements.

B. Unless specifically noted otherwise, all plants shall be of selected specimen quality, exceptionally heavy, symmetrical, tightly knit, so trained or favored in their development and appearance as to be superior in form, number of branches, compactness and symmetry. All plants shall have a normal habit or sound, healthy, vigorous plants with well-developed root system.

C. Plants shall be free of disease, insect pests, eggs or larvae.

D. Plants shall not be pruned before delivery.

E. Trees with abrasion of the bark, sunscalds, disfiguring knots or fresh cuts of limbs over one and one-fourth inches (1-1/4") which have not completely calloused shall be rejected.

F. All plants shall be typical of their species or variety and shall have a normal habit of growth and be legibly tagged with the proper name. All plants shall have been grown under climatic conditions similar to those in the locality of the site of the project under construction or have been acclimated to such condition for at least two (2) years.

G. The root system of each shall be well provided with fibrous roots. All parts shall be sound, healthy, vigorous, and well-branched.

H. All plants designated ball and burlap (B&B) must be moved with the root systems as solid units with balls of earth firmly wrapped with burlap. The diameter and depth of the balls of earth must be sufficient to encompass the fibrous root feeding systems necessary for the healthy development of the plant. No plant shall be accepted when the ball of earth surrounding its roots has been badly cracked or broken preparatory to or during the process of planting. The balls shall remain intact during all operations. All plants that cannot be planted at once must be heeled-in by setting in the ground and covering the balls with soil or mulch and then watering. Hemp burlap and twine is preferable to treated. If treated burlap or twine is used, all twine is to be cut from around trunk and all burlap is to be removed.




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I. The trunk of each tree specified as ‘tree form’ shall be a single trunk growing from a single unmutilated crown of roots. No part of the trunk shall be conspicuously crooked as compared with normal trees of the same variety.

J. The thickness of each shrub shall correspond to the trade classification "No.1". Single stemmed or thin plants shall not be accepted. The side branches must be generous, well twigged, and the plant as a whole well branched to the ground. The plants must be in healthy condition, free from dead wood, bruises or other root or branch injuries.

K. Plants shall be measured when branches are in their normal position.

L. Shrubs shall meet the requirements for spread, height or container size stated in the Plant List. The measurements are to be taken from the ground level to the average height of the shrub and not to the longest branch. Height and spread dimensions specified refer to the main body of the trees (measured from the crown of the roots to the tip of the top branch) shall be not less than the minimum size designated.

M. Caliper measurements shall be taken at a point on the trunk six inches (6") above natural ground line for trees up to four inches (4") in caliper, and at a point 12 inches (12") above the natural ground line for trees exceeding four inches (4") in caliper.

N. If a range of size is given, no plant shall be less than the minimum size, and not less than 50% of the plants shall be as large as the upper half of the range specified.

O. The measurements specified are the minimum size acceptable and, where pruning is required, are the measurements after pruning.

1.08 MAINTENANCE OPERATIONS BEFORE APPROVAL

A. Plant care shall begin immediately after each plant is satisfactorily installed and shall continue throughout the life of the contract until final acceptance of the project.

B. Care shall include, but not be limited to, replacing mulch that has been displaced by erosion or other means, repairing and reshaping water rings or saucers, maintaining stakes and guys as originally installed, watering when needed or directed, and performing any other work required to keep the plants in a healthy condition.

C. Contractor shall remove and replace all dead, defective and/or rejected plants as required before final acceptance.

1.09 NOTIFICATION OF DELIVERY

A. Unless otherwise authorized by the Architect, the Contractor shall notify the Architect at least 48 hours in advance of the anticipated delivery date of any plant materials. A legible copy of the invoice, showing kinds and sizes of materials included for each shipment shall be furnished to the Architect.

1.10 GUARANTEE




A. The condition of all new plant materials is the responsibility of the Contractor and shall be approved by the Architect.

B. Until final approval, any replacement of plant materials that may be necessary shall be at the expense of the Contractor.

C. In addition to other standard provisions, the Contractor's bid amount shall also provide for the following:

1. Maintenance necessary during Establishment Period including provision of supplemental irrigation, through final acceptance.

2. Replacement in kind, or with a substitute acceptable to the Architect, of all plant materials not in a healthy growing condition or that has died back to the crown or beyond normal pruning limits.

3. The Contractor shall also be responsible for any damage caused by his operations and shall dispose of all rubbish and excess soil as directed.

PART 2 PLANTING MATERIALS

2.01 TOPSOIL

A. Work included – Topsoil incidental to landscape planting operations shall be as described in Section 32 91 00 Soil Preparation and Mixes.

2.04 SHREDDED HARDWOOD BARK MULCH

Shredded hardwood bark mulch or approved equal shall be used as a four inch (4") top dressing in all plant beds and around all trees planted by landscape contractor. Single trees or shrubs shall be mulched to the outside edge of the saucer. Mulch shall be of sufficient character as not to be easily displaced by wind or water runoff.

2.05 STAKING MATERIALS

A. Plant materials which satisfy the requirements of this specification should not require staking, however contractor shall install stakes if requested by the Architect or Owner.

B. Stakes shall be 2" x 2" x 8' white oak pressure treated for stakes. Three (3) stakes per tree.

C. Guy wire for tree staking shall be pliable No. 12 galvanized soft steel wire.

D. Hose shall be two-ply fiber-bearing rubber garden hose, not less than one-half inch (½") inside diameter, black or green, and of suitable length.

2.06 WATER

On-site water shall be furnished by the Contractor. Hose and other watering equipment shall be furnished by the Contractor.

2.9 ANTI-DESICCANT SPRAY




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A. Spray shall be an emulsion which will provide a protection fill over plant surfaces. It shall be permeable enough to permit transpiration such as "Wilt-Pruf", manufactured by Nursery Product Specialties Company, Croton Falls, New York, or other approved equal. It shall be delivered in the manufacturer's containers and mixed according to the manufacturer's instructions.

PART 3 PLANTING PROCEDURES AND EXECUTION

3.01 PLANTING COORDINATION

A. The Contractor shall inform the Architect of the date when the planting shall commence and of the anticipated delivery date of the material.

B. Failure to notify the Architect in advance of order to arrange proper scheduling may result in loss of time or rejection of a plant or plants not installed as specified or directed.

3.02 DIGGING AND HANDLING

A. Bare rooted shrubs shall be dug with adequate fibrous roots. Roots of these plants shall be covered with a uniformly thick coating of mud by being puddled immediately after they are dug, or packed in moist straw, or moss.

B. Balled and burlapped plants shall be dug with firm natural balls of earth of sufficient diameter and depth to include most of the fibrous roots.

C. Roots or balls of all plants shall be adequately protected at all times from the sun and from drying winds.

D. All balled and burlapped plants which cannot be planted immediately upon delivery shall be set on the ground in a shady location and shall be well protected with soil, wet mulch or other acceptable material. Plant material shall be kept moist with periodic watering with fresh clean water. Bare rooted plants, which cannot be planted immediately, shall be heeled-in upon delivery. All shall be kept moist. At no time shall plants be staged in direct sun or on asphalt surfaces.

E. Bundles of plants shall be opened and the plants separated before the roots are covered. Care shall be taken to prevent air pockets among the roots. During planting operations, bare roots shall be covered with canvas, hay or other suitable material. No plant shall be bound with wire or rope at any time so as to damage the bark or break the branches.

3.03 TREES AND SHRUB PLANTING OPERATIONS

A. Planting operations shall be performed at a steady rate of work unless weather conditions make it impossible to work. No plant material shall be planted in frozen ground.

B. The Contractor shall provide sufficient tools and equipment required to carry out the planting operation.

C. All plants too large for two men to lift in and out of holes shall be placed with a sling. Do not rock trees in holes to raise.




D. For soil mix for plant holes, see Materials - 2.01 Topsoil.

E. If rock or other underground obstruction is encountered, the Architect may require plant pits to be relocated, the pits enlarged or the plants deleted from the contract.

F. Locations containing unsuitable subsoil shall be treated in one of the following manners: 1. Where unsuitability within the construction site is deemed by the Architect to be due to

excessive compaction caused by heavy equipment or by the presence of boards, mortar, concrete or other construction materials in sub-grade, and where the natural subsoil is other than A.A.S.T.H.O. classification of A6 or 7, the Contractor shall loosen such areas with spikes, discing, or other means to loosen the soil to a condition acceptable by the Architect. The Contractor shall also remove all debris and objectional material. Soil should be loosened to a minimal depth of 12 inches (12") with additional loosening as required to obtain adequate drainage. Contractor may introduce sand or organic matter into the subsoil to obtain adequate drainage as directed by the Architect. All such remedial measures shall be considered as incidental to the work and no extra payment shall be made for this part of the work.

2. Where sub-grade is deemed by the Architect/ Engineer to be unsuitable because the natural subsoil falls into an A.A.S.T.H.O. classification of A6 or 7 and contains moisture in excess of 30%, then such a condition shall be rendered suitable by installation of a sub-drainage system or by other means described elsewhere in these specifications. Where such conditions have not been known or revealed prior to planting time and where they have not been recognized in the preparation of plans and specifications, then the Architect shall issue a change order to install the proper remedial measures, all of which shall be in addition to the contract sum.

G. Adjustments in locations of planting beds and bed outlines shall be made as directed. In the event that pits or areas for planting are prepared and backfilled with topsoil to grade prior to commencement of lawn operations, they shall be so marked that when the work of planting proceeds, they can be readily located. In case underground obstructions such as ledges or utilities are encountered, location shall be changed under the direction of the Architect without charge, to the owner.

H. Holes for trees shall be at least two and one-half times (2.5Xs) greater in diameter than the diameter of the root ball and of a depth that allows the tree to sit at the same elevation as grows in the nursery. Holes for shrubs and vines shall be at least 12 inches (12") greater in diameter than the spread of the root system and of a depth that allows the shrub and vines to sit at the same elevation as grown in the nursery.

I. To the topsoil in the backfilling of tree holes and shrub beds, there shall be added as the progress of the work permits, ground limestone if soil tests indicate it is needed and with prior approval by Architect, and commercial fertilizer at the rate of three (3) pounds for tree up to three inches (3") in caliper, one (1) pound per one inch (1") in caliper for larger trees, six (6) ounces for small shrubs and eight (8) ounces for each shrub four feet (4') or over. Ground limestone shall be omitted in the case of acid soil plants. The limestone and fertilizer shall be thoroughly mixed with the topsoil in the planting operation.

J. The plants shall be planted in the center of the holes and at the same depth as they previously grew. Topsoil shall be backfilled in layers of not more than eight inches (8") and each layer watered sufficiently to settle before the next layer is put in place. Topsoil shall be tamped under




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edges of balled plants. Enough topsoil shall be used to bring the surfaces to finish grade when settled.

1. A saucer shall be provided around each plant as shown on the drawings.

2. Plants shall be soaked with water twice within the first twenty-four (24) hours of time of planting. Water shall be applied with low pressure so as to soak in thoroughly without dislodging the topsoil.

3. A three-inch (3") layer (after settlement) of mulch or approved equal shall be applied directly on to the entire area of each saucer or planting bed.

3.04 MAINTENANCE DURING CONSTRUCTION

A. Maintenance shall begin immediately after planting. Plants shall be watered, mulched, weeded, pruned, sprayed, fertilized, cultivated, and otherwise maintained and protected until provisional acceptance. Settled plants shall be reset to proper grade and position, planting saucer restored and dead material removed. Stakes and wires shall be tightened and repaired. Defective work shall be corrected as soon as possible after it becomes apparent and weather and season permit.

B. If a substantial number of plants are sickly or dead at the time of inspection, acceptance shall not be granted and the Contractor's responsibility for maintenance of all plants shall be extended until replacements are made or existing plants are deemed acceptable by the Architect.

C. All replacements shall be plants of the same kind and size specified on the Plant List. They shall be furnished and planted as specified above. The cost shall be borne by the Contractor. Replacements resulting from removal, loss, or damage due to occupancy of the project in any part, vandalism, physical damage by animals, vehicles, etc., and losses due to curtailment of water by local authorities shall be approved and paid for by the Owner.

D. Plants shall be guaranteed for a period of one (1) year after inspection and provisional acceptance.

E. At the end of the Establishment Period, inspection shall be made again. Any plant required under this contract that is dead or unsatisfactory to the Architect or Owner shall be removed from the site. These shall be replaced during the normal planting season.

PART 4 MAINTENANCE CONTRACT

4.01 GENERAL LANDSCAPING

A. Contractor shall provide the Owner with a written proposal due no later than the established possession date for landscape maintenance from an experienced local A.A.N. certified nursery business capable of performing the work outlined herein. The proposal shall be for a period of 1 year and be renewable in one-year increments. Maintenance will begin immediately after completion of substantial completion; the maintenance contract work shall not void the guarantee of the plant material for the first year after acceptance by the Owner. Replacement of dead plant material shall be covered under the warrantee of the original installation, final approval and acceptance of the landscaping and irrigation by the Owner.




B. Landscape maintenance shall include all necessary watering, cultivation, weeding, pruning, wound dressing, disease and insect pest control, protective spraying, straightening plants which lean or sag, adjustments of plants which settle or are planted too low, mowing of turf areas, replacement of mulch that has been displaced by erosion or other means, repairing and reshaping of water rings or saucers, re-placement of mulch that has been displaced by erosion or subsidence, and the reseeding or replanting of those areas affected. Removal of all rubbish, waste, tools, and equipment used in the execution of the contract at the end of each work day, and any other procedure consistent with good horticultural practice necessary to insure normal, vigorous and healthy growth of all plant material are also part of this maintenance contract.

C. During the first year of the maintenance contract, any replacement of plant material shall be the responsibility of the installing contractor.

D. Landscape maintenance contractor shall purchase and maintain Contractor's general liability insurance in the amounts of $10,000 to protect him from the Contractor's operations under the maintenance contract. Certification of such insurance shall be filed with the Owner prior to the commencement of the work.

4.02 WATERING

A. The irrigation system, if installed on the site, shall be used by the maintenance contractor for the watering program, but any failure of the system does not eliminate the Contractor's responsibility of maintaining the desired level of moisture necessary to maintain vigorous, healthy growth.

B. The quality of water applied at one time shall be sufficient to penetrate the soil to a minimum of eight inches (8") in shrub beds and six inches (6") in turf areas at a rate, which will prevent saturation of the soil.

C. On-site water shall be furnished by the Owner. Hose, portable tanks, pumps, nozzles or any other watering equipment required to transport water from available locations and apply it by approved methods shall be furnished by the Contractor.

4.03 WEEDING

Maintenance contractor shall keep all planting areas free from weeds and undesirable grasses by a method and by materials approved by the A.A.N.

4.04 DISEASE AND INSECT PEST CONTROL

Inspect all plant material at least once a month to locate any disease or insect pest infestations. Upon the discovery of any disease or insect pest infestation, identify, or have identified, the nature or species of the infestation. A method of control in accordance with common A.N.A. standards shall be immediately implemented.

4.05 FERTILIZING

Maintenance contractor is to fertilize plant material on a regularly scheduled program to fit the requirements of the plant material to maintain vigorous and healthy plant growth.

4.06 PRUNING AND REPAIR




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The amount of pruning shall be limited to the minimum necessary to remove dead or injured twigs and branches or to maintain safety in vehicular use areas. Pruning shall be done in such a manner as to not change the natural habit or shape of the plant. All cuts shall be made flush, leaving no stubs.

4.07 MOWING

Mow all grass areas at regular intervals to keep the grass height from exceeding three inches (3"). Mow grass areas in such a manner as to prevent clippings from blowing on paved areas, and sidewalks. Cleanup after mowing shall include sweeping or blowing of paved areas and sidewalks to clear them of mowing debris.

4.08 CLEAN UP

During the course of maintenance planting, excess and waste materials shall be continuously and promptly removed at the end of each work day.

4.09 MAINTENANCE REPORT AND SCHEDULE OF ACTIVITIES

Maintenance contractor shall provide a schedule and report to store management and to the address referenced in this section, 4.01, A. that details his planned maintenance activities including any subcontractors.

4.10 MAINTENANCE CONTRACT

These terms and conditions herein outlined shall be attached and made a part of a maintenance contract with the Owner.

4.11 TERMINATION OF THE MAINTENANCE CONTRACT

A. If the Owner fails to make payment for a period of ninety (90) days without written clarification, the maintenance contractor may, upon twelve (12) additional days' written notice to the Owner, terminate the contract and recover from the Owner, payment for all work executed and for any proven loss sustained upon any materials, equipment, or tools, including reasonable profit and damages applicable to the maintenance contract.

B. If the maintenance contractor defaults or persistently fails or neglects to carry out the work in accordance with the maintenance contract, the Owner, after twelve (12) days' written notice to the maintenance contractor, and without prejudice to any other remedy they may have, may make good such deficiencies and deduct the cost thereof, including compensation for additional services made necessary thereby, from the payment then or thereafter due the contractor, or at their option, may terminate the contract.




2531.00 STORM SEWER SYSTEMS KCBA Architects04/29/2021 SECTION 33 4100 - 1

SECTION 33 41 00 - STORM SEWER SYSTEMS

PART 1 GENERAL


Work under this section shall consist of providing all labor, plant facilities, materials, tools, equipment, shop drawings and supervision necessary and required to install all of the storm drainage facilities as specified in accordance with the Contract Documents. This work shall include but not be limited to:

A. Installation of the drainage system consisting of manholes, catch basins, pipes, and all necessary and required accessory items and operations.

B. Installation of drainage facilities within the public Right-of-Way and/or easements, including connection to existing drainage facilities.


A. Section 31 00 00 – Earthwork

B. Section 31 23 33 - Trench Excavation and Backfill for Utilities

C. Section 31 25 00 – Soil Erosion and Sediment Control

D. Local governing authority and code requirements.

J. All necessary construction permits.

K. Contract Documents


A. American Society for Testing and Materials (ASTM) latest edition.

A706 Type 1R C14 Concrete Sewer, Storm Drain, and Culvert Pipe. C55 Concrete Building Brick. C76 Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe. C443 Joints for Circular Concrete Sewer and Culvert Pipe, Using Rubber

Gaskets. C478 Precast Reinforced Concrete Manhole Sections. C923 Resilient Connectors between Reinforced Concrete Manhole

Structures and Pipes. D1557 Test Methods for Moisture-Density Relations of Soils and

Soil-Aggregate Mixtures Using 10 lb (4.54 Kg) Rammer and 18 inch (457 mm) Drop.

D2922 Test Methods for Density of Soil and Soil - Aggregate in Place by Nuclear Methods (Shallow Depth).

D3017 Test Methods for Moisture Content of Soil and Soil-Aggregate Mixtures.



KCBA Architects STORM SEWER SYSTEMS 2531.00 SECTION 33 4100 - 2 04/29/2021

2

F2468 ADS N-12 Smooth Interior Pipe

B. American Association of State Highway and Transportation Officials (AASHTO) - latest edition

C. International Masonry Industry All-Weather Council (IMIAC): Recommended Practices and Guide Specification for Cold Weather Masonry Construction.


A. An Engineer may be retained to perform construction inspection on-site based on measurement, visual observation, and judgement.

B. Visual field confirmation may be performed by the Owner’s Engineer as part of the construction testing requirements.

C. All costs related to reinspection due to failures shall be paid for by the Contractor at no additional expense to Owner. The Owner reserves the right to direct any inspection that is deemed necessary. Contractor shall provide free access to site for inspection activities.

1.05 SUBMITTALS

A. Product Data: Provide manufacturer's certificate for castings, pipe and accessories to certify that products meet or exceed specified requirements.

B. Submit shop drawings of the precast structures to the Owner’s Engineer for review prior to fabrication. Shop drawings shall include dimensions, reinforcing, joint treatment, invert elevations and invert locations.

1.06 PROJECT RECORD DOCUMENTS

A. Accurately record actual locations of pipe runs, connections, catch basins, cleanouts, and invert elevations.

B. Identify and describe unexpected variations to subsoil conditions and location of uncharted utilities.

1.07 COORDINATION

A. Coordinate the Work with termination of storm sewer connection outside building including connection to existing storm sewer system.

PART 2 PRODUCTS

2.01 STORM PIPE MATERIALS AND ACCESSORIES

A. High Density Polyethylene Pipe (HDPE): ADS N-12 ST IB Pipe Per ASTM F2648 Having a smooth interior and annular exterior corrugations. 4-inch through 60-inch meeting ASTM F2648 with a Manning’s “n” value for use in design being 0.012. Pipes being joined by bell and spigot joint meeting ASTM F2468 with soil tight gaskets meeting ASTM F477. Fitting conforming to ASTM F2306.




B. Reinforced Concrete Pipe (RCP): Straight and flared end sections complying with requirements of ASTM C 76, Class III unless another class type is indicated on the Contract Documents, installed with flexible plastic (Bitumen) gaskets at all joints. Gaskets shall comply with AASHTO M-198 75I, Type B, and shall be installed in strict accordance with pipe manufacturer's recommendations.

C. Polyvinyl Chloride Pipe (PVC)

1. On-site pipe and fittings shall comply with ASTM D 3034, rated SDR 35 unless otherwise specified on the Contract Documents or required by the local utility. Pipe shall be continually marked with manufacturer's name, pipe size, cell classification, SDR rating, and ASTM D 3034 classification.

2. Pipe joints shall be integrally molded bell ends per ASTM D 3034, Table 2, with factory supplied elastomeric gaskets and lubricant.

2.02 CATCH BASINS, INLETS, MANHOLES AND COMPONENTS

A. General: All manholes, catch basins and drain inlets shall be built in accordance with, and in the locations shown on the Contract Documents. All structures will require shop drawings approved by the Owner's Engineer and Township Engineer.

No concrete or masonry shall be placed when the temperature is below forty (40) degrees Fahrenheit, or when indications are for lower temperatures within twenty-four (24) hours, unless protection of concrete and masonry is approved by the Owner's Engineer. Damage to the structure because of freezing shall be corrected by the Contractor at his own expense, to the satisfaction of the Owner's Engineer.

Manholes, catch basins and drain inlets shall be constructed as soon as the pipe laying reaches the location of the structures. Should the Contractor continue his pipe laying without making provisions for completion of the structures, the Owner's Engineer shall have the authority to stop the pipe laying operations until the structure is completed.

Any structure which is mislocated or oriented improperly shall be removed and re-built in its proper location, alignment and orientation at the Contractor's expense.

B. Precast Concrete Manholes: AASHTO M199-93/ASTM C478-90b. Manhole diameter shall be selected to accommodate the inflow and outflow pipes.

Pour-in-place or Precast Reinforced Concrete Catch Basins (Control Structures): AASHTO M199-93/ASTM C478-90b rated for H20 loading, with minimum concrete strength of 3,000 psi. Inlet size shall be selected to accommodate the inflow and outflow pipes.

1. Manhole Barrel: Reinforced precast concrete in accordance with ASTM C478 with gaskets in accordance with ASTM C923 & C361

a. Construct manholes of precast concrete sections as required by Contract Documents to size, shape, and depth indicated, but never less than 4-ft inside diameter.




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2. Mortar and Grout: Mortar for finishing and sealing shall be Class "C". Honeycombing less than two (2) inches deep shall be repaired using Class "D" mortar.

3. Brick Transition Reinforcement: Formed steel 8-gage wire with galvanized finish.

4. Foundations: All foundations shall rest on firm soil of uniform bearing and stone subbase as shown on Contract Documents.

5. Inverts: Brick or smooth concrete invert channels shall be constructed in all manholes and in all catch basins and drain inlets which do not have sumps, to insure a smooth flow of water through the structure.

The invert channel shall be constructed to the elevations shown on the Contract Documents and/or as approved by the Owner's Engineer. Channels shall slope smoothly and evenly from the entrance pipe to the outlet pipe.

6. Frames, Cover, and Gratings: Frames, Covers and/or gratings for manholes, catch basins, and drain inlets shall be of the type and size indicated on the Contract Documents. Frames shall be well bedded in mortar and shall be set accurately to the correct alignment and grade.

7. Ladder Rungs: Forged Aluminum to dimensions shown on Contract Documents to be Alco steps 6061T6 or approved equal.

8. Precast Structures: Precast structures shall be installed only after shop drawings have been approved by Owner’s Engineer and shall meet the requirements of ASTM C478.

Grout around pipes which protrude through the walls of the structure and on all joints shall contain "Antihydro", or other approved additive to insure water tightness. Cement grout shall contain two parts cement to one part sand and additive in accordance with manufacturer's recommendations. Mortar shall be applied to the bottom 1/3 of the opening before the pipe is inserted.

The top grade of the precast concrete corbel section shall be set sufficiently below finished grade to permit a maximum of seven (7) and a minimum of two (2) courses of 8-inch brick to be used as risers to adjust the grade of the casting. Manhole frames shall be set on a grout pad as specified herein above.

9. Provide precast manhole shaft construction with eccentric cone top section and lipped male/female rubber gasket joints or mortar joints.

10. Brick shall be new units conforming to AASHTO Designation M-91, latest revision, Grade MS.

11. Mortar shall conform to ASTM C270, Type M.

12. Pipe joints for rigid pipes shall be made with mortar, grout, gaskets, or as recommended by the pipe manufacturer.




13. Manholes and Pipe constructed within the Right-of-Way shall be manufactured and installed in accordance with all applicable Standard Specifications and the Contract Documents.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify that trench cut and excavation is ready to receive work and excavations, dimensions, and elevations are as indicated on Contract Documents.

3.02 PREPARATION

A. Hand trim excavations to required elevations. Correct over excavation with fine aggregate.

B. Remove large stones or other hard matter which could damage piping or impede consistent backfilling or compaction.

C. Protect benchmarks, property corners, and other survey monuments from damage or displacement. If marker needs to be removed it shall be referenced by licensed land surveyor and replaced, as necessary, by same.

3.03 GENERAL

A. The Contractor shall install all drainage structures and pipe in the locations shown on the Contract Documents and/or as approved by the Owner's Engineer. Pipe shall be of the type and sizes specified and shall be laid accurately to line and grade. Structures shall be accurately located and properly oriented.

B. Excavation and Backfill shall be in accordance with Section 31 23 33 of these specifications.

C. Storage and Handling of Pipe - All pipe shall be protected against impact, shock and free fall, and only equipment of sufficient capacity and proper design shall be used in the handling of the pipe. Storage of pipe on the job shall be in accordance with the pipe manufacturer's recommendations.

D. Damage to Pipe - Pipe which is defective from any cause, including damage caused by handling, and determined by the Owner's Engineer as unrepairable, shall be unacceptable for installation and shall be replaced at no cost to the Owner as directed by the Owner's Engineer.

Pipe that is damaged or disturbed through any cause prior to acceptance of the Work, shall be repaired, realigned or replaced as directed by the Owner's Engineer, at the Contractor's expense.

3.04 BEDDING

A. Excavate pipe trench and place bedding material in accordance with Section 31 23 33 for work of this Section.

3.05 INSTALLATION - PIPE




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A. Laying Pipe: Each length of pipe shall be laid with firm, full and even bearing throughout the entire length, in a trench prepared and maintained in accordance with Section 31 23 33 of these Specifications and Contract Documents. Pipe shall be laid upgrade unless otherwise approved by the Owner’s Engineer.

Concrete pipe over 24-inches in diameter shall be laid with the lift holes on top of the pipe. After the pipe is installed, the lift holes shall be sealed with suitable concrete plugs to the satisfaction of the Owner's Representative. No lift holes will be permitted in pipes 24-inches in diameter and smaller.

Bell and spigot pipe shall be laid with the bell end upgrade. The pipe shall be joined so that there will be uniform space around the pipe. Trimming of the pipe shall not be allowed.

Every length of pipe shall be inspected and cleaned of all dirt and debris before being laid. Prior to placing a length of pipe, the end of the previously laid length shall be carefully and thoroughly wiped smooth and clean to obtain an even and close fitting joint.

No length of pipe shall be laid until the preceding lengths of pipe have been thoroughly embedded in place, so as to prevent movement or disturbance of the pipe.

B. Place pipe on minimum 6-inch thick bed of compacted bedding or as detailed on the Contract Documents.

C. Install pipe, fittings, and accessories in accordance with ASTM C12, ASTM D2321, manufacturer's instructions and/or state or local requirements. Seal joints to be watertight.

D. Lay pipe to slope gradients noted on Contract Documents with maximum variation from true slope of 1/8-inch in 10-ft.

E. Place and compact bedding aggregate at sides and to the springline of the pipe as per these Specifications.

F. Refer to the Sections 31 00 00 and 31 23 33 of these Specifications for backfill requirements. Do not displace or damage pipe when compacting.

G. Full Lengths of Pipe: Only full lengths of pipe shall be used in the installation except that partial lengths of pipe may be used at the entrance to structures where necessary to obtain a proper connection to the structure.

H. Pipe Entrances to Structures: All pipe entering structures (e.g.: manholes, catch basins, etc.) shall be cut flush with the inside of the structure, and the cut ends of the pipe and surface of the structure shall be properly rounded and finished so that there will be no protrusion, ragged edges, or imperfections that will impede the flow of water or affect the hydraulic characteristics of the installation.

Only full sections of pipe shall be used where entering a structure which will be exposed to view, such as endwalls, headwalls, end sections, etc.

I. Bedding and Backfilling: The type of materials to be used in bedding and backfilling and the method and placement shall conform to the requirements of these Specifications.




J. Protection During Construction: The Contractor shall protect the installation at all times during construction, and movement of construction equipment, vehicles and loads over and or adjacent to any pipe shall be performed at the Contractor's risk.

K. Tolerance: Pipe shall be laid accurately to the line and grade shown on the Contract Documents and/or as approved by the Owner's Engineer. Allowable tolerances shall be 1/2-inch on grade and 1-inch on line in any section of pipe between structures. Deviations from these tolerances shall be a basis for rejection of the line of pipe by the Owner's Engineer. Any line which has been rejected shall be rebuilt to correct line and grade by the Contractor at his own expense.

3.06 INSTALLATION - CATCH BASINS, MANHOLES AND CONTROL STRUCTURES

A. Form bottom of excavation clean and smooth to correct elevation.

B. Form and place cast-in-place concrete base pad, with provision for storm sewer pipe to be placed at proper elevation.

C. Place precast reinforced concrete sections with provision for storm sewer pipe sections at the location and elevation specified on the Contract Documents.

D. Level top surface of each precast concrete shaft sections as assembly progresses.

E. Establish elevations and pipe inverts for inlets and outlets as indicated.

F. Lay brick masonry in running bond with full 3/8-inch mortar joints to receive casting assembly. Level casting frame in grout to receive grated inlet or manhole cover.

3.07 PLACING PRE-CAST MANHOLE BARREL SECTIONS

A. Place base pad to proper elevation and location and trowel top surface level for placement of manhole barrel.

B. Place manhole barrel plumb and level to correct elevations and anchor to base pad.

1. After completion of slab foundation the first joint of manhole barrel shall be lowered into position, grooved end first, and set level and plumb on concrete base. Align and adjust to proper grade prior to placing and forming invert which shall be poured immediately after setting of first section of manhole barrel.

2. Prior to setting subsequent manhole barrel sections, apply primer to tongue and groove ends and allow to set in accordance with manufacturer recommendations. Place "Ram-nek", or equivalent, plastic rope on tongue end. Lower next section into position, and remove excess material from interior of structure. Add additional material on exterior of joint, if necessary, for completely watertight joint.

3.08 PIPE JOINTS

A. Mortar Joints (RCP): After each length of RCP is laid, the lower portion of the bell shall be filled with mortar, and the succeeding length shall be laid in place so that the inner surfaces of




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the abutting lengths are flush. The remainder of the joint shall be completely filled with mortar and sufficient additional mortar used to form a bead around the joint flush with the outside diameter of the bell. The inside of the joint shall be wiped and finished smooth. Joints shall be thoroughly wet before the mortar is placed.

B. Cold Applied Joint Sealer (RCP): Bell and spigot or tongue and groove RCP shall be wiped clean and dry before applying the sealer to the pipe joint. Before the pipes are placed in contact with each other, the spigot end or tongue end of the pope shall be completely covered with an excess of sealer, and then the pipe shall be laid to the established line and grade so that the inside surfaces of abutting pipe are flush.

3.09 INTERFACE WITH EXISTING FACILITIES

A. Requirements: The Contractor shall make all required connections of the proposed drainage facilities into existing drainage facilities, where and as shown on the Contract Documents and/or as approved by the Owner's Engineer.

B. Compliance With Facility Owner Requirements: Connections made into existing drainage facilities shall be performed in accordance with the requirements of the Owner of the facility. The Contractor will be required to comply with all such requirements, including securing of all required permits, and paying the costs thereof. The cost of making the connections in accordance with the requirements of the Owner of the existing facility shall be included in the Contract Sum.

3.10 REMOVAL OF EXISTING UTILITIES

A. The Contractor shall remove and legally dispose of off-site all abandoned utilities encountered during installation of the storm drainage facilities. In particular, all components of the existing combined sewer shall be removed from the site and up to the nearest off-site manhole.

3.11 MODIFICATIONS OF EXISTING STRUCTURES

A. General: The Contractor shall alter, reconstruct and/or convert existing structures where and as shown on the Contract Documents, and/or as approved by the Owner's Engineer. In general, alterations shall be performed with the same type of material used in the original construction unless otherwise indicated on the Contract Documents or approved by the Owner's Engineer.

B. Damage to Existing Installations: The Contractor shall exercise extreme care during such alteration, reconstruction and/or conversions so as not to damage any portions of the structure and/or pipe shown to remain. Any such damage shall be repaired by the Contractor at his own expense and to the satisfaction of the Owner's Engineer and Owner of the damaged structure.

3.12 CLEANING AND REPAIR

A. The Contractor will be required to clean the entire drainage system of all debris and obstructions. This shall include, but not be limited to, removal of all formwork from structures, concrete and mortar droppings, construction debris and dirt. The system shall be thoroughly flushed clean and the Contractor shall furnish all necessary hose, pumps, pipe and other equipment that may be required for this purpose. No debris shall be flushed into existing storm




drains or streams; all debris shall be removed from the system and disposed of in accordance with all governing agencies.

B. After the system has been cleaned, the Contractor shall thoroughly inspect the system along with the Owner’s Engineer and all repairs shown to be necessary shall be promptly made by the Contractor.

C. All Work of cleaning and repair as specified herein shall be performed at the Contractor's expense and to the complete satisfaction of the Owner's Engineer.

3.13 FINAL INSPECTION

Upon completion of the Work and before final acceptance by the Owner, the entire drainage system shall be subject to a final inspection in the presence of the Owner’s Engineer and Township Engineer. The Work shall not be considered as complete until all requirements for line, grade, cleanliness, and workmanship have been completed to the satisfaction of the Owner's Engineer and a Township Engineer.




2531.00 SUBDRAINAGE KCBA Architects 04/29/2021 SECTION 33 4600 - 1

SECTION 33 4600 - SUBDRAINAGE

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes subdrainage systems for the following: 1. Foundations.

B. Related Sections include the following: 1. Division 31 Section "Earth Moving": Excavating, trenching, and backfilling. 2. Division 33 Section "Storm Utility Drainage Piping": Connections to storm drainage

systems. 3. Division 07 Section "Sheet Waterproofing." 4. Division 07 Section “Thermal Insulation”: Drainage insulation board.

1.2 DEFINITIONS

A. PE: Polyethylene.

B. PVC: Polyvinyl chloride.

1.3 SUBMITTALS

A. Product Data: For the following: 1. Perforated pipe. 2. Solid pipe. 3. Drainage panels. 4. Geotextile fabrics.

B. Samples: As follows: 1. Filter Fabric: 6-inch square samples. 2. Aggregate: 5 lb. samples of each type required.


A. Installer Qualifications: Engage an experienced Installer who has completed subdrainage systems similar in material, design, and extent to that indicated for this Project and with a record of successful in-service performance.

1.5 COORDINATION

A. Provide drainage panel materials and installation that are compatible with waterproofing of walls below grade.




PART 2 - PRODUCTS

2.1 HEADERS

A. PE Drainage Tubing and Fittings: AASHTO M 252, Type S, corrugated, with smooth waterway, for coupled joints. 1. Couplings: AASHTO M 252, corrugated, band type, matching tubing and fittings. 2. Applications: Headers for foundation drains.

2.2 DRAINAGE PIPES AND FITTINGS

A. Perforated, PE Pipe and Fittings: ASTM F 405, corrugated, for coupled joints. 1. Couplings: Manufacturer's standard, band type. 2. Size: NPS 4 piping unless otherwise indicated. 3. Applications: Foundation drains.

2.3 MOLDED-SHEET DRAINAGE PANELS

A. Basis-of-Design Product: Hydroduct 220; W.R. Grace & Co., or comparable product by one of the following: 1. American Wick Drain Corporation. 2. Carlisle Coatings & Waterproofing.

B. Description: Prefabricated, composite panels, 36 to 60 inches wide, and manufactured with geotextile facing laminated to molded-plastic drainage core.

C. Drainage Core: Three-dimensional, nonbiodegradable, molded PP or PS. 1. Minimum Compressive Strength: 15,000 lbf/sq. ft. when tested according to

ASTM D 1621. 2. Minimum Flow Rate: 15 gpm per foot when tested according to ASTM D 4716.

D. Geotextile: Nonwoven needle-punched geotextile, manufactured for subsurface drainage, made from polyolefins or polyesters; with elongation greater than 50 percent; complying with the following properties determined according to AASHTO M 288: 1. Apparent Opening Size: No. 70 - No. 100 US sieve. 2. Permittivity: 150 gal/min/sf.

2.4 SOIL MATERIALS

A. Drainage Fill: Clean, evenly graded crushed stone, ASTM D 448, coarse aggregate, Size No. 57, nominal 1 inch to No. 4.

2.5 GEOTEXTILE FABRICS

A. Geotextile Filter Fabric: Woven or nonwoven geotextile filter fabric of PP or polyester fibers, or combination of both. Flow rates range from 110 to 330 gpm per sq. ft. when tested according to ASTM D 4491. Available styles are flat and sock.




PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine surfaces and areas for suitable conditions where subdrainage systems are to be installed.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Engineering Layout: 1. Establish lines, grades and locations of piping and accessories. 2. Maintain grade stakes, batter boards, and similar provisions, to facilitate checking of grades

and lines as work progresses.

3.3 EARTHWORK

A. Excavating, trenching, and backfilling are specified in Division 31 Section "Earth Moving."

3.4 FOUNDATION DRAINAGE INSTALLATION

A. Bottom Fill: Place fill material on subgrade adjacent to bottom of footing after concrete footings have been cured and forms removed. Place and compact impervious fill to dimensions indicated, but not less than 6 inches deep and 12 inches wide.

B. Install vertical drainage panel as follows: 1. Coordinate placement with other drainage materials. 2. Lay perforated drainage pipe at base of footing as described elsewhere in this Specification.

Do not install aggregate. 3. Mark horizontal chalk line on wall at a point 6 inches less than panel width above footing

bottom. Before marking wall, subtract footing width. 4. Separate 4 inches of fabric at beginning of roll and cut away 4 inches of core. Wrap fabric

around end of remaining core. 5. Wrap bottom of panel around drainage pipe. 6. Attach panel to wall at horizontal mark and at beginning of pipe. Place core side of panel

against wall. Use concrete nails with washers through product cylinders to attach panel to wall. Place nails from 2 to 6 inches below top of panel, approximately 48 inches apart. If recommended by manufacturer, use construction adhesives, metal stick pins, or double-sided tape. Do not penetrate waterproofing.

7. If another panel is required on the same row, cut away 4 inches of installed panel core and wrap fabric over new panel.

8. If additional rows of panel are required, overlap lower panel with 4 inches of fabric. 9. Cut panel as necessary to keep top 12 inches below finish grade. 10. For inside corners, bend panel. For outside corners, cut core to provide 3 inches for

overlap. 11. Do not use drainage panels as protection over waterproof membrane, unless otherwise

approved by waterproofing membrane manufacturer.

C. Fill to Grade: Place fill material over drainage panels. Place material in loose-depth layers not exceeding 6 inches. Thoroughly compact each layer. Fill to finish elevations and slope away from building.




3.5 PIPING INSTALLATION

A. Install piping beginning at low points of system, true to grades and alignment indicated, with unbroken continuity of invert. Bed piping with full bearing in filtering material. Install gaskets, seals, sleeves, and couplings according to manufacturer's written instructions and other requirements indicated. 1. Foundation Subdrainage: Install piping pitched down in direction of flow, at a minimum

slope of 0.5 percent and with a minimum cover of 36 inches, unless otherwise indicated. 2. Lay perforated pipe with perforations down. 3. Excavate recesses in trench bottom for bell ends of pipe. Lay pipe with bells facing upslope

and with spigot end entered fully into adjacent bell.

B. Use increasers, reducers, and couplings made for different sizes or materials of pipes and fittings being connected. Reduction of pipe size in direction of flow is prohibited.

C. Install PE piping according to ASTM D 2321.

3.6 PIPE JOINT CONSTRUCTION

A. Join PE pipe, tubing, and fittings with couplings for soiltight joints according to AASHTO's "Standard Specifications for Highway Bridges," Division II, Section 26.4.2.4, "Joint Properties."

B. Join perforated, PE pipe and fittings with couplings for soiltight joints according to AASHTO's "Standard Specifications for Highway Bridges," Division II, Section 26.4.2.4, "Joint Properties"; or according to ASTM D 2321.

C. Special Pipe Couplings: Join piping made of different materials and dimensions with special couplings made for this application. Use couplings that are compatible with and that fit both pipe materials and dimensions.

3.7 CONNECTIONS

A. Drawings indicate general arrangement of piping, fittings, and specialties.

B. Connect low elevations of subdrainage system to solid storm drainage system.

3.8 CLEANING

A. Clear interior of installed piping and structures of dirt and other superfluous material as work progresses. Maintain swab or drag in piping and pull past each joint as it is completed. Place plugs in ends of uncompleted pipe at end of each day or when work stops.




2531.00 ELECTRICAL UNDERGROUND DUCTS AND MANHOLES KCBA Architects 04/29/2021 SECTION 33 71.19 - 1

SECTION 33 7119 - ELECTRICAL UNDERGROUND DUCTS AND MANHOLES

PART 1 GENERAL


A. Nonmetallic duct.

B. Manholes.

1.2 RELATED REQUIREMENTS

A. Section 312323 - Trench Excavation and Backfill for Utilities.

B. Section 033000 - Cast-in-Place Concrete.


A. ASTM C857 - Standard Practice for Minimum Structural Design Loading for Underground Precast Concrete Utility Structures; 2012a.

B. ASTM C858 - Standard Specification for Underground Precast Concrete Utility Structures; 2010e1.

C. ASTM C891 - Standard Practice for Installation of Underground Precast Concrete Utility Structures; 2011.

D. ASTM C1037 - Standard Practice for Inspection of Underground Precast Concrete Utility Structures; 2008.

E. NEMA FB 1 - Fittings, Cast Metal Boxes, and Conduit Bodies for Conduit, Electrical Metallic Tubing, and Cable; National Electrical Manufacturers Association; 2012 (ANSI/NEMA FB 1).

F. NEMA TC 2 - Electrical Polyvinyl Chloride (PVC) Conduit; National Electrical Manufacturers Association; 2003.

G. NEMA TC 3 - Polyvinyl Chloride (PVC) Fittings for Use with Rigid PVC Conduit and Tubing; National Electrical Manufacturers Association; 2004.

H. NEMA TC 6&8 - Polyvinyl Chloride (PVC) Plastic Utilities for Underground Installations; National Electrical Manufacturers Association; 2003.

I. NEMA TC 9 - Fittings for Polyvinyl Chloride (PVC) Plastic Utilities Duct for Underground Installation; National Electrical Manufacturers Association; 2004.

J. NFPA 70 - National Electrical Code; National Fire Protection Association; Most Recent Edition Adopted by Authority Having Jurisdiction, Including All Applicable Amendments and Supplements.

K. UL 651A - Type EB and A Rigid PVC Conduit and HDPE Conduit; Underwriters Laboratories Inc.; Current Edition, Including All Revisions.



KCBA Architects ELECTRICAL UNDERGROUND DUCTS AND MANHOLES 2531.00 SECTION 33 7119 - 2 04/29/2021

L. UL 1684 - Standard For Safety For Reinforced Thermosetting Resin Conduit (RTRC) and Fittings; Underwriters Laboratories Inc.; Current Edition, Including All Revisions.

1.4 SUBMITTALS

A. See Section 013000 - Administrative Requirements, for submittal procedures.

B. Product Data: Provide for nonmetallic conduit and manhole accessories.

C. Shop Drawings: Indicate dimensions, reinforcement, size and locations of openings, and accessory locations for precast manholes.

D. Manufacturer's Instructions: Indicate application conditions and limitations of use stipulated by product testing agency specified under Quality Assurance. Include instructions for storage, handling, protection, examination, preparation, and installation of product.

E. Project Record Documents: Record actual routing and elevations of underground conduit and duct, and locations and sizes of manholes.


A. Conform to requirements of NFPA 70.

B. Manufacturer Qualifications: Company specializing in manufacturing the products specified in this section with minimum three years documented experience and with service facilities within 100 miles (160 km) of Project.

C. Products: Listed and classified by Underwriters Laboratories Inc. as suitable for the purpose specified and indicated.

PART 2 PRODUCTS

2.1 CONDUIT AND DUCT

A. Rigid Plastic Conduit: NEMA TC 2, Schedule 40 PVC, with fittings and conduit bodies to NEMA TC 3.

B. Reinforced Resin Conduit and Fittings: Complying with UL 1684. 1. Joining Method: Tapered bell and spigot joints. 2. Substitutions: See Section 016000 - Product Requirements.

2.2 PRECAST CONCRETE MANHOLES

A. Description: Precast manhole designed in accordance with ASTM C858, comprising modular, interlocking sections complete with accessories.

B. Loading: ASTM C857, Class A-16.




C. Shape: Square.

D. Nominal Inside Dimensions: 4 feet x 6 feet.

E. Inside Depth: 7 feet.

F. Wall Thickness: 6 inches.

G. Base Section: Include 3 inch deep x 14 inch round sump with cast sleeve, and two 1 inch ground rod openings.

H. Top Section: Include 39 inch diameter grooved opening for frame and cover.

I. Riser Casting: 6 inch, with manhole step cast into frame.

J. Frames and Covers: ASTM A48; Class 30B gray cast iron, 27 inch size, machine finished with flat bearing surfaces. Provide cover marked ELECTRIC to indicate utility.

K. Duct Entry Provisions: Window knockouts.

L. Duct Entry Size: 6 inch.

M. Cable Pulling Irons: Use galvanized rod and hardware. Locate opposite each duct entry. Provide watertight seal.

N. Cable Rack Inserts: Minimum load rating of 800 pounds (365 kg). Locate at ____ feet on center.

O. Cable Rack Mounting Channel: 1-1/2 x 3/4 inch steel channel, 48 inch length. Provide cable rack arm mounting slots on 1-1/2 inch centers.

P. Cable Racks: Steel channel, 1-1/2 x 3/4 x 14 inches, with fastener to match mounting channel.

Q. Cable Supports: Porcelain clamps and saddles.

R. Manhole Steps: Polypropylene plastic manhole step with 1/2-inch steel reinforcement.

S. Source Quality Control: Inspect manholes in accordance with ASTM C1037.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify that field measurements are as indicated.

B. Verify routing and termination locations of duct bank prior to excavation for rough-in.

C. Verify locations of manholes prior to excavating for installation.



KCBA Architects ELECTRICAL UNDERGROUND DUCTS AND MANHOLES 2531.00 SECTION 33 7119 - 4 04/29/2021

D. Duct bank routing is shown in approximate locations unless dimensions are indicated. Route as required to complete duct system.

E. Manhole locations are shown in approximate locations unless dimensions are indicated. Locate as required to complete ductbank system.

3.2 DUCT BANK INSTALLATION

A. Install duct to locate top of ductbank at depths as indicated on drawings.

B. Install duct with minimum slope of 4 inches per 100 feet (0.33 percent). Slope duct away from building entrances.

C. Cut duct square using saw or pipe cutter; de-burr cut ends.

D. Insert duct to shoulder of fittings; fasten securely.

E. Install no more than equivalent of three 90-degree bends between pull points.

F. Provide suitable fittings to accommodate expansion and deflection where required.

G. Stagger duct joints vertically in concrete encasement 6 inches minimum.

H. Use suitable separators and chairs installed not greater than 4 feet on centers.

I. Band ducts together before backfilling.

J. Securely anchor duct to prevent movement during concrete placement.

K. Place concrete under provisions of Section 033000. Use mineral pigment to color concrete red.

L. Provide minimum 3 inch concrete cover at bottom, top, and sides of ductbank.

M. Provide two No. 4 steel reinforcing bars in top of bank under paved areas.

N. Provide suitable pull string in each empty duct except sleeves and nipples.

O. Swab duct. Use suitable caps to protect installed duct against entrance of dirt and moisture.

P. Interface installation of underground warning tape with backfilling. Install tape 12 inches below finished surface.

3.3 PRE-CAST MANHOLE INSTALLATION

A. Excavate for manhole installation under the provisions of Section 312316.

B. Install and seal precast sections in accordance with ASTM C891.

C. Install manholes plumb.




D. Use precast neck and shaft sections to bring manhole cover to finished elevation.

E. Attach cable racks to inserts after manhole installation is complete.

F. Backfill manhole excavation under the provisions of Section 312323.
