city of dearborn, michigan contract 3 -- caisson

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CITY OF DEARBORN, MICHIGAN

CONTRACT 3 -- CAISSON ABANDONMENT

JOB No. 10-05-085

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CITY OF DEARBORN

CONTRACT DOCUMENTS FOR CONTRACT 3 -- CAISSON ABANDONMENT

AUGUST 2011

CDM Michigan Inc.

One Woodward Avenue, Suite 1500 Detroit, MI 48226

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CONTENTS Contract 3 Caisson Abandonment

Job No. 10-05-085

“Invitation to Bid” consists of the following sections:

1. Cover Page 2. Title 3. Contents 4. Instructions to Bidders 5. Affidavit of Noncollusion by Contractor 6. Accompanying Sheet 7. Bid Form 8. Special Conditions ........................................................................... Section 100 9. Use of Water…………………… .................................................... Section 125 10. Dust Control…………… ................................................................. Section 126 11. Notification of Police, Fire & School Authority .............................. Section 127 12. Health & Safety Requirements ........................................................ Section 130 13. Coordination of Specifications & Plans ........................................... Section 131 14. Final Clean-Up. ................................................................................ Section 132 15. Liquidated Damages ........................................................................ Section 137 16. General Conditions .............................................................. Section 200 to 225 17. Contract, Lien & Performance Bonds 18. Technical Specifications

01010 Summary of Work 01046 Control of Work 01200 Project Meetings 01300 Submittals 01311 Construction Schedule 01500 Temporary Facilities 01524 Construction Waste Management and Disposal 01600 Delivery, Storage and Handling 02050 Demolition, Repairs and Modifications 02145 Caisson Dewatering, Water Collection and Pretreatment 02230 Caisson Backfill, Cap and Cover Installation 02270 Erosion and Sedimentation Control 02930 Topsoil and Seeding 03600 Grout

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C I T Y O F D E A R B O R N

Home Town of Henry Ford

JOHN B. O’REILLY, JR., MAYOR

INVITATION TO BID FOR

CONTRACT 3 -- CAISSON ABANDONMENT CONTROL NO. ITB-108579

Issue Date: September 12, 2011

Pre-bid Meeting: September 19, 2011, at 10:00 AM, Local Time, at Project Site entering off Rotunda Drive across from Republic Drive at the Rouge River (Attendance not mandatory, but highly recommended).

Pre-bid Question Deadline: September 23, 2011, at noon, Local Time (questions in writing only)

Bid Deadline: October 5, 2011 at 3:00 PM Local Time City of Dearborn Purchasing Division 4500 Maple Street, Third Floor, Suite 5 Dearborn, MI 48126

Purchasing Contact: Mark W. Brace, CPPB Phone: (313) 943-2382 Fax: (313) 943-2420 Email: [email protected]

DESCRIPTION: Bids are being solicited for Contract 3 caisson abandonment, consisting of demolition, backfill, dewatering, placement of clay cap, top soil and seeding.

.This solicitation, along with all Attachments may be downloaded from the Michigan Intergovernmental Trade Network (MITN) website at www.mitn.info. Electronic plans may also be picked up on disk for which there will be no charge; however, a charge of $50.00 will be required if documents are picked up in hard copy form. All bids shall be submitted in hard copy in a sealed envelope. Note: Any and all Addenda issued by the City of Dearborn must be viewed or downloaded from the above listed website.

CITY OF DEARBORN INVITATION TO BID No: ITB-108579

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Bids must be time stamped by the Purchasing Division by the exact date and time indicated above. Late bids will not be accepted. Bids will be opened shortly after the Bid Deadline.

PREFERENCE: When sealed bids are received under Sec. 2-568 of the City of Dearborn’s Code of Ordinances, the following shall apply:

a. The person or business submitting the lowest responsive, responsible bid, according to the requirements of the bidding documents, shall be deemed the lowest bidder. If the lowest bidder is not a Dearborn-based business, any Dearborn-based business with a bid within 5% of the lowest bid shall be deemed the lowest bidder if it agrees to reduce its bid to match the bid of the lowest bidder. A lowered bid by a Dearborn-based business which is premised upon, in whole or in part, changes to or variances to the bid specifications, contract requirements, or scope of work, shall be considered non-responsible and will not be considered. Dearborn-based business means the physical and economic relationship to Dearborn determined by a verifiable business address (not a PO Box) within the corporate boundaries of the City of Dearborn, and the payment of city personal property taxes for not less than one (1) year immediately prior to the date of the bid submittal.

b. If such a Dearborn-based business refuses to reduce its bid to match the lowest bid, then the next lowest responsive and responsible Dearborn-based business with a bid within 5% of the lowest bid shall be deemed the lowest bidder, if it agrees to reduce its bid to match the bid of the lowest bidder.

c. If no responsive and responsible Dearborn-based business within 5% of the lowest bid agrees to reduce its bid, then the contract shall be awarded to the person or business with the lowest, most responsive and responsible bid.

d. No contract awarded pursuant to this section shall be sublet in any matter that permits 50% of more of the dollar value of the contract to be performed by a subcontractor or subcontractors who do not meet the definition of “Dearborn-based.”

e. In no event shall a Dearborn-based business be awarded a contract if the business is not current on real and personal property taxes owed to the City of Dearborn.


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INSTRUCTIONS TO BIDDERS

All bids shall be properly sealed and shall be on the forms provided.

Bids shall be accompanied by a Certified Check, Cashier's Check or Bid Bond (COMPANY CHE CK OR MONEY OR DER WILL NOT B E ACCEPT ABLE) in an amount of not less than 5% of the bid price as security for acceptance of the job. In case the successful bidder fails to enter into the contract and furnish satisfactory bonds within the time specified, said security will be forfeited to the City as liquidated damages for delay caused the City.

Each bidder shall sign the bid giving his name, address and status, that is, whether an individual, partnership or corporation. The bidder shall familiarize himself with the plans and specifications and make his personal examination of the site and facilities available and with the conditions to be encountered. Each bidder must submit 3 sets of bids when they submit their bid, one (1) original plus two (2) exact copies.

Bids are solicited only from those who will start work promptly after the award is made.

The Contract is to be computed on the basis of the unit prices and/or lump sum prices submitted in the bid. All prices shall be given in words and figures and in case of discrepancy the amount stated in words shall govern.

No unsolicited alternates will be considered in awarding the Contract, and the inclusion by the bidder of such alternates will be considered informal and the bid may be rejected.

The City reserves the right to accept any bid or to reject any or all bids; also to waive formal defects in bids should it deem it for the best interests of the City to do so.

The successful bidder will be required to furnish two bonds each on the forms provided as follows:

A Performance Bond in an amount not less than 100% of the contract price in favor of the City of Dearborn conditioned upon the faithful performance of the contract and completion on or before the date specified.


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INSTRUCTIONS TO BIDDERS (Continued)

A Labor and Material Bond (Lien Bond) in an amount of not less than 100% of the contract price for the protection of sub-contractors, material suppliers and labor.

The successful bidder will be required to furnish insurance as specified.

The successful bidder will be required to bear all expense of material tests required by the specifications.

The bid deposit of all except the two (2) lowest bidders will be returned within 72 hours after opening of bids. The bid deposit of the second low bidder will be returned within 48 hours after the Dearborn City Council has awarded a contract. The bid deposit of the successful bidder will be returned within 48 hours after same has executed the contract.

Only those items listed in the Bid Form are pay items, and any other work called for either by plans or specifications is classed as incidental and the cost shall be included in other prices.

No bid shall be withdrawn for a period of 60 days after receiving of bids.

Bidders will note the enclosed form of "AFFIDAVIT OF NONCOLLUSION BY CONTRACTOR" which must be executed by each bidder in submitting a bid.


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AFFIDAVIT OF NONCOLLUSION BY CONTRACTOR

STATE OF ________________________) §

COUNTY OF ______________________)

_________________________________________, being first duly sworn and deposed and says

that he is _________________________________of ___________________________________ Title Name of Company

who submits herewith to the City of Dearborn a bid,

That all statements of fact in such bid are true;

That such bid was not made in the interest of or on the behalf of any undisclosed person, partnership, company, association, organization or corporation;

That such bid is genuine and not collusive or sham;

That such bidder has not, directly or indirectly by agreement, communication or conference with anyone attempted to induce action prejudicial to the interest of the City of Dearborn, or of any other bidder or anyone else interested in the proposed contract; and further

That prior to the public opening and reading of bids, said bidder:

a. Did not directly or indirectly, induce or solicit anyone else to submit a false or sham bid;

b. Did not, directly or indirectly, collude, conspire, connive or agree with anyone else that said bidder or anyone else would submit a false or sham bid, or that anyone should refrain from bidding or withdraw his bid;

c. Did not, in any manner, directly or indirectly seek by agreement, communication or conference with anyone to raise or fix the bid price of said bidder or of anyone else, or to raise or fix any overhead profit or cost element of his bid price, or that of anyone else;

d. Did not, directly or indirectly, submit his bid price or any breakdown thereof, or the contents thereof, or divulge information or data relative thereto, to any corporation, partnership, company, association, organization, bid depository, or to any member or agent thereof, or to any individual or group of individuals, except to any person or persons who have a partnership or other financial interest with said bidder in his business.

Accompanying this bid is a Certified Check, Cashier's Check or Bid Bond (COMPANY CHECK OR MONEY ORDER WILL NOT BE ACCEPTABLE) in the amount of 5% of the total bid payable to the City of Dearborn, Michigan, which it is agreed, will be forfeited to said City of Dearborn, if the undersigned fails to enter into a contract in conformity with the form of contract incorporated herein and furnish bonds as specified.


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In submitting this bid it is understood that the right is reserved by the City of Dearborn, Michigan, to reject any or all bids. It is agreed that this bid may not be withdrawn for sixty (60) days from the opening thereof.

hereby declare that will execute a formal contract with the City of Dearborn, Michigan according to the forms attached hereto, and will furnish the required bonds within ten (10) days after a formal contract is tendered to for signature, will begin construction twenty (20) days from the date said formal contract is delivered to .

The undersigned agrees that if the bid made herein is accepted, he will satisfactorily perform and complete all of the work and meet all of the requirements and obligations imposed upon him by the contract, including the plans, specifications and general conditions, on or before June 1, 2012.

LIQUIDATED DAMAGES, as specified in the Special Conditions, shall apply to above date.

Bidder will identify business entity as individual, or if doing business under assumed name, indicate assumed name, partnership (naming partners), corporation, (foreign or domestic) and indicate official capacity of person executing Bid..

The bid shall be legally signed and the complete address of the Bidder given thereon, including zip code.

DATE FIRM NAME ADDRESS

If corporation, partnership or assumed name

PHONE CELL

Signature of person executing bid and official capacity

EMAIL

FAX

Names of principal officers and designate official capacity of each

If partnership or assumed name, indicate names of owners


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Contract 3 -- Caisson Abandonment Project

Bid Form

Furnish all labor, materials, and equipment to perform and complete all work as specified and shown on the Drawings.

Lump Sum

(Amount written in words)

$ ________________________ (Amount written in numbers)

CITY OF DEARBORN SPECIAL CONDITIONS

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SPECIAL CONDITIONS

100. SPECIAL CONDITIONS

100.1 DEFINITIONS

100.11 The term “City” or “Party of the First Part” where used in these plans and specifications shall mean the City of Dearborn, Wayne County, Michigan, or its agent.

100.12 The term “Engineer” where used shall mean the City Engineer, or his authorized representative.

100.13 The term “Contractor” where used shall mean the Party of the Second Part entering into the contract with the City of Dearborn or its agents.

100.14 The “Invitation to Bid” includes all the documents listed in the Contents Page of the Invitation to Bid.

100.15 The term “A.S.T.M.” shall mean the American Society for Testing Materials.

100.16 The term “D.W.S.D.” shall mean City of Detroit Water & Sewerage Department.

100.17 The term “W.C.D.P.S.” shall mean Wayne County Department of Public Services.

100.18 The term “A.W.W.A.” shall mean American Water Works Association.

100.19 The term “A.A.S.H.T.O.” shall mean American Association of State Highway & Transportation Officials.

100.20 The term “M.D.O.T.” shall mean Michigan Department of Transportation.

100.21 The term “Bidder” shall mean party submitting this sealed Bid for the project.

100.22 The term “Bid” shall mean Bidder’s written offer to perform work at quoted price for the duration of contract with an acknowledgement that no partial payment to be made for the storage of material nor no additional payment to be made for an increase in materials and labor costs.

100.23 The term “day” shall mean calendar day.

100.2 GENERAL:

The Contractor shall furnish all materials, equipment, labor and supervision, and shall provide all other means that may be necessary to complete all the work in conformity in all respects to the requirements as set forth in the contract documents. All


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materials used for the project shall be new, manufactured by authorized companies meeting the requirements and applicable ASTM and AWWA standards.

The Contractor shall make its own arrangement for the staging area for the storage of materials.

The Contractor shall not stockpile, store and/or place excavated materials on public streets or public properties. Prior authorization from private property owners is required and approval shall be submitted to the Engineer prior to using private properties within the City of Dearborn.

Backfill material to be used for the project shall be collected and transported from a state or county approved pit only. Contractor shall not use excavated materials for backfill even if the excavated material meets backfilling specifications.

All the waste materials and removed materials shall be hauled away from the project site and disposed of.

Payment will be made based on the certified as-built quantities as listed in the “Schedule of Values” as specified in Section 01300. No partial advance payment will be made for purchasing and storing materials in advance nor will additional payment be made for the storage of materials.

125. USE OF WATER:

125.1 See “Rules for Water Use”, at the end of the Special Conditions, for the permit requirements and procedure for the Use of Water.

126. DUST CONTROL:

126.1 The Contractor shall take all steps necessary for the alleviation or prevention of dust nuisance caused or resulting from his operations and shall apply water or duct palliative or both, on a daily basis at no extra cost to the City.

127. NOTIFICATION OF POLICE, FIRE AND SCHOOL AUTHORITY:

127.1 The Contractor shall contact the following, 48 hours prior to any road closure:

Dearborn Police Department: 943-2275 or 943-2200 Dearborn Fire Department: 943-2277 or 943-2100 Dearborn Department of Public Works: 943-2075 or 943-2145


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127.2 No construction work shall be conducted on Sundays and during the following public holidays:

New Year's Day Martin Luther King Day Presidents' Day/Washington's Birthday Good Friday Memorial Day Independence Day Labor Day Veteran's Day Thanksgiving Day after Thanksgiving Last work day before Christmas Christmas Day Last work day before New Year’s Day

127.3 The Contractor must have prior approval from the Engineer for construction work on Sundays or on any of the above listed public holidays. Any inspection charges associated with such work will be paid for by the Contractor in advance.

130. HEALTH AND SAFETY REQUIREMENTS:

130.1 The Contractor shall comply with all federal, state, and local laws and regulations governing construction methods and the furnishing and use of all safeguards, safety devices, protective equipment and pollution controls. It shall be the Contractor’s responsibility to protect the life and health of all personnel on the job, the safety and health of the public and to protect property during the construction of the project.

131. COORDINATION OF SPECIFICATIONS AND PLANS:

131.1 In case of discrepancy, figured dimensions shall govern over scaled dimensions and the parts of the contract will prevail over all other parts in the following order:

Special Conditions - Sections 100, 125, 126, 127, 130, 131, 132, 137

Project Plans and Drawings

General Conditions Sections 200 thru 225 and Technical Specifications

131.2 The Contractor shall not take advantage of any apparent error or omission in the plans, specification or other contract documents, and if any inconsistency, omission or conflict is discovered in the plans, specifications, or other contract documents, or if in any place the meaning of the plans, specifications or other contract documents, is obscure, uncertain or in dispute, the Contractor shall notify the Engineer immediately who will decide as to the true intent and make the final determination.


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132. FINAL CLEAN-UP:

132.1 All work in this section shall be incidental to contract work.

132.2 The work shall not be considered as completed nor will final payment be made until the area has been restored to a neat, orderly appearance acceptable to the Engineer.

132.3 Equipment, excess material, rubbish, etc., resulting from the Contractor's operation must be removed from the site.

132.4 The Contractor shall clean all debris, asphalt, concrete and dirt dropped into the drainage structure from his operations.

137. LIQUIDATED DAMAGES:

It is mutually understood and agreed that time is of the essence of this contract. In the event the work is not completed by the final contract completion date as extended, the Contractor shall pay the City damages. Inasmuch as the amount of such damages will be extremely difficult to ascertain, the Contractor agrees to pay the City the applicable sum stated in the Schedule of Liquidated Damages as set forth below (see next page). This schedule shall apply for each and every calendar day that the time consumed in said performance and completion extends beyond the final contract completion date, as extended.

The Contractor shall complete the work even after the completion date or dates as extended within the scope of this contract and such completion shall in no way operate as a waiver on the part of the City or any of its rights under this contract.

SCHEDULE OF LIQUIDATED DAMAGES Original Contract

Amount

From More Than

Including

Liquidated Damages Per Calendar Day

$ 0 $ 25,000 $ 75 25,000 50,000 125 50,000 100,000 200 100,000 500,000 350 500,000 1,000,000 700 1,000,000 2,000,000 1,000 $2,000,000 and above 1,250

On contracts which have internal "critical operation" date or dates, as specified in the bid, prior to the final completion date, the Contractor will be assessed liquidated damages for each


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calendar day beyond the "critical operation" date. These damages will be deducted in the same manner and in accordance with the same schedule outlined above for failure to complete the project on time. The liquidated damages above shall not be cumulative nor at any given time shall the liquidated damages exceed the above schedule.


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CITY OF DEARBORN GENERAL CONDITIONS

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GENERAL CONDITIONS

200. GENERAL CONDITIONS

200.1 DEFINITIONS

200.11 The term “City” or “Party of the First Part” where used in these plans and specifications shall mean the City of Dearborn, Wayne County, Michigan, or its agent.

200.12 The term “Engineer” where used shall mean the City Engineer, or his authorized representative.

200.13 The term “Contractor” where used shall mean the Party of the Second Part entering into the contract with the City of Dearborn or its agents.

200.14 The “Invitation to Bid” includes all the documents listed in the Contents Page of the Invitation to Bid.

200.15 The term “A.S.T.M.” shall mean the American Society for Testing Materials.

200.16 The term “D.W.S.D.” shall mean City of Detroit Water & Sewerage Department.

200.17 The term “W.C.D.P.S.” shall mean Wayne County Department of Public Services.

200.18 The term “A.W.W.A.” shall mean American Water Works Association.

200.19 The term “A.A.S.H.T.O.” shall mean American Association of State Highway & Transportation Officials.

200.20 The term “M.D.O.T.” shall mean Michigan Department of Transportation.

200.21 The term “Bidder” shall mean party submitting this sealed Bid for the project.

200.22 The term “Bid” shall mean Bidder’s written offer to perform work at quoted price for the duration of contract with an acknowledgement that no partial payment to be made for the storage of material nor no additional payment to be made for an increase in materials and labor costs.

200.23 The term “Day” shall mean calendar day.

201. PLANS

201.1 Plans consist of 9 standard Drawings dated August 18, 2011.

202. BONDS

202.1 The Contractor shall execute two surety bonds, each for the full amount of the contract, on the attached forms provided, it being mutually understood and agreed that in case changes are required, such changes shall not modify, discharge or release said bonds.


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203. CONTRACT

203.1 The contract shall consist of standard and detailed drawings consisting of 9 standard Drawings dated August 18, 2011, Invitation to Bid (ITB) document, Contractor’s Bid, Affidavit of Noncollusion signed by the Contractor, Accompanying Sheet signed by the Contractor, Addenda, Contractor’s Insurance, executed copy of the Contract page, Lien Bond and Performance Bond.

204. LIABILITY OF CONTRACTOR

204.1 The Contractor shall take all responsibility for the work and shall provide barricades, watchmen, lights and take all precautions for preventing injuries to persons and property on or about the work; shall bear all losses resulting to him on account of the amount or character of the work or because the nature of the ground in which the work is done is different from that which was estimated or expected, or on account of the weather, floods, elements, or other causes, and he shall assume the defense of and shall indemnify and save harmless the City and its individual officers and agents from all claims relating to labor, equipment and materials furnished for the work, inventions, patents and patent rights used in doing or incorporated in the work, also injuries to any person or property received or sustained by or from any and all acts of the Contractor, his agents or employees, or of any sub-contractor, his agents or employees.

204.2 The mention of any specific duty or liability of the Contractor in any part of the specifications shall not be construed as limitation or restriction upon any general liability or duty imposed upon the Contractor by the specifications.

204.3 Claims Handling

Claims for personal injury or property damage that arise out of this contract or in connection with this project will be submitted to the Contractor’s insurance carrier of record for their handling. At no time will the Contractor or subcontractor be allowed to adjust claims or incidents for property damage or bodily injury that arise out of this Contract. All claims submitted to the insurance company of record shall be resolved within 30 days of submission. If the Claim is not resolved within that 30-day time frame, the amount of the claim will be withheld from the Contract.

205. INSURANCE

205.1 THE CITY OF DEARBORN SHALL BE INCLUDED AS AN ADDITIONAL INSURED WITH RESPECT TO ALL INSURANCE REQUIRED UNDER SECTION 205 ENTITLED “INSURANCE”.

205.2 The insurance certificates required herein form a part of this Contract and until such required certificates are delivered to the City of Dearborn and approved by the Corporation Counsel, no valid contract shall exist between the parties hereto.

205.3 THE CONTRACTOR SHALL FURNISH THREE (3) CERTIFIED COPIES OF ALL CERTIFICATES OF INSURANCE POLICIES REQUESTED HEREIN. The Contractor must furnish certificates for the following insurance:


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1. COMMERCIAL GENERAL LIABILITY COVERAGE:

Commercial General Liability Coverage including products/completed operations, contractual liability, and personal injury. This insurance shall be on a commercial insurance, occurrence form. The certificate must contain, as an endorsement, the following language: “The City of Dearborn, Michigan, its elected officials, officers, employees, boards, commissions, authorities, voluntary associations, and any other units operating under the jurisdiction of the City and within appointment of its operating budget including the City of Dearborn are named as additional insured and said coverage shall be considered to be the primary coverage rather than any policies and insurance or self-insurance retention owned or maintained by the City of Dearborn”. The limit amount for this insurance shall be not less than $1,000,000 per occurrence and $2,000,000 aggregate.

2. WORKERS COMPENSATION COVERAGE:

At a minimum, Workers Compensation Insurance as required by State of Michigan law, Michigan statutory coverage. Employers Liability limits of $500,000 each accident, $500,000 disease policy limit and $500,000 disease each employee.

3. AUTOMOBILE LIABILITY COVERAGE:

The automobile Liability Coverage shall cover all owned, non-owned and hired automobiles with a limit of not less than $1,000,000 combined single limit each accident.

4. EXCESS INSURANCE:

Excess/Umbrella coverage in the amount of $1,000,000.

5. The insurance carrier must have an A.M. Best Company rating of A-, VII or better.

6. A certificate of insurance must be received in the Purchasing Office of the City of Dearborn within ten (10) calendar days of receiving Notice of Award and no less than five (5) days prior to commencement of work.

7. Cancellation clause of insurance shall identify not less than thirty (30) days.

8. The City reserves the right to require complete, certified copies of all required insurance policies at any time.

205.4 In the event of a joint venture, single policies covering the joint venture entity shall be supplied.

205.5 The City Clerk shall be notified ten (10) days prior to cancellation, expiration or alteration of Policy.

206. WORK INCLUDED

206.1 The unit prices or lump sum set forth in the Schedule of Values shall cover everything,


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including all labor and materials necessary for performing and completing all work required as contemplated by the plans and specifications.

206.2 The work shall be executed in strict conformity with the contract drawings and specifications, and the Contractor shall do no work without proper drawings and instructions. The Engineer will furnish to the Contractor, free of charge all copies of drawings and specifications reasonably necessary for the execution of the work.

206.3 The Contractor shall keep on the work, in good order and available to the Engineer and to his representatives, one copy of all drawings and specifications approved or authenticated by the Engineer.

206.4 After the award of the contract, the Engineer may furnish, by supplemental drawings or otherwise, additional instructions, full-sized, additional or revised details as may be required for construction purposes. The Contractor shall notify the Engineer in writing when such supplemental drawings or instructions will be required for the orderly progress of the various portions of the work, sufficiently in advance to permit their preparation, and shall make no claim for damages for delays that may result from his failure to so notify the Engineer.

207. CONTRACTOR'S PLANS, SAMPLES AND DATA (See Also Section 01300 Submittals)

207.1 The Contractor shall submit for approval, with such promptness as to cause no delay in his work or in that of the City, duplicate copies of all shop, assembly, or erection drawings of materials or equipment requiring shop or field fabrication, assembly, or erection, together with other information in such detail as will permit the Engineer to judge whether the proposed material, equipment, or arrangement will meet the requirements of the contract drawings and specifications.

207.2 The size, general character and arrangement of all such drawings shall be subject to the approval of the Engineer. The Contractor, if requested to do so, shall confer with the Engineer regarding same before commencing their preparation.

207.3 The Contractor shall thoroughly check all such drawings, giving special attention to measurements, sizes of members, materials and details in order to satisfy himself that they conform to the contract drawings and specifications. Drawings found to be inaccurate, incomplete, or otherwise in error are to be returned to the appropriate subcontractor or material supplier for correction before submitting them to the Engineer.

207.4 After the Contractor has checked such drawings, he shall place thereon the date of approval and his signature. The Contractor shall them submit them to the Engineer for approval.

207.5 If the drawings submitted by the Contractor are found to conform with the contract drawings and specifications, the Contractor will be so advised in writing by the Engineer and notified of the number of additional prints of each drawing that will be required for proper distribution. In general, not less than six (6) prints will be required for the City's use. The Contractor shall promptly furnish to the Engineer without charge these additional prints plus as many more as the Contractor may require. After these prints have been received, the Engineer will place his approval thereon and return one or more approved prints to the Contractor as required.

207.6 If the drawings submitted by the Contractor do not meet the Engineer's approval, one (1) print


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of each drawing will be returned to the Contractor by the Engineer, marked and noted with the corrections or changes that may be required. All drawings so returned shall be revised or corrected as indicated and resubmitted by the Contractor as before.

207.7 Any work which the Contractor may perform on any material, structure, or equipment covered by such drawings, prior to the approval thereof by the Engineer shall be at his own risk. The City will not be responsible for any expense incurred by the Contractor in making changes in structures, materials, or equipment in order to make them conform to the drawings as finally approved, nor shall any claim for such damages be made or allowed. No alteration shall be made by the Contractor in any drawing after it has been approved, except with the written consent of the Engineer.

207.8 The Contractor shall furnish the Engineer with a tabulation of the equipment and materials for which drawings may not be required, showing the name of the manufacturer, the catalog number, and the type of equipment proposed, together with such dimensions, specifications, samples or other data as may be required to permit intelligent judgment of the acceptability of the same.

207.9 It shall be understood by the Contractor that in submitting drawings, lists, specifications, samples, and other data, a reasonable amount of time will be necessary for their examination by the Engineer before they can be approved or returned for correction. The Contractor shall make no claim for extra cost, damage, or extension of time because of his failure to submit said drawings, lists, specifications, samples and other data in sufficient time to permit their examination, correction when necessary, and final approval prior to their need in the fabrication of material or in actual construction, assembly or erection.

208. ERRORS AND CORRECTIONS IN DRAWINGS AND SPECIFICATIONS

208.1 The Contractor shall examine and check all drawings and specifications furnished by the City and by himself as to dimensions, quantities, and coordination with other parts of the work on this or related contracts and he shall promptly notify the Engineer of any and all errors, omissions, or discrepancies he may discover.

208.2 The Contractor shall not be allowed to take advantage of any such errors, omissions, or discrepancies, as full instructions will be furnished by the Engineer, and the Contractor shall carry out such instructions as if originally specified. In no case shall the Contractor proceed with the work in uncertainty and any work done by the Contractor after the discovery of any such errors, omissions, or discrepancies, will be at the Contractor's risk and responsibility until he is authorized by the Engineer to proceed. The work is to be made complete and according to the intention of the contract drawings and specifications, any minor omissions in the contract drawings and specifications notwithstanding.

209. CONTRACTOR'S UNDERSTANDING

209.1 It is understood and agreed that the Contractor has, by careful examination, satisfied himself as to the nature and location of the work, the character of equipment and facilities needed preliminary to and during the prosecution of the work, the general and local conditions, and all other matters which can in any way affect the work under this contract. The Contractor agrees that he shall not claim nor receive any damages, extra compensation, or extension of time for completion, or any other concession because of any misunderstanding or misinterpretation of this contract, or because of ignorance of existing conditions, or of failure to anticipate developments


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which may occur as the result of existing conditions, or of difficulties which may be encountered in the execution of the work. No verbal agreement of conversation with any officer or employee of the City, either before or after the execution of this contract, shall affect or modify any of the terms or obligations herein contained.

210. LAWS AND REGULATIONS AND PERMITS

210.1 The Contractor shall keep himself fully informed of all laws and municipal ordinances and regulations in any manner affecting those engaged or employed in the work and all orders and decrees of bodies or tribunals having any jurisdiction or authority over the same. He shall, at all times, observe and comply with all such existing and future laws, ordinances, regulations, orders and decrees, which become effective during the progress of the work; and shall protect and indemnify the City and its officers and agents against any claim or liability arising from or based on the violations of any such law, ordinance, regulation, order or decree, whether by himself or his employees.

210.2 The Contractor will be required to pay license fees as required by the Ordinances of the City and shall comply with all provisions of said ordinances.

210.3 The Contractor shall secure all necessary permits covering his operations including permits from the public authorities having jurisdiction over the streets or other public properties in which the work is located and the improvements therein. The bidder shall ascertain the amount of any charges, which he may have to pay, including fees or inspection charges required by such authorities, including any department of Wayne County, the City of Detroit, and the State of Michigan, and shall include the cost thereof in his bid.

210.4 The Contractor shall ascertain the requirements of the said authorities and shall include in his bid all costs of restoring existing improvements, including sidewalks, pavements and landscaping, to the satisfaction of the authority having jurisdiction in each case.

211. ASSIGNMENT OF CONTRACT

211.1 The Contractor shall not assign this contract or any part hereof without the written consent of the City. No assignment shall be valid unless it shall contain a provision that the funds to be paid to the assignee under the assignment are subject to a prior lien for services rendered or materials supplied for the performance of the work in favor of all persons, firms or corporations rendering such services or materials.

211.2 Sub-Contracting The Contractor shall not sub-contract any work to be performed under this contract without the written consent of the City. If the Contractor shall sublet any part hereof, the Contractor shall be as fully responsible to the City for acts and omissions of his sub-Contractor as he is for the acts and omissions of persons directly employed by himself.

212. WORKING CONDITIONS

212.1 The Contractor shall have sole responsibility for finding and obtaining a site for equipment and material storage and staging and for obtaining a permit or variance for such use if any is required. Unless otherwise stated in the Special Conditions, the City shall not provide any right of way for use by the Contractor. The Contractor shall be responsible for conditions at the work site, shall confine his operations to such work site and any infringement on private or public property


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shall be at the Contractor's sole expense and risk, with the Contractor accepting all liability for such expense and risk.

213. AUTHORITY

213.1 No agent of the City shall have power to revoke, alter, enlarge or relax the stipulations or requirements of these plans and specifications except insofar as such authority may be specifically conferred by the specifications themselves without the formal authorization to do so, conferred by the contract of which the specifications are a part or by ordinance, resolution or other official action by the City.

213.2 The work shall be carried on under the personal supervision of the Contractor or his properly authorized representative, who shall have full and responsible charge of the work with power to receive orders and carry out instructions.

213.3 The Engineer shall have general supervision and direction of the work. He has authority to stop the work whenever it may be necessary to insure the proper execution of the contract. He shall also have the authority to reject all work and materials, which do not conform to the specifications, and to clarify questions which arise in the execution of the work. Any refusal on the part of the Contractor or his authorized representative to carry out any of the aforementioned orders of the Engineer or his authorized agent shall be deemed a violation of this contract.

214. EMPLOYMENT OF LABOR

214.1 Any person employed by the Contractor refusing or neglecting to obey the directions or orders of the Engineer in anything relating to the work or appearing to be incompetent, disorderly or unfaithful shall be discharged and shall not be re-employed on the work, and such discharge shall not be used as the basis of any claim for damages against the City.

215. PROGRESS OF THE WORK

215.1 Materials shall be ordered and work shall begin on the ground within twenty days after the contract is signed, unless otherwise stated. Work shall be prosecuted diligently thereafter and at such a rate as to insure its completion within the time specified.

215.2 Construction Schedule Immediately after receipt of the signed contract the Contractor shall deliver to the Engineer, for his approval, a Progress Schedule in a form satisfactory to the Engineer showing the proposed dates of commencement and completion of each of the various subdivisions of work required under this contract. This schedule shall in no case show any extension of time for work under this contract beyond the time of completion established in this contract. See Section 01311.

215.21 Whenever the Contractor deems it, in order to maintain the progress of the work in accordance with the Progress Schedule or to complete the work within the time specified in this contract, to work after regular hours or on Saturdays, Sundays, or holidays, the Contractor shall do so at no additional cost to the City, and only upon the specific approval of the Engineer.

215.22 Satisfactory progress in construction of the work under this Contract, in accordance with the approved Schedule of Values, shall be a condition precedent to progress payments


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otherwise due under this contract. In case the Contractor shall fail to accomplish such progress, the City may withhold such payments as may be otherwise due until the Contractor shall have made satisfactory showing that such failure to accomplish progress is remedied so that the work will be completed in the time specified in this contract.

215.3 Surveys, Location Points, Bench Marks Principal location points and bench marks shall be given by the Engineer at such times as he may deem necessary, or if the Contractor shall be in need of the Engineer's services, he shall notify the Engineer twenty-four (24) hours in advance of such need.

215.31 The Contractor shall mark all points given by the Engineer by stakes or other suitable means and shall protect and maintain the same and locate all work accurately therefrom. Stakes or other points damaged or removed by Contractor shall be replaced at the expense of the Contractor if needed for the work.

215.4 Inspection and Rejection of Work The material used and work done shall at all times and stages of construction be subject to the inspection of the Engineer or his representative, but such inspection shall not relieve the Contractor from any obligation to furnish materials and perform the work strictly in accordance with these specifications. Work not so constructed shall be removed and replaced by the Contractor at his own expense.

215.41 The Engineer shall have access to the work at all times and the Contractor shall cooperate with him and furnish such assistance as may be required in order to facilitate inspection and for the purpose of laying out the work and establishing lines.

215.42 The Engineer has the right to have removed by the Contractor such portion of the work as he may deem necessary for the discovery of improper work or material. Any such work or material so found must be replaced in proper condition by the Contractor at his own expense. If found to be properly done and of specified materials, it shall be restored by the Contractor at the expense of the City. Any work, which during its progress and before final acceptance may become damaged from any cause, shall be replaced by satisfactory work at the Contractor's expense.

215.5 The Contractor shall clean and restore the work site, any storage or staging areas, and any other areas including public rights of way affected by the work, leaving all such areas in a neat and clean condition on a daily, weekly or such other basis as is directed by the City Engineer or as required by state or local law, or rule, or permit requirement and at or before completion of work. All buildings, plants, structures and appurtenances, scaffolding, rubbish, dirt and leftover materials from or related to the work shall be removed. All costs of such site cleanup and removal shall be included in the contract price and the Contractor shall not make and shall not be entitled to any extra, additional or separate compensation for compliance with this requirement.

215.6 Time of Completion The time allowed for completion of the work contemplated in this contract shall be as stated in the Bid and in the time allowed for all construction and cleanup and any other pertinent operation required before final and formal acceptance by the City.

215.61 All days on which work is suspended by order of the Engineer or in accordance with these specifications shall automatically extend the time for completion and equal number of days. No other extension of time shall be allowed except upon formal consent of the Engineer. Days on which the work is suspended because of weather conditions shall not be


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considered as extending the time of completion.

215.62 It is distinctly understood and agreed to by the parties hereto that the time specified for the completion is the essence of this contract and the Contractor shall not be entitled to claim performance of this contract unless the work is satisfactorily completed in every respect within the time specified. The Contractor shall not be entitled to any costs or damages for any delays.

215.63 The City reserves the right to use and/or occupy portions of the completed structures, which may be completed in accordance with the plans, and other portions of these specifications prior to final acceptance. Such use shall in no way be construed as final acceptance of the work nor shall it release the Contractor or any of his sureties of any liability defined elsewhere herein.

215.7 Injunctions Should the party of the first part be prohibited or enjoined from proceeding with the work, or from authorizing its prosecution, either before or after its commencement by reason of any litigation or otherwise, the Contractor shall not be entitled to any damages by reason of the delays caused thereby, except for the actual cost of protecting such work as he may have underway, or for the cost of removal and replacement of such tools, plant and materials as he may have delivered upon the work such as to be determined by the Engineer. Nor shall the Contractor be permitted to withdraw from this agreement until such delays as aforesaid aggregate one year, but the time of completion shall be extended for such time, as in the judgment of the Engineer, shall be equal to the aggregate delay.

215.8 Forfeiture of Contract If the work to be done under this contract shall be abandoned by the Contractor, or if at any time in the judgment of the City, the Contractor shall fail to prosecute the work at a reasonable rate of progress, or to comply with all or any of the terms and requirements herein set forth and such action shall not affect the right of the City to recover damages resulting from such failure, then the City has a right to take possession of the work, including the Contractor's plant, supplies, tools and materials at any time after having notified the Contractor in writing to discontinue the work under this contract for said cause or causes. Upon receiving such notice, the Contractor shall, upon demand, immediately give the party of the first part, safe and peaceful possession of the work including the plans, and shall then cease to have any control over any portion of the men employed thereon.

215.81 The party of the first part may then proceed to complete the work herein specified by contract or otherwise and the entire cost of the same shall be charged to the Contractor and deducted from any sum or sums due or to become due under this contract, the excess cost, if any, shall be paid by the Contractor or his sureties to said party of the first part.

216. WAIVER OF CONTRACT

216.1 Neither the acceptance by the City or its Engineer or other agents, nor any order, measurements or certificate by the Engineer, nor any order by the City for the payment of money, nor any payment for or acceptance of the whole or any part of the work by the Engineer, or the City, nor any extension of time, nor any possession taken by the City or its agents, shall operate as a waiver for any portion of the contract and any power therein reserved to the City or any right to damages therein provided, nor shall any waiver of any breach of contract be held to be a waiver of any subsequent breach.


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217. INTERPRETATION

217.1 Should any question arise as to the intent of any parts of the plans and specifications, the interpretation of the Engineer shall be final. However, it is not intended to deprive the Contractor of his legal rights or of recourse to the courts.

218. PAYMENT

218.1 The City will pay the Contractor upon completion of the payment milestones listed in the Schedule of Values.

218.11 The Engineer will submit written requests for progress payments on behalf of the Contractor. Where required by the specifications or agreed to in writing by the City, progress payments will be made monthly or at longer intervals, at the option of the City, for work in place and completed. Unless approved by the City, progress payments shall not be made for materials furnished prior to being incorporated in the finished work. Progress payments shall not be payable unless the project or work is making satisfactory progress. Progress payment requests shall be submitted to the City Engineer with supporting documentation attached to the request.

218.12 Progress payments shall be made no later than thirty days after such work is certified as in place by the architect or appropriate officer and all required supporting documents have been received by the City. The making of a progress payment is not an approval or acceptance of any part of the completed work.

218.13 On construction contracts having a contract value of $30,000 or more and having more than three payments, the City may retain 10% of all progress payments made until 50% of the work is in place. After the work is 50% in place, the City may retain 10% of all progress payments if the City determines the Contractor is not making satisfactory progress or the City has other cause relating to the Contractor's performance and specified such cause to the Contractor. Such retainage shall be deposited in an interest bearing account in a regulated financial institution and shall be accounted for separately and such retainage with all accrued interest shall be paid to the Contractor with final payment unless earlier released to the Contractor by the City. On contracts not for the construction, reconstruction, betterment, replacement or repair of a public facility, and contracts 1) less than $30,000 in contract value, or 2) having three or fewer payments, the City may retain up to 15% of all progress payments and interest shall not be paid on such retainage. Any construction contract dispute over the retainage, progress or interest shall be submitted to decision by a person appointed by the City in accordance with Section 4 of Act No. 524 of the Public Acts of 1980. Such decision shall be final as provided in Section 4(6) of Act No. 524, P.A. 1980.

218.14 Within one hundred and twenty (120) days after the completion of the work under this contract to the satisfaction of the City and its Engineer in accordance with all terms herein, the City shall make final payment from a final estimate made by the Engineer. The Contractor shall secure and furnish to the City a written statement from the surety or sureties approving payment of final estimate by the City. The final payment, when made, shall be considered as final approval and acceptance of the completed work herein specified.

218.15 The acceptance by the Contractor of the final payment aforesaid shall operate as, and shall be, a release to the City and its agents, from all claims and liabilities to the Contractor


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for anything done or furnished or relating to the work, or for any act or neglect of the City or of any person relating to or affecting the work.

218.2 Lump Sum Contracts Promptly following the execution of the contract the Contractor shall prepare and submit to the Engineer an itemized Schedule of Values including all items of equipment or supplies required under this contract. Partial payments shall be made on the basis of the Schedule of Values.

218.21 The statement may contain separate items for bonds and insurance.

218.22 The statement shall not contain such separate items as "Plant" or "Overhead.” Such costs shall be uniformly spread over the items of labor and material actually entering into the work.

218.23 The statement shall be submitted for the approval of the Engineer and after such approval shall be considered and become a part of the contract.

219. NO ESTOPPEL

219.1 The party of the first part shall not, nor shall any officer thereof be precluded or estopped by any return or certificate, made or given by the Engineer or other officer, agent, or appointee under the provisions of this agreement, at any time (either before or after the final completion and acceptance of the work and payment made thereof pursuant to any such return or certificates showing the true and correct amount of any money due therefore, notwithstanding any such return or certificate, or any payment made in accordance therewith) from demanding and receiving from the Contractor or his sureties, separately or collectively, such sums as may have been improperly paid said Contractor by reason of any such return or certificate which has been untruly or incorrectly compiled.

220. EXTRA WORK, REDUCED WORK AND OMITTED WORK

220.1 Should the Engineer deem additional work or material changes in design or construction, necessary for the good of the work, he may order the Contractor to do same. The work shall be paid for in accordance with the unit prices or lump sums, as stated in the Bid, or agreed upon unit prices or lump sums based, if possible upon bid prices similar work performed under other contracts in this area. In case any part or all of the extra work is not covered by unit prices or lump sums in the Schedule of Items or agreed upon unit prices or lump sums, then the Contractor shall be paid for this work on the basis of a fair allowance for the cost of labor, material and equipment, to be determined as follows:

220.11 For all labor and foreman in direct charge of the work the Contractor will receive the actual rate of wage paid for each and every hour that said labor and foreman are actually engaged in said work, plus 15 percent of the sum thereof.

220.12 For material and supplies actually incorporated in the work, the Contractor will receive the actual cost of such materials delivered to the job, plus 10 percent thereof.

220.13 For the use of machinery and equipment owned by the Contractor and used in such extra work, the Contractor will be paid in accordance with the current Michigan Department of Transportation Table of All-Inclusive Equipment Rental Rates Schedule "C,” for the


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period that such machinery and equipment is actually used on the work, plus 10 percent thereof. When it is necessary for the Contractor to use rented equipment on said extra work, he will be allowed the actual rental price, if reasonable, for each hour that such equipment is used on the work, plus 10 percent thereof.

220.14 Bond Premium, Workmen's Compensation Insurance, Personal Injury, Public Liability, and Property Damage Public Liability Insurance, Unemployment Compensation and Federal Social Security will be paid for at actual cost plus 15 percent.

220.15 The City shall not recognize subcontractors for payment on contract work. If stated percentages for profit, superintendence, general expense, overhead and the use of small tools and equipment for which no rental is allowed is applied to work performed by a subcontractor, then the Contractor shall not be entitled to additional compensation for these items.

220.16 When a change in the work involves both extra work and omitted or reduced contract work, the Contractor's payment shall be based on the difference between the cost of the extra work and the estimated value of the work omitted or reduced, computed in accordance with Sections 220.11, 220.12, 220.13, 220.14 and 220.15.

220.17 When a change in the work involves only omitted or reduced work in a lump sum contract or any part of a lump sum item in a unit price contract, the contract sum shall be reduced by the amount of the estimated value of such omitted work, computed in accordance with Sections 220.11, 220.12, 220.13, 220.14 and 220.15.

220.2 The compensation as herein provided shall be accepted by the Contractor as full payment for said extra work and the percentages shall cover profit, superintendence, general expense, overhead and the use of small tools and equipment for which no rental is allowed. The Contractor and the Engineer shall compare records of such extra work and bring them into agreement at the end of each day.

220.3 On or before the 20th of each month, the Contractor shall submit to the Engineer all bills or claims for extra work done during the preceding month, failing in which, it is mutually understood and agreed that the Contractor shall waive and forfeit all rights and claims to extra compensation for the same. The Contractor shall give written notice to the Engineer before commencing work which he considers extra, whether he shall have received written orders for the same or not, failing which notification he shall waive and forfeit all rights and claims to extra compensation.

221. QUANTITIES FOR PAYMENT

221.1 Quantities given are estimated and approximated only. Quantities to be paid for will be determined by actual quantities installed.

222. REMOVAL AND ERECTION OF TRAFFIC AND STREET SIGNS

222.1 Contractor shall be held responsible for street signs and traffic signs. If Contractor deems necessary, he may remove signs and deliver them in good condition to the D.P.W. yard thus relieving him of responsibility of any cost resulting from damage to them. Contractor will be responsible for "Stop" signs. No street shall be opened to traffic until all "Stop" signs have been


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replaced by the Contractor.

223. ORDER OF PROCEDURE

223.1 The order and method of procedure and the equipment to be used shall be carefully planned to expedite the work of the Contractor and all other Contractors engaged in or on the site of the work and to cause the least inconvenience to the public and abutting property owners. Such plans shall be submitted in writing for the approval of the Engineer.

224. WORKING HOURS

224.1 No work shall be performed between the hours of 10 P.M. and 7 A.M. This includes idling of engines in the "warming up" process. Contractor's attention is also called to City of Dearborn Code of Ordinances Chapter 13, Article II, Noise.

225. EQUAL EMPLOYMENT OPPORTUNITY

225.1 In connection with the performance of work under this contract, the Contractor agrees not to discriminate against any employee or applicant for employment because of race, religion, color, or national origin. The aforesaid provision shall include, but not be limited to, the following: employment, upgrading demotion, or transfer, recruitment or recruitment advertising, layoff or termination, rates of pay or other forms of compensation, and selection for training, including apprenticeship. The Contractor further agrees to insert the foregoing provision in all subcontracts hereunder, except subcontracts for standard commercial supplies or raw material.

225.2 The Contractor shall not discriminate against any employee or applicant for employment to be employed in the performance of this contract with respect to his hire, tenure, terms conditions or privileges of employment or any matter directly or indirectly related to employment because of age, except where based on a bona fide occupational qualification. The Contractor further agrees to insert the foregoing provision in all subcontracts hereunder, except subcontracts for standard commercial supplies or raw materials.

225.3 In the event of the Contractor's noncompliance with the nondiscrimination clauses of this contract, this contract may be canceled, terminated or suspended in whole or in part and the Contractor may be declared ineligible for further City of Dearborn contracts.

CITY OF DEARBORN

CONTRACT

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ARTICLES OF AGREEMENT, made and entered into this ____day of ___________ 20__, by and between the City of Dearborn, Wayne County, Michigan, and ______________________________, of the City of _________________, County of _______________, State of _____________.

WITNESSESSETH:

In consideration of the mutual promises of the parties hereto, IT IS AGREED:

1. That all copies of the Invitation to Bid which consists of the Title, Contents, Instructions to Bidders, Affidavit of Noncollusion by Bidder, Accompany Sheet, Bid Form, Notice of Award, Notice to Proceed, Federal Contract Provisions (if required), Davis-Bacon Prevailing Wage Requirement (if required), Special Conditions, General Conditions (Section 200 to 225), Specifications, Drawings, Index and executed copies of Insurance, Lien Bond and Performance Bond shall be and they are hereby made a part of this agreement and contract.

2. That Contractor, under penalty of bonds attached, shall furnish all labor, materials and equipment necessary and does covenant to do all the work in accordance with the Invitation to Bid for above referred to, in a manner, time and place, all and singular as therein set forth.

3. The City of Dearborn hereby Agrees and promises to pay the Contractor the sum provided in accordance with the lump sum bid provided by the Contractor in his bid and it shall be based on the Schedule of Values not to exceed amount of _____________________, all in the time and manner provided.

4. For the faithful performances of all and singular of the stipulations, terms, covenants and conditions of this agreement, the parties respectively bind themselves, their heirs, successors, personal representatives and assigns.

IN WITNESS WHEREOF, said parties have set their hands and seals, on the day and year first written above.

CITY OF DEARBORN

Authorized by Council Resolution No. __________________________

_________________________________________________________ Mayor John B. O’Reilly Jr. for the City of Dearborn Date __________________________________________________________ Contractor

IN THE PRESENCE OF

___________________________________ By: ________________________________________ (designate official capacity)

___________________________________ By: ________________________________________ (designate official capacity)

APPROVED:

DATE:

CORPORATION COUNSEL

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© 2011 CDM Michigan Inc. All Rights Reserved

PROJECT NO. 1410-72284 01010 - 1

SECTION 01010

SUMMARY OF WORK

PART 1 GENERAL

1.01 LOCATION OF WORK

A. The work of this Contract is located at approximately 1,300 feet northwest of 1700 Rotunda Drive, Dearborn, Michigan, and is bound to the northeast by the Rouge River and to the southwest by Southfield Drive. The site is designated as the Dearborn CSO Project Phase A Contract 3.

1.02 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required to perform the abandonment, demolition, backfill of the uncompleted caisson and water treatment system.

B. The Work includes:

1. Concrete caisson abandonment including:

a. Cut off rebar and sheet piling extending above the top of the existing reinforced concrete wall;

b. Backfill the interior of the shaft;

c. Grout the cracks within the existing shaft wall;

d. Fill the grout lines exposed at the top of the caisson;

e. Dewater and dispose of standing water inside the caisson;

f. Abandon and remove existing dewatering and water treatment facilities;

g. Place Type I clay cap within the upper portion of the caisson, and Type II clay caps above and around the caisson. Place compacted fill above the clay caps, and cover with top soil and seed; and.

h. Inspection and test clay cap seal prior to placement of final cover.

2. Complete final site grading and restoration activities.

1.03 WORK SEQUENCE

A. The abandonment of the caisson shall be performed in general accordance with the suggested sequence of work as shown on the Drawings, or as approved by the Engineer.

B. Completion dates of tasks shall be in accordance with the approved construction schedule submitted by the Contractor.


PROJECT NO. 1410-72284 01010 - 2

1.04 CONTRACTOR'S USE OF PREMISES

A. Contractor shall have complete and exclusive use of the premises as defined on the site drawing for the performance of the Work.

B. Coordinate use of premises with City, and provide access to site to the City, Wayne County, and Michigan Department of Transportation as requested.

C. Contractor shall assume full responsibility for security of all his/her and his/her subcontractors’ materials and equipment stored on the site.

D. If directed by the City, or Engineer, move any stored items which interfere with operations of City or other contractors.

E. Obtain and pay for use of additional storage or work areas if needed to perform the Work.

1.05 CITY OCCUPANCY

A. City may occupy premises during performance of the work for the conduct of his/her normal operations and service of the existing sewer facilities. Coordinate all construction operations with City to minimize conflict and to facilitate City usage and access.

B. City has an on-going program to conduct topographic survey of ground point elevations around the project site. The City will mark the points in advance of the pre-construction meeting. Contractor shall not block access to the survey points and shall not damage the points.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION (NOT USED)

END OF SECTION


PROJECT NO. 1410-72284 01046 - 1

SECTION 01046

CONTROL OF WORK

PART 1 GENERAL

1.01 EQUIPMENT

A. Furnish equipment which will be efficient, appropriate, and large enough to secure a satisfactory quality of work and a rate of progress which will ensure the completion of the work within the Contract Time. If at any time equipment appears to be inefficient, inappropriate, or insufficient for securing the quality of work required or for producing the rate of progress aforesaid, Engineer may order the Contractor to increase the efficiency, change the character or increase quantity of the equipment and the Contractor shall conform to such order. Failure of the Engineer to give such order shall in no way relieve the Contractor of his obligations to secure the quality of the work and rate of progress required.

1.02 PRIVATE LAND

A. Do not enter or occupy private land outside of limits of work, except by permission of the land owner.

1.03 PIPE LOCATIONS

A. Locate pipelines substantially as indicated on the Drawings. The Engineer reserves the right to make such modifications in locations as may be found desirable to avoid interference with existing structures or for other reasons.

1.04 OPEN EXCAVATIONS

A. Adequately safeguard all open excavations, including the existing shaft, by providing temporary barricades, caution signs, lights and other means to prevent accidents to persons and damage to property. The length or size of excavation will be controlled by the particular surrounding conditions, but shall always be confined to the limits prescribed by the Engineer.

B. Take precautions to prevent injury to the public due to open trenches. Provide adequate light at all trenches, excavated material, equipment, or other obstacles which could be dangerous to the public at night.

1.05 TEST PITS

A. Excavate test pits, at the direction of the Engineer, to locate underground pipelines or structures in advance of the construction. Backfill test pits immediately after their purpose has been satisfied and restore and maintain the surface in a manner satisfactory to the Engineer.

1.06 MAINTENANCE OF TRAFFIC

A. Unless permission to close a street is received in writing from the proper authority, place all excavated material so that vehicular and pedestrian traffic on and off site may be maintained at all times. If the construction operations cause traffic hazards, repair the road surface, provide temporary ways, erect wheel guards or fences, or take other measures for safety satisfactory to the Engineer.


PROJECT NO. 1410-72284 01046 - 2

B. Detours around construction will be subject to the approval of the City and the Engineer. Where detours are permitted, provide all necessary barricades and signs as required to divert the flow of traffic. Expedite construction operations while traffic is detoured.

C. Take precautions to prevent injury to the public due to open trenches. Night watchmen may be required where special hazards exist, or police protection provided for traffic while work is in progress. Be fully responsible for damage or injuries whether or not police protection has been provided.

1.07 CARE AND PROTECTION OF PROPERTY

A. Be responsible for the preservation of all public and private property and use every precaution necessary to prevent damage thereto. If any direct or indirect damage is done to public or private property by or on account of any act, omission, neglect, or misconduct in the execution of the work on the part of the Contractor, restore such property to a condition similar or equal to that existing before the damage was done, or make good the damage in other manner acceptable to the Engineer.

1.08 PROTECTION AND RELOCATION OF EXISTING STRUCTURES AND UTILITIES

A. Assume full responsibility for the protection of all buildings, structures, and utilities, public or private, including poles, signs, services to buildings, utilities in the street, gas pipes, water pipes, hydrants, sewers, drains and electric and telephone cables, whether or not they are shown on the Drawings. Carefully support and protect all such structures and utilities from injury of any kind. Immediately repair any damage resulting from the construction operations.

B. Assistance will be given the Contractor in determining the location of existing services. The Contractor, however, shall bear full responsibility for obtaining all locations of underground structures and utilities (including existing water services, drain lines and sewers). Maintain services to buildings and pay costs or charges resulting from damage thereto.

C. Notify all utility companies in writing at least 72 hours (excluding Saturdays, Sundays and Legal holidays) before excavating in any public way. Also notify Michigan MISS Dig System, Inc. by telephone 1-800-482-7171 or 811, or electronically at http://www.missdig.net/ at least 72 hours prior to start of work.

D. If, in the opinion of the Engineer, permanent relocation of a utility is required, the City or Engineer may direct the Contractor, in writing, to perform the work. Work so ordered will be paid for at the Contract unit prices, if applicable, or as extra work under Article 11 of the Supplementary Conditions. If relocation of a privately owned utility is required, the City will notify the Utility to perform the work as expeditiously as possible. Cooperate with the City of Dearborn and Utility. No claim for delay will be allowed due to such relocation.

1.09 WATER FOR CONSTRUCTION PURPOSES

A. In locations where public water supply is available, the Contractor may be allowed to use water without charge for construction purposes.

B. The express approval of the City shall be obtained before water is used. Waste of water shall be sufficient cause for withdrawing the privilege of unrestricted use. Hydrants shall only be operated with written permission of the City's personnel.


PROJECT NO. 1410-72284 01046 - 3

1.10 MAINTENANCE OF FLOW

A. Provide for the flow of sewers, drains and water courses interrupted during the progress of the work, and immediately cart away and remove all offensive matter. Discuss the entire procedure of maintaining existing flow with the Engineer well in advance of the interruption of any flow.

1.11 COOPERATION WITHIN THIS CONTRACT

A. All firms or persons authorized to perform any work under this Contract shall cooperate with Contractor and Subcontractors or trades and assist in incorporating the work of other trades where necessary or required.

B. Cutting and patching, drilling and fitting shall be carried out where required by the trade or subcontractor having jurisdiction, unless otherwise indicated herein or directed by the Engineer.

1.12 CLEANUP AND DISPOSAL OF EXCESS MATERIAL

A. During the course of the work, keep the site of operations as clean and neat as possible. Dispose of all residue resulting from the construction work and, at the conclusion of the work, remove and haul away any surplus excavation, broken pavement, lumber, equipment, temporary structures and any other refuse remaining from the construction operations, and leave the entire site of the work in a neat and orderly condition.

B. In order to prevent environmental pollution arising from the construction activities related to the performance of this Contract, comply with all applicable Federal, State and local laws and regulations concerning waste material disposal, as well as the specific requirements stated in this Section and in other related sections.

C. Disposal of excess excavated material in wetlands, stream corridors and plains is strictly prohibited even if the permission of the property City is obtained. Any violation of this restriction by the Contractor or any person employed by him will be brought to the immediate attention of the responsible regulatory agencies, with a request that appropriate action be taken against the offending parties. The Contractor will be required to remove the fill and restore the area impacted at no increase in the Contract Price.



END OF SECTION


PROJECT NO. 1410-72284 01200 - 1

SECTION 01200

PROJECT MEETINGS

PART 1 GENERAL

1.01 REQUIREMENTS INCLUDED

A. The Engineer shall schedule and administer pre-construction meeting, periodic progress meetings and specially called meetings throughout progress of the work.

1. Prepare agenda for meetings.

2. Make physical arrangements for meetings.

3. Preside at meetings.

4. Record the minutes; include significant proceedings and decisions.

5. Reproduce and distribute copies of minutes within 10 working days after each meeting.

a. To participants in the meeting.

b. To parties affected by decisions made at the meeting.

c. The project file

B. Representatives of Contractors, subcontractors and suppliers attending meetings shall be qualified and authorized to act on behalf of the entity each represents.

C. Attend meetings to ascertain that work is expedited consistent with Contract Documents and construction schedules.

1.02 RELATED REQUIREMENTS

A. Instructions to Bidders.

B. Construction Schedules are included in Section 01311.

C. Submittals are included in Section 01300.

D. Project Record Documents and Close Out Documents are included in Section 01300.

1.03 PRE-CONSTRUCTION MEETING

A. Schedule a preconstruction meeting no later than 15 days after date of Notice to Proceed.

B. Location: A central site, convenient for all parties, designated by the City.

C. Attendance

1. City's Representative.

2. Engineer and his/her professional consultants.

3. Resident Project Representative.


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4. Contractor's Superintendent.

5. Major Subcontractors.

6. Others as appropriate.

D. Suggested Agenda

1. Distribution and discussion of:

a. List of major subcontractors and suppliers.

b. Projected Construction Schedules.

2. Critical work sequencing.

3. Major equipment deliveries and priorities.

4. Project Coordination.

a. Designation of responsible personnel.

5. Procedures and processing of:

a. Field decisions.

b. Proposal requests.

c. Submittals.

d. Change Orders.

e. Applications for Payment.

6. Adequacy of distribution of Contract Documents.

7. Procedures for maintaining Record Documents.

8. Use of premises:

a. Office, work and storage areas.

b. City's requirements.

9. Construction facilities, controls and construction aids.

10. Temporary utilities.

11. Housekeeping procedures.

1.04 PROGRESS MEETINGS

A. Schedule regular periodic meetings. The progress meetings will be held weekly during the abandonment of the shaft and 30 days thereafter for other site restorations activities with the first meeting 15 days after the pre-construction meeting or 30 days after the date of Notice to Proceed.

B. Hold called meetings as required by progress of the work.


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C. Location of the meetings: Project field office of Contractor.

D. Attendance:

1. Engineer and his/her professional consultants as needed.

2. Subcontractors as appropriate to the agenda.

3. Suppliers as appropriate to the agenda.

4. Others as appropriate.

E. Suggested Agenda

1. Review, approval of minutes of previous meeting.

2. Review of work progress since previous meeting.

3. Field observations, problems and conflicts.

4. Problems which impede Construction Schedule.

5. Review schedule for two weeks ahead.

6. Review of off-site fabrication, and or material delivery schedules for forward activities.

7. Review potential corrective measures and procedures to regain projected schedule.

8. Review potential revisions to Construction Schedule.

9. Coordination of schedules with other activities at the site.

10. Review submittal schedules; expedite as required.

11. Review maintenance of quality standards.

12. Review of pending changes and substitutions.

13. Review proposed changes for:

a. Effect on Construction Schedule and on completion date.

b. Effect on other contracts of the project.

14. Other business.

15. Review overall construction schedule.

16. Critical/long lead items.

F. Attend progress meetings and is to study previous meeting minutes and current agenda items, in order to be prepared to discuss pertinent topics such as deliveries of materials and equipment, progress of the work, etc.

G. Provide a current submittal log at each progress meeting in accordance with Section 01300.


PROJECT NO. 1410-72284 01200 - 4



END OF SECTION


PROJECT NO. 1410-72284 01300 - 1

SECTION 01300

SUBMITTALS

PART 1 GENERAL

1.01 SCOPE OF WORK

A. This Section includes the requirements for compiling, processing and transmitting submittals required for execution of the project.

B. Submittals are categorized into two types: Action Submittals and Informational Submittals, as follows:

1. Action Submittal: Written and graphic information submitted by the Contractor that requires the Engineer's approval. The following are examples of action submittals:

a. Work plan

b. Shop drawings (including working drawings and product data)

c. Samples

d. Operation & maintenance manuals

e. Site Usage Plan (Contractor’s staging - including trailer siting and material lay-down area)

f. Schedule of Values (SOV)

g. Payment application format

h. As-built surveys

i. Record Drawings

2. Informational Submittal: Information submitted by the Contractor that does not require the Engineer’s approval. The following are examples of informational submittals:

a. Shop drawing schedule

b. Statements of qualifications

c. Health and Safety Plans

d. Construction photography and videography

e. Outage requests

f. Test records and reports

g. Vendor training outlines/plans

h. Certifications

i. Record Shop Drawings


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j. Other requirements found within the technical specifications

k. Warranties and Bonds

l. Contract close-out documents

1.02 RELATED WORK

A. Additional requirements may be specified in the General Conditions for the Contract.

B. Additional submittal requirements may be specified in the respective technical Specification Sections, General Conditions, and Special Conditions.

1.03 CONTRACTOR’S RESPONSIBILITIES

A. All submittals shall be clearly identified as follows:

1. Date of submission.

2. Project number.

3. Project name.

4. Contractor identification.

a. Contractor.

b. Supplier.

c. Manufacturer.

d. Manufacturer or supplier representative.

5. Identification of the product.

6. Reference to Contract drawing(s).

7. Reference to specification section number, page and paragraph(s).

8. Reference to applicable standards, such as ASTM or Federal Standards numbers.

9. Indication of Contractor’s approval.

10. Contractor’s Certification statement.

11. Identification of deviations from the Contract Documents, if any.

12. Reference to previous submittal (for resubmittals).

B. Submittals shall be clear and legible, and of sufficient size for legibility and clarity of the presented data.

C. Maintain a log of all submittals. The submittal log shall be kept accurate and up to date. This log should include the following items (as applicable):

1. Description.

2. Submittal number.


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3. Date transmitted to the Engineer.

4. Date returned to Contractor (from Engineer).

5. Status of Submittal (Approved/Not Approved/etc.).

6. Date of Resubmittal to Engineer and Return from Engineer (if applicable and repeat as necessary).

7. Date material released for fabrication.

8. Projected (or actual) delivery date.

D. Utilize a 9-character submittal identification numbering system in the following manner:

1. The first character shall be a D, S, M or I which represents Shop Drawing (including working drawings and product data), Sample, Manual (Operating & Maintenance) or Informational, respectively.

2. The next five digits shall be the applicable Section Number.

3. The next two digits shall be the numbers 01 to 99 to sequentially number each separate item or drawing submitted under each specific Specification Section, in the order submitted.

4. The last character shall be a letter, A to Z, indicating the submission (or resubmission) of the same submittal, i.e., "A” = 1st submission, “B” = 2nd submission, “C” = 3rd submission, etc. A typical submittal number would be as follows:

D-03300-008-B

D = Shop Drawing

03300 = Section for Concrete

08 = the eighth different submittal under this section

B = the second submission (first resubmission) of that particular shop drawing.

E. Notify the Engineer in writing, at the time of submittal, of any deviations in the submittals from the requirements of the Contract Documents.

F. Action Submittals

1. Shop Drawings, Working Drawings, Product Data and Samples

a. Shop Drawings

1) Shop drawings as defined in the General Conditions, and as specified in individual Sections include, but are not necessarily limited to, custom prepared data such as fabrication and erection/installation (working) drawings, scheduled information, setting diagrams, actual shop work manufacturing instructions, custom templates, wiring diagrams, coordination


PROJECT NO. 1410-72284 01300 - 4

drawings, equipment inspection and test reports, including performance curves and certifications, as applicable to the work.

2) Contactor shall verify all field measurements, field construction criteria, materials, dimensions, catalog numbers and similar data, and coordinate each item with other related shop drawings and the Contract requirements.

3) All details on shop drawings shall show clearly the relation of the various parts to the main members and lines of the structure and where correct fabrication of the work depends upon field measurements, such measurements shall be made and noted on the drawings before being submitted.

4) All shop drawings submitted by subcontractors and vendors shall be reviewed by the Contractor for field measurements, field construction criteria, materials, dimensions, catalog numbers and similar data, and that it has been coordinated with other related shop drawings and the Contract requirements. Submittals directly from subcontractors or vendors will not be accepted by the Engineer.

5) The Contractor shall be responsible the accuracy of the subcontractor’s or vendor’s submittal; and, for their submission in a timely manner to support the requirements of the Contractor’s construction schedule. Shop drawings found to be inaccurate or otherwise in error shall be returned to the subcontractor or vendor to correct before submission to the Engineer. All shop drawings shall be approved by the Contractor.

6) Delays to construction due to the untimely submission of submittals will constitute inexcusable delays, for which Contactor shall not be eligible for additional cost nor additional contract time. Inexcusable delays consist of any delay within the Contactor’s control.

7) Submittals for equipment specified under Divisions 11, 13, 14, 15 and 16 shall include a listing of installations where identical or similar equipment manufactured by that manufacturer has been installed and in operation for a period of at least five years.

b. Product Data

1) Product data, as specified in individual Specification Sections, include, but are not limited to, the manufacturer’s standard prepared data for manufactured products (catalog data), such as the product specifications, installation instructions, availability of colors and patterns, rough-in diagrams and templates, product photographs (or diagrams), wiring diagrams, performance curves, quality control inspection and reports, certifications of compliance (as specified or otherwise required), mill reports, product operating and maintenance instructions, recommended spare parts and product warranties, as applicable.


PROJECT NO. 1410-72284 01300 - 5

c. Samples

1) Furnish, samples required by the Contract Documents for the Engineer’s approval. Samples shall be delivered to the Engineer as specified or directed. Unless specified otherwise, provide at least two samples of each required item. Materials or equipment for which samples are required shall not be used in the work unless and until approved by the Engineer.

2) Samples specified in individual Specification Sections, include, but are not limited to: physical examples of the work (such as sections of manufactured or fabricated work), small cuts or containers of materials, complete units of repetitively-used products, color/texture/pattern swatches and range sets, specimens for coordination of visual effect, graphic symbols, and other specified units of work.

3) Approval of a sample shall be only for the characteristics or use named in such approval and shall not be construed to change or modify and Contract Requirements.

4) Approved samples not destroyed in testing shall be sent to the Engineer or stored at the site of the work. Approved samples of the hardware in good condition will be marked for identification and may be used in the work. Materials and equipment incorporated in work shall match the approved samples. Samples which fail testing or are not approved will be returned to the Contractor at his expense, if so requested at time of submission.

2. Professional Engineer (P.E.) Certification Form

a. If specifically required in any of the technical Specification Sections, submit a Professional Engineer (P.E.) Certification for each item required, using the form appended to this Section, signed and sealed by the P.E. licensed or registered in the state wherein the work is located.

3. Contractor’s Certification

a. Each shop drawing, working drawings, product data, and sample shall have affixed to it the following Certification Statement:

"Certification Statement: by this submittal, I hereby represent that I have determined and verified all field measurements, field construction criteria, materials, dimensions, catalog numbers and similar data and I have checked and coordinated each item with other applicable approved shop drawings and all Contract requirements."

b. Shop drawings, working drawings, and product data sheets 11-in x 17-in and smaller shall be bound together in an orderly fashion and bear the above Certification Statement on the cover sheet. The transmittal cover sheet for each identified shop drawing shall fully describe the packaged data and include a listing of all items within the package.

4. The review and approval of shop drawings, working drawings, product data, or samples by the Engineer shall not relieve the Contractor from the responsibility for the fulfillment


PROJECT NO. 1410-72284 01300 - 6

of the terms of the Contract. All risks of error and omission are assumed by the Contractor, and the Engineer will have no responsibility there for.

5. Project work, materials, fabrication, and installation shall conform to approved shop drawings (including working drawings and product data) and applicable samples.

6. No portion of the work requiring a shop drawing (including working drawings and product data) or sample shall be started, nor shall any materials be fabricated or installed before approval of such item. Procurement, fabrication, delivery or installation or products or materials that do not conform to approved shop drawings shall be at the Contractor's risk. Furthermore, such products or materials delivered or installed without approved shop drawings, or in non-conformance with the approved shop drawings will not be eligible for progress payment until such time as the product or material is approved or brought into compliance with approved shop drawings. Neither the City nor Engineer will be liable for any expense or delay due to corrections or remedies required to accomplish conformity.

7. Schedule of Values

a. On projects consisting of lump sums (in whole or in part) submit a proposed schedule of values providing a breakdown of the lump sum items into relatively small components related to activities shown on the Construction Schedule specified in Section 01311. The following payment milestones are to be used:

1. Mobilization

2. Complete Grouting and Backfill Outside of Caisson

3. Place Pervious Fill to Elevation 577-feet and Repairs to Diversion Conduit

4. Complete Compacted Clay Cap to Elevation 590-feet

5. Complete Common Fill Surcharge to minimum elevation 596-feet above the caisson walls, to a minimum elevation of 597.5-feet in the center of the caisson.

6. Complete Punch List and Demobilization

b. The purpose of the schedule of values is for processing partial payment applications. If requested by the Engineer, provide sufficient substantiation for all, or some, items as necessary to determine the proposed schedule of values is a reasonable representation of the true cost breakdown of the Work. The schedule of values shall not be unbalanced to achieve early payment or over-payment in excess of the value of work or any other mis-distribution of the costs. If, in the opinion of the Engineer, the schedule of values is unbalanced, Contractor shall reallocate components to achieve a balanced schedule acceptable to Engineer.

8. Payment Application Format

a. If an application form is included in the Contract Documents, use that form unless otherwise approved by the Engineer and City. If an application form is not included in the Contract Documents, Contractor may propose a form for approval.


PROJECT NO. 1410-72284 01300 - 7

9. Site Usage

a. Submit a proposed site staging plan, including but not limited to the location of office trailers, storage trailers and material lay down. Such plan shall be a graphic presentation (drawing) of the proposed locations; and, shall include on-site traffic modifications, and temporary utilities, as may be applicable.

G. INFORMATIONAL SUBMITTALS

1. Shop drawing Schedule

a. Prepare and submit a schedule indicating when shop drawings are required to be submitted to support the as-planned construction schedule. The submittal schedule shall allow sufficient time for preparation and submittal, review and approval, and fabrication and delivery to support the construction schedule.

2. Construction Schedule

a. Prepare and submit construction schedules and monthly status reports as specified.

3. Statements of Qualifications

a. Provide evidence of qualification, certification, or registration, as required in the Contract Documents, to verify qualifications of licensed land surveyor, professional engineer, materials testing laboratory, specialty subcontractor, technical specialist, consultant, specialty installer, and other professionals.

4. Health and Safety Plans

a. When specified, prepare and submit a general company Health and Safety Plan (HSP), modified or supplemented to include job-specific considerations.

5. Construction Photography and Videography

a. Provide construction photographs and videography as follows:

a. monthly construction photos, including pre-construction; up to 12 8-inch by 10-inch color photos per month as directed by the Engineer.

b. 30-minute pre-construction audio video recording and 30-minute post-construction audio video recording as directed by the Engineer. Provide 2 copies of the recordings in DVD-Video format. Recording shall be able to produce still images at 800k pixels resolution.

6. Work Plans

a. Prepare and submit copies of all work plans needed to demonstrate to the City that Contractor has adequately thought-out the means and methods of construction and their interface with existing facilities.

7. Maintenance of Traffic Plans

a. Prepare maintenance of traffic plans where and when required by the Contract Documents and by local ordinances or regulations. If Contractor is not already knowledgeable about local ordinances and regulations regarding maintenance of


PROJECT NO. 1410-72284 01300 - 8

traffic requirements, become familiar with such requirements and include all costs for preparation and submittal of traffic management plans and all associated costs for permits and fees to implement the traffic management plan, in the bid amount. In addition, unless a supplemental payment provision is provided in the bid form, include the cost of police attendance, when required.

8. Outage Requests

a. Provide sufficient notification of any outages required (electrical, flow processes, etc.) as may be required to tie-in new work into existing facilities. Unless specified otherwise elsewhere, a minimum of seven calendar days notice shall be provided.

9. Proposed Testing Procedures

a. Prepare and submit testing procedures it proposes to use to perform testing required by the various technical specifications.

10. Test Records and Reports

a. Provide copies of all test records and reports as specified in the various technical specifications.

11. Vendor Training Outlines/Plans

a. At least two weeks before scheduled training of City’s personnel, provide lesson plans for vendor training in accordance with the specification for O&M manuals.

12. Test and Start-up Reports

a. Manufacture shall perform all pre-start-up installation inspection, calibrations, alignments, and performance testing as specified in the respective Specification Section. Provide copies of all such test and start-up reports.

13. Certifications

a. Provide various certifications as required by the technical specifications. Such certifications shall be signed by an officer (of the firm) or other individual authorized to sign documents on behalf of that entity.

b. Certifications may include, but are not limited to:

1) Welding certifications and welders qualifications.

2) Certifications of Installation, Testing and Training for all equipment.

3) Material Testing reports furnished by an independent testing firm.

4) Certifications from manufacturer(s) for specified factory testing.

5) Certifications required to indicate compliance with any sustainability or LEEDS accreditation requirements indicated in the Contract Documents.


PROJECT NO. 1410-72284 01300 - 9

14. Record Drawings

a. No later than Substantial Completion, submit a record of all changes during construction not already incorporated into drawings. Record Drawings shall be prepared in AutoCAD 2008 DWG format files, or later version.

b. The record drawings shall present the final topographic map of the site using 1-foot contour lines, shall show the location of all fences, parking lots, and other structures and features for the entire project site.

15. Record Shop Drawings

a. Before final payment is made, furnish one set of record shop drawings to the Engineer. These record shop drawings shall be in conformance with the approved documents and should show any field conditions which may affect their accuracy.

16. Submittals required by laws, regulations and governing agencies

a. Prepare and submit all documentation required by state or local law, regulation or government agency directly to the applicable agency. This includes, but is not limited to, notifications, reports, certifications, certified payroll (for projects subject to wage requirements) and other documentation required to satisfy all requirements. Provide to Engineer one copy of each submittal made in accordance with this paragraph.

17. Submittals Required by Funding Agencies

a. Prepare and submit all documentation required by funding agencies. This includes, but is not limited to segregated pay applications and change orders when required to properly allocate funds to different funding sources; and certified payrolls for projects subject to wage requirements. Provide one copy of each submittal made in accordance with this paragraph to the Engineer.

18. Other Requirements of the Technical Specification Sections

a. Comply with all other requirements of the technical specifications.

19. Warranties and Bonds

a. Assemble a book(let) of all warranties and bonds as specified in the various technical specifications and in accordance with the specification on Warranties and Bonds and provide to the Engineer.

20. As-Built Surveys

a. Engage the services of a licensed land surveyor in accordance with the Project Controls specification. Prior to Final Completion, provide an as-built survey of the constructed facility, as specified.

21. Contract Close-out Documents

a. Submit Contract documentation as indicated in the specification for Contract Close-out.


PROJECT NO. 1410-72284 01300 - 10


PART 3 EXECUTION

3.01 SUBMITTAL SCHEDULE

A. Provide an initial submittal schedule at the pre-construction meeting for review by City and Engineer. Incorporate comments from City or Engineer into a revised submittal schedule.

B. Maintain the submittal schedule and provide sufficient copies for review by City and Engineer. An up-to-date submittal schedule shall be provided at each project progress meeting.

3.02 TRANSMITTALS

A. Prepare separate transmittal sheets for each submittal. Each transmittal sheet shall include at least the following: the Contractor’s name and address, City’s name, project name, project number, submittal number, description of submittal and number of copies submitted.

B. Submittals shall be transmitted or delivered directly to the office of the Engineer, as indicated in the Contact Documents or as otherwise directed by the Engineer.

C. Provide copies of transmittals (only, i.e., without copies of the respective submittal) directly to the Resident Project Representative.

3.03 PROCEDURES

A. Action Submittals

1. Contractor’s responsibilities:

a. Coordination of Submittal Times: Prepare and transmit each submittal sufficiently in advance of performing the related work or other applicable activities, or within the time specified in the individual work of other related Sections, so that the installation will not be delayed by processing times including disapproval and resubmittal (if required). Coordinate with other submittals, testing, purchasing, fabrication, delivery and similar sequenced activities. Extensions to the Contract Time will not be approved for the Contractor’s failure to transmit submittals sufficiently in advance of the Work.

b. The submittals of all shop drawings (including working drawings and product data) shall be sufficiently in advance of construction requirements to allow for possible need of re-submittals, including the specified review time for the Engineer.

c. No less than 30 calendar days will be required for Engineer’s review time for shop drawings and O&M manuals involving only one engineering discipline. No less than 45 calendar days will be required for Engineer’s review time for shop drawings and O&M manuals that require review by more than one engineering discipline. Resubmittals will be subject to the same review time.

d. Submittals of operation and maintenance data shall be provided within 30 days of approval of the related shop drawing(s).

e. Before submission to the Engineer, review shop drawings as follows:


PROJECT NO. 1410-72284 01300 - 11

1) Make corrections and add field measurements, as required

2) Use any color for its notations except red (reserved for the Engineer’s notations) and black (to be able to distinguish notations on black and white documents)

3) Identify and describe each deviation or variation from Contract documents

4) Include the required Contractor’s Certification statement

5) Provide field measurements (as needed)

6) Coordinate with other submittals

7) Indicate relationships to other features of the Work

8) Highlight information applicable to the Work and/or delete information not applicable to the Work

f. Submit the following number of copies:

1) Shop drawings (including working drawings and product data) – Submit no fewer than six, and no more than nine; five of which will be retained by the Engineer.

2) Samples – three

3) Site Usage Plan – three copies

4) Schedule of values – four copies

5) Payment application format – four copies

g. If Contractor considers any correction indicated on the shop drawings to constitute a change to the Contract Documents, provide written notice thereof to the Engineer immediately; and do not release for manufacture before such notice has been received by the Engineer.

h. When the shop drawings have been completed to the satisfaction of the Engineer, carry out the construction in accordance therewith; and make no further changes therein except upon written instructions from the Engineer.

2. Engineer’s Responsibilities

a. Engineer will not review shop drawings (including working drawings and product data) that do not include the Contractor's approval stamp. Such submittals will be returned to the Contractor, without action, for correction.

b. Partial shop drawings (including working drawings and product data) will not be reviewed. If, in the opinion of the Engineer, a submittal is incomplete, that submittal will be returned to the Contractor for completion. Such submittals may be returned with comments from Engineer indicating the deficiencies requiring correction.


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c. If shop drawings (including working drawings and product data) meet the submittal requirements, Engineer will forward copies to appropriate reviewer(s). Otherwise, noncompliant submittals will be returned to the Contractor without action - with the Engineer retaining one copy.

d. Submittals which are transmitted in accordance with the specified requirements will be reviewed by the Engineer within the time specified herein. The time for review will commence upon receipt of submittal by Engineer.

3. Review of Shop Drawings of (including Working Drawings and Product Data) and Samples

a. The review of shop drawings, working drawings, data and samples will be for general conformance with the design concept and Contract Documents. They shall not be construed:

1) As permitting any departure from the Contract requirements

2) As relieving the Contractor of responsibility for any errors, including details, dimensions, and materials

3) As approving departures from details furnished by the Engineer, except as otherwise provided herein

b. The Contractor remains responsible for details and accuracy, for coordinating the work with all other associated work and trades, for selecting fabrication processes, for techniques of assembly, and for performing work in a safe manner.

c. If the shop drawings (including working drawings and product data) or samples as submitted describe variations and indicate a deviation from the Contract requirements that, in the opinion of the Engineer are in the interest of the City and are so minor as not to involve a change in Contract Price or Contract Time, the Engineer may return the reviewed drawings without noting an exception.

d. Only the Engineer will utilize the color “RED” in marking submittals.

e. Shop drawings will be returned to the Contractor with one of the following codes.

Code 1 – “APPROVED” – This code is assigned when there are no notations or comments on the submittal. When returned under this code the Contractor may release the equipment and/or material for manufacture.

Code 2 - "APPROVED AS NOTED" - This code is assigned when a confirmation of the notations and comments IS NOT required by the Contractor. The Contractor may release the equipment or material for manufacture; however, all notations and comments must be incorporated into the final product.

Code 3 - "APPROVED AS NOTED/CONFIRM" - This combination of codes is assigned when a confirmation of the notations and comments is required by the Contractor. The Contractor may release the equipment or material for manufacture; however, all notations and comments must be incorporated into the final product. This confirmation shall specifically


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address each omission and nonconforming item that was noted. Confirmation is to be received by the Engineer within 15 calendar days of the date of the Engineer's transmittal requiring the confirmation.

Code 4 - "APPROVED AS NOTED/RESUBMIT" - This combination of codes is assigned when notations and comments are extensive enough to require a resubmittal of the entire package. This resubmittal is to address all comments, omissions and non-conforming items that were noted. Resubmittal is to be received by the Engineer within 30 calendar days of the date of the Engineer's transmittal requiring the resubmittal.

Code 5 – “NOT APPROVED” – This code is assigned when the submittal does not meet the intent of the contract documents. The Contractor must resubmit the entire package revised to bring the submittal into conformance. It may be necessary to resubmit using a different manufacturer/vendor to meet the requirements of the contract documents.

Code 6 – “COMMENTS ATTACHED” – This code is assigned where there are comments attached to the returned submittal, which provide additional data to aid the Contractor.

Code 7 – “RECEIPT ACKNOWLEDGED (Not subject to Engineer’s Review or Approval)” – This code is assigned to acknowledge receipt of a submittal that is not subject to the Engineer’s review and approval, and is being filed for informational purposes only. This code is generally used in acknowledging receipt of means and methods of construction work plans, field conformance test reports, and health and safety plans.

Codes 1 through 5 designate the status of the reviewed submittal with Code 6 showing there has been an attachment of additional data.

f. REPETITIVE REVIEWS: Shop drawings, O&M manuals and other submittals will be reviewed no more than twice at the City’s expense. All subsequent reviews will be performed at the Contractor’s expense. Reimburse the City for all costs invoiced by Engineer for the third and subsequent reviews.

4. Electronic Transmission

a. ACTION SUBMITTALS may be transmitted by electronic means provided the following conditions are met:

1) The above-specified transmittal form is included.

2) All other requirements specified above have been met including, but not limited to, coordination by the Contractor, review and approval by the Contactor, and the Contractor’s Certification.

3) The submittal contains no pages or sheets large than 11 x 17 inches.

4) With the exception of the transmittal sheet, the entire submittal is included in a single file.

5) The electronic files are PDF format (with printing enabled).


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6) In addition, transmit three hard-copy (paper) originals to the Engineer.

7) The Engineer’s review time will commence upon receipt of the hard copies of the submittal.

8) For Submittals that require certification, corporate seal, or professional embossment (i.e. P.E.s, Surveyors, etc) transmit at least two hard-copy originals to the Engineer. In addition, provide additional photocopied or scanned copies, as specified above, showing the required certification, corporate seal, or professional seal.

B. Informational Submittals

1. Contractor’s Responsibilities

a. Number of copies: Submit three copies, unless otherwise indicated in individual Specification sections

b. Refer to individual technical Specification Sections for specific submittal requirements.

2. Engineer’s Responsibilities

a. The Engineer will review each informational submittal within 15 days. If the informational submittal complies with the Contract requirements, Engineer will file for the project record and transmit a copy to the City. Engineer may elect not to respond to Contractor regarding informational submittals meeting the Contract requirements.

b. If an informational submittal does not comply with the Contract requirements, Engineer will respond accordingly to the Contractor within 15 days. Thereafter, the Contractor shall perform the required corrective action, including retesting, if needed, until the submittal, in the opinion of the Engineer, is in conformance with the Contract Documents.

3. Electronic Transmission

a. INFORMATIONAL SUBMITTALS may be transmitted by electronic means providing all of the following conditions are met:

1) The above-specified transmittal form is included.

2) The submittal contains no pages or sheets large than 11 x 17 inches.

3) With the exception of the transmittal sheet, the entire submittal is included in a single file.

4) The electronic files are PDF format (printing enabled).

5) For Submittals that require certification, corporate seal, or professional embossment (i.e. P.E.s, Surveyors, etc)) transmit two hard-copy originals to the Engineer.

END OF SECTION


PROJECT NO. 1410-72284 01300 - 15

P.E. CERTIFICATION FORM

The undersigned hereby certifies that he/she is a professional engineer registered in the State of Michigan and that he/she has been employed by

______________________________________________________________________ to design

(Name of Contractor)

_____________________________________________________________________________

(Insert P.E. Responsibilities)

In accordance with Specification Section __________________________________________ for the

____________________________________________________________________________.

(Name of Project)

The undersigned further certifies that he/she has performed the said design in conformance with all applicable local, state and federal codes, rules and regulations; and, that his/her signature and P.E. stamp have been affixed to all calculations and drawings used in, and resulting from, the design.

The undersigned hereby agrees to make all original design drawings and calculations available to the

_______________________________________________________________________________

(Insert Name of City)

or City's representative within seven days following written request therefore by the City.

___________________________________ ___________________________________

P.E. Name Contractor's Name

___________________________________ ___________________________________

Signature Signature

___________________________________ ___________________________________

Address Title

___________________________________

Address


PROJECT NO: 1410-72284 01311 - 1

SECTION 01311

CONSTRUCTION SCHEDULING

PART 1 GENERAL

1.01 PROGRAM DESCRIPTION

A. A construction schedule shall be used to control the work of this Contract and to provide a definitive basis for determining job progress. The construction schedule shall be prepared by the Contractor. Computer updating will be performed by Engineer. All work shall be done in accordance with the established schedule, and the Contractor and his/her subcontractors shall be responsible for cooperating fully with the Engineer and the City in effectively utilizing the schedule.

B. The schedule to be prepared and submitted by the Contractor shall consist of a Gantt chart and associated task network produced in Microsoft Project, or similar software approved by the Engineer.

C. The work day to calendar date correlation shall be based on an 8-hour day and 40-hour week with adequate allowance for holidays, adverse weather, and all other special requirements of the work.

1.02 NETWORK REQUIREMENTS

A. The construction network shall show the order and inter-dependence of activities and the sequence in which the work is to be accomplished as planned by the Contractor. The basic concept of a network analysis diagram shall be followed to show how the start of a given activity is dependent on the completion of preceding activities and its completion restricts the start of following activities.

B. Break the work into activities with durations no longer than 30 working days each, except as to non-construction activities (such as procurement of materials and delivery of equipment) and any other activities for which the Engineer may approve the showing of longer duration. To the extent feasible, activities related to a specific physical area of the work shall be grouped on the network for ease of understanding and simplification.

C. Separate activities shall be provided for each significant identifiable function in each trade area. Activities shall be so identified that there will be no reasonable doubt as to how much work remains on each.

D. Each activity on the network shall have the following information.

1. A single duration (i.e., the single best estimate of elapsed time considering the scope of the work involved in the activity and the resources planned for accomplishing the activity) expressed in working days.

2. A five character (or less) code indicative of the party responsible for accomplishing the activity.

3. A brief description of the activity.


PROJECT NO: 1410-72284 01311 - 2

E. The selection and number of activities shall be subject to the Engineer's approval. The detailed network need not be time scaled but shall be drafted to show a continuous flow from left to right with no flow from right to left.

F. To the extent that the network or any revision thereof shows anything not jointly agreed upon or fails to show anything jointly agreed upon, it shall not be deemed to have been approved by the Engineer. Failure to include on a network any element of work required for the performance of this Contract shall not excuse the Contractor from completing all work required within any applicable completion date, notwithstanding the review of the network by the Engineer.

G. Except where earlier completions are specified, schedules which show completion of all work prior to the contract completion date may be approved by the Engineer but in no event shall they be acceptable as a basis for claim for delay against the City by the Contractor.

1.03 APPROVED SCHEDULE

A. Within 15 days following the receipt of the Notice to Proceed, submit two prints of the proposed schedule, and corresponding executable software file, to the Engineer. Following review by the Engineer, the Contractor shall incorporate the Engineer's comments into the schedule and submit five prints of the proposed schedule, and corresponding executable software file, to the Engineer. This final submittal shall be delivered to the Engineer within 45 days after the Notice to Proceed.

B. Approval of the schedule by the Engineer is advisory only and shall not relieve the Contractor of responsibility for accomplishing the work within the contract completion date. Omissions and errors in the approved schedule shall not excuse performance less than that required by the Contract. Approval by the Engineer in no way makes the Engineer an insurer of the schedule's success or liable for time or cost overruns flowing from its shortcomings. The City hereby disclaims any obligation or liability by reason of approval by its agent, the Engineer, of the schedule.

1.04 PROGRESS REPORTING

A. Progress under the approved schedule shall be evaluated monthly by the Contractor and the Engineer. Not less than 7 calendar days prior to each monthly progress meeting, they shall meet and jointly evaluate the status of each activity on which work has started or is due to start, based on the preceding schedule; to show actual progress, to identify those activities started and those completed during the previous period, to show the estimated time required to complete or the percent complete of each activity started but not yet completed and to reflect any changes indicated for the schedule. Activities shall not be considered to be complete until they are, in fact, 100 percent complete.

B. The Engineer will produce from this evaluation, at no expense to the Contractor, an updated schedule for the project.

C. At each progress meeting, submit a narrative report based on the schedule evaluation described above, in a format agreed upon by the Contractor and the Engineer. The report shall include a description of the progress during the previous period in terms of completed activities, an explanation of each activity which is showing a delay, a description of problem areas, current and anticipated delaying factors and their estimated impact on performance of other activities


PROJECT NO: 1410-72284 01311 - 3

and completion dates and an explanation of corrective action taken or proposed. This report, as well as the updated schedule, will be discussed at each progress meeting.

1.05 RESPONSIBILITY FOR SCHEDULE COMPLIANCE

A. Whenever it becomes apparent from the current schedule and progress meetings that delays to have resulted and the contract completion date will not be met, or when so directed by the Engineer, take some or all of the following actions at no additional cost to the City. Submit to the Engineer for approval, a written statement of the steps intended to take to remove or arrest the delay to the approved schedule.

1. Increase construction manpower in such quantities and crafts as will substantially eliminate the backlog of work.

2. Increase the number of working hours per shift, shifts per day, working days per week, the amount of construction equipment, or any combination of the foregoing, sufficiently to substantially eliminate the backlog of work.

3. Reschedule activities to achieve maximum practical concurrence of accomplishment of activities and comply with the revised schedule.

B. If when so requested by the Engineer, failure to submit a written statement of the steps intended to take or should fail to take such steps as approved by the Engineer, the Engineer may direct the Contractor to increase the level of effort in manpower, equipment, and work schedule (overtime, weekend and holiday work, etc) to be employed by the Contractor in order to remove or arrest the delay to the approved schedule and the Contractor shall promptly provide such level of effort at no additional cost to the City.

1.06 ADJUSTMENT OF CONTRACT SCHEDULE AND COMPLETION TIME

A. If the Contractor desires to make changes in his/her method of operating which affect the approved schedule, he/she shall notify the Engineer in writing stating what changes are proposed and the reason for the change. If the Engineer approves these changes, the Contractor shall revise and submit for approval, without additional cost to the City, all of the affected portions of the project network. The schedule shall be adjusted by the Contractor only after prior approval of his/her proposed changes by the Engineer. Adjustments may consist of changing portions of the activity sequence, activity durations, division of approved activities, or other adjustments as may be approved by the Engineer.

B. Shop drawings which are not approved on the first submittal or within the schedule time and equipment which do not pass the specified tests shall be immediately rescheduled.

C. The contract completion time will be adjusted only for causes specified in this Contract. In the event the Contractor requests an extension of any contract completion date, he/she shall furnish such justification and supporting evidence as the Engineer may deem necessary to determine whether the Contractor is entitled to an extension of time under the provisions of this Contract. The Engineer will, after receipt of such justification and supporting evidence, make findings of fact and will advise the Contractor in writing thereof. If the Engineer finds that the Contractor is entitled to any extension of any contract completion date, the Engineer's determination as to the total number of days extension shall be based upon the currently approved schedule and on all data relevant to the extension. Such data shall be included in the next updating of the


PROJECT NO: 1410-72284 01311 - 4

schedule. Actual delays in activities which, according to the schedule, do not affect any contract completion date will not be the basis for a change therein.

D. Each request for change in any contract completion date shall be submitted by the Contractor to the Engineer within 30 days after the beginning of the delay for which a time extension is requested but before the date of final payment under this Contract. No time extension will be granted for requests which are not submitted within the foregoing time limit.

1. From time to time it may be necessary for the contract schedule or completion time to be adjusted by the City to reflect the effects of job conditions, weather, technical difficulties, strikes, unavoidable delays on the part of the City or its representatives and other unforeseeable conditions which may indicate schedule adjustments or completion time extensions. Under such conditions, the Engineer will direct the Contractor to reschedule the work or contract completion time to reflect the changed conditions and the Contractor shall revise his/her schedule accordingly. No additional compensation will be made to the Contractor for such schedule changes except for unavoidable overall contract time extensions beyond the actual completion of all unaffected work, in which case the Contractor shall take all possible action to minimize any time extension and any additional cost to the City. Available float time in the schedule may be used by the City as defined by the Engineer, as well as by the Contractor.

E. The City controls the float time in the approved schedule and, therefore, without obligation to extend either the overall completion date or any intermediate completion dates set out in the schedule, the City may initiate changes to the work that absorb float time only. City initiated changes that affect the critical path on the approved schedule shall be the sole grounds for extending (or contracting) said completion dates. Contractor-initiated changes that encroach on the float time identified in the approved schedule may be accomplished with the City's concurrence. Such changes, however, shall give way to City-initiated changes competing for the same float time.



END OF SECTION


PROJECT NO. 1410-72284 01500 - 1

SECTION 01500

TEMPORARY FACILITIES

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, equipment, materials, and incidentals necessary and provide separate temporary facilities for the Contractor’s use and the Engineer’s use, as specified herein and as shown on the drawings.

B. Operate and maintain temporary facilities for the duration of the project and as directed by the Engineer. All cost and use charges for temporary facilities shall be included in the Contract Price.

1.02 RELATED WORK

A. Control of Work is included in Section 01046.

B. Construction Waste Management and Disposal is included in Section 01524.

1.03 SUBMITTALS

A. Submit shop drawings and product data, in accordance with Section 01300, showing materials of construction and details of installation for:

1. Site Plan: Show the proposed locations for temporary facilities including offices, temporary utilities, storage containers/buildings, vehicle access and parking areas, material lay-down and staging areas, temporary fencing, and other security measures.

2. Engineer’s Field Office: Dimensioned floor plan, office systems, furnishings, and equipment.

3. Temporary Fence: Layout drawings which indicate dimensions, access to fire hydrants, gate locations and opening sizes, and other site specific requirements.

4. Project Sign: Layout, graphics, and wording.

B. Submittals shall be received by the Engineer no later than the date of the Preconstruction Meeting.

1.04 QUALITY ASSURANCE

A. Temporary facilities shall comply with all applicable state and local ordinances, codes and regulations.

B. Coordinate with authorities having jurisdiction to inspect (and test if required) temporary facilities.

C. Obtain all required permits for temporary facilities.


PROJECT NO. 1410-72284 01500 - 2

1.05 DEFINITIONS

A. Duration of the project: The period of time from the date of the Notice to Proceed to the date of Final Completion, inclusive.

PART 2 PRODUCTS

2.01 MATERIALS

A. Temporary Fence: Fabric shall be No. 9 gauge galvanized wire woven in 2-in diamond mesh with top and bottom twisted selvage. Intermediate and terminal posts shall be galvanized steel H or pipe, minimum 2-3/8-in OD line posts, 2-7/8-in OD corner and pull posts, and 1-5/8-in OD top rails.

B. Project Sign: Plywood shall be A-A EXT-APA grade, 1-in thick. Posts and braces shall be pressure treated lumber.

2.02 EQUIPMENT

A. Fire Extinguishers: Provide portable, UL-rated with class and extinguishing agent required by locations and classes of fire exposure. Provide at least one for each trailer/office.

B. Temporary Heat: Provide vented, self-contained, liquid propane gas or fuel oil heaters with individual space thermostatic control. Equipment shall be listed and labeled for type of fuel consumed and marked for intended use.

2.03 Engineer’s Field Office

A. General:

1. Provide minimum 8-ft by 10-ft office trailer for the Engineer’s exclusive use for the duration of the project.

2. The engineer’s field office shall be weather-tight construction with floor, walls, and ceiling completely insulated. Each room shall have at least one operating window. Each window shall have a blind and full insect screen. Furnish two sets of keys for each exterior door. Provide steps, platforms, handrails, and boot scrapers for each exterior door.

3. Field office trailer shall be Mobile Mini, ModSpace, Williams Scotsman, or equal. Converted storage or box containers will not be acceptable. Alternatively, Engineer’s Field Office can be provided as a dedicated room within the Contractor’s Field Office, as specified in Paragraph 3.02.

B. Furnishings

1. Contractor shall provide the following furnishings for the Engineer’s temporary field office for the duration of the project. All furnishings shall be new, or in very good condition, subject to approval of the Engineer.

a. One desk with file drawer and 2 drawers, all lockable and an upholstered swivel type chair with arms.

b. One wastebasket.


PROJECT NO. 1410-72284 01500 - 3

c. If potable water not available, one electric bottled water dispenser with hot and cold outlets and refrigerator unit. Adequate water bottles shall be provided (and paid for by the Contractor) until Final Completion.

d. One smoke detector, with batteries.

e. One first aid kit, OSHA (1910.151.b) and ANSI (Z308.1-2003) compliant, suitable for two people.

C. Equipment

1. Contractor shall provide the following equipment for the Engineer’s temporary field office for the duration of the project. All equipment shall be new, or in very good condition.

a. A multifunction Photocopier, printer, facsimile and scanner.

1) With 50-sheet auto-feeder, capable of copying and printing.

2) Letter-sized and legal-sized documents.

3) Contractor to provide paper and ink cartridges, as required, for the duration of the project.

b. One 6-outlet surge protectors with six foot cord and minimum 1800-joule energy rating or greater; as manufactured by Belkin, or equal.

D. Services

1. Provide the following services for the duration of the project. Services shall include all costs for installation, use, maintenance, and removal of all products, services and equipment billed by each provider for each service specified herein.

2. Field office shall have complete and fully functional electrical and HVAC systems. Provide at least one smoke detector hard-wired into the electrical system. Perform all scheduled and unscheduled maintenance for all systems and as directed by the Engineer.

3. Electrical System: Provide connection to temporary electric service. Comply with the electrical requirements of the furnished office trailer. Provide main circuit panel, sufficient GFCI outlets and lighting in each room, exterior lights at each exterior door, and proper grounding of entire electrical system.

4. HVAC System: Provide central heating and air conditioning system with programmable thermostat. System shall be capable of maintaining an interior temperature of 70°F when the exterior temperature is 0°F and an interior temperature of 75°F when the exterior temperature is 100°F.

PART 3 EXECUTION

3.01 ENGINEER’S OFFICE

A. Engineer’s trailer shall be set up and ready for occupancy within 30 days of the Notice to Proceed and prior to commencement of Work at the site. All systems, furnishings, equipment,


PROJECT NO. 1410-72284 01500 - 4

and services specified herein shall be furnished, installed, and completely operational for the field office to be considered established.

1. Provide regular office cleaning services for the duration of the project.

2. Provide supplies including, but not limited to, paper towels, light bulbs, air conditioner filters, etc.

3. Provide office supplies for printers and fax machines, etc.

4. Supply all fuel for heating and pay all utility bills.

B. Install field office plumb and level.

C. Engineer’s trailer shall be removed and the site shall be cleaned up and restored before Final Completion of the project.

3.02 CONTRACTOR’S FIELD OFFICE

A. Provide a temporary field office(s) for the Contractor’s use for the duration of the project. An authorized representative of the Contractor shall be present at all times while the Work is in progress. Instructions received at the Contractors field office from the Engineer shall be considered delivered to the Contractor.

B. Locate field office(s) in accordance with approved shop drawings and as directed by the City.

C. Establish and occupy field office within 30 days of the Notice to Proceed, unless otherwise approved by the Engineer or City.

3.03 TEMPORARY POWER AND LIGHT

A. The Contractor shall furnish temporary light and power, complete with wiring, lamps and similar equipment as required to adequately light all work areas and with sufficient power capacity to meet the project needs. Make all necessary arrangements with the local electric company for temporary electric service and pay all expenses in connection therewith.

B. Provide properly configured NEMA polarized outlets to prevent insertion of 110-120 Volt plugs into higher voltage outlets. For connection of power tools and equipment, provide outlets equipped with ground-fault circuit interrupters, reset button and pilot light.

C. Provide grounded extension cords. Use heavy duty cords where exposed to abrasion and traffic. Provide waterproof connectors to connect separate lengths of electric cords if more than one length is required.

3.04 TEMPORARY HEAT

A. Provide heat as may be necessary for thawing out and heating the ground or materials and for proper execution, protection and drying-out of the Work.

3.05 WEATHER PROTECTION

A. Contractor shall furnish, install and maintain temporary heat and enclosures to provide adequate working areas for personnel during the cold weather months.


PROJECT NO. 1410-72284 01500 - 5

B. The Contractor shall furnish temporary heating units (UL or FM listed) to maintain reasonable temperatures within temporary enclosures.

3.06 TEMPORARY AIR, STEAM AND WATER

A. The Contractor, and each subcontractor, shall provide all air, steam and water including piping and appurtenances required for testing pipelines and equipment installed by them. Remove temporary piping and appurtenance on completion of testing.

3.07 SANITARY FACILITIES

A. The Contractor shall provide self-contained, single occupant toilet units of the chemical, aerated recirculation, or combustion type, properly vented and fully enclosed in a fiberglass or other approved non-absorbent shell.

3.08 CONSTRUCTION AIDS

A. Provide temporary elevators, hoists, cranes, scaffolding and platforms as necessary to perform the Work. Provide temporary stairs where ladders are not adequate.

3.09 VEHICLE ACCESS AND PARKING

A. Provide temporary access roads, parking areas, traffic control devices and staging areas as approved by the Engineer and City.

B. Provide minimum 10-ft by 20-ft by 6-in deep dense graded crushed stone or paved parking area adjacent to Engineer’s field office for exclusive use by the Engineer for the duration of the project.

C. Clear snow and ice from all drives, walks, and stairs to maintain safe vehicle and pedestrian access to the site and facilities as directed by the Engineer.

3.10 TEMPORARY FENCE

A. Maintain temporary fence as shown on the Drawings, as specified herein, and as the Contractor requires for site security.

1. Maintain existing 6-ft high chain link fence access gates. Gates shall be equipped with locking hardware and padlocks. Furnish two sets of keys to Engineer and City. Coordinate with local first responders for access during non-work hours.

2. Perform daily inspections of fence and immediately repair or replace damaged or compromised sections and as directed by the Engineer.

3.11 WASTE MANAGEMENT

A. Provide an adequately sized covered dumpster(s), minimum 4-cubic yards, dedicated for field office waste and construction debris. Empty dumpster(s) on a regular basis and as directed by the Engineer. Dumpster(s) shall not exceed their capacities at any time.


PROJECT NO. 1410-72284 01500 - 6

3.12 REMOVAL AND RESTORATION

A. Remove each temporary facility complete when need for its service has ended and as approved by the Engineer. Coordinate removal of temporary facilities with authorities having jurisdiction.

B. Restore all improvements damaged by the installation, operation, and removal of the temporary facilities. Obtain prior approval from City and Engineer for restoration work.

END OF SECTION


PROJECT NO. 1410-72284 01524 - 1

SECTION 01524

CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

PART 1 GENERAL

1.01 SCOPE OF WORK

A. This Section includes administrative and procedural requirements for the following:

1. Recycling nonhazardous demolition and construction waste.

2. Disposing of nonhazardous demolition and construction waste.

1.02 RELATED WORK

A. Temporary Facilities are included in Section 01500.

B. Crushed concrete use for disposition of waste resulting from demolition and partial demolition of the caisson is included in Section 02230.

1.03 SUBMITTALS

A. Submit, in accordance with Section 01300:

1. Recycling and Processing Facility Records: Indicate receipt and acceptance of recyclable waste by recycling and processing facilities licensed to accept them. Include manifests, weight tickets, receipts, and invoices.

2. Landfill and Incinerator Disposal Records: Indicate receipt and acceptance of waste by landfills and incinerator facilities licensed to accept them. Include manifests, weight tickets, receipts, and invoices.

1.04 REFERENCES (NOT USED)

1.05 DEFINITIONS

A. Construction Waste: Building and site improvement materials and other solid waste resulting from construction, remodeling, renovation, or repair operations. Construction waste includes packaging.

B. Demolition Waste: Building and site improvement materials resulting from demolition or selective demolition operations.

C. Disposal: Removal off-site of demolition and construction waste and subsequent sale, recycling, reuse, or deposit in landfill or incinerator acceptable to authorities having jurisdiction.

D. Recycle: Recovery of demolition or construction waste for subsequent processing in preparation for reuse.


PROJECT NO. 1410-72284 01524 - 2


A. Regulatory Requirements: Comply with hauling and disposal regulations of authorities having jurisdiction.


PART 3 EXECUTION

3.01 PLAN IMPLEMENTATION

A. General: Provide handling, containers, storage, signage, transportation, and other items as required to manage waste during the entire duration of the Contract.

B. Site Access and Temporary Controls: Conduct waste management operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

1. Designate and label specific areas on Project site necessary for separating materials that are to be salvaged, recycled, reused, donated, and sold.

2. Comply with Section 01500 for controlling dust and dirt, environmental protection, and noise control.

3.02 RECYCLING DEMOLITION AND CONSTRUCTION WASTE, GENERAL

A. General: To the extent practical recycle paper and beverage containers used by on-site workers.

B. Recycling Incentives: Revenues, savings, rebates, tax credits, and other incentives received for recycling waste materials shall accrue to Contractor.

C. Procedures: Separate recyclable waste from other waste materials, trash, and debris. Separate recyclable waste by type at Project site to the maximum extent practical.

1. Provide appropriately marked containers or bins for controlling recyclable waste until they are removed from Project site. Include list of acceptable and unacceptable materials at each container and bin.

a. Inspect containers and bins for contamination and remove contaminated materials if found.

2. Stockpile processed materials on-site without intermixing with other materials. Place, grade, and shape stockpiles to drain surface water. Cover to prevent windblown dust.

3. Stockpile materials away from construction area. Do not store within drip line of trees.

4. Protect from the weather.

5. Remove recyclable waste off City's property and transport to recycling receiver or processor.

3.03 RECYCLING DEMOLITION WASTE

A. Concrete Disposed Off-site: Demolish concrete to sufficient size to transport and handle concrete debris in accordance with local and state regulations.


PROJECT NO. 1410-72284 01524 - 3

B. Concrete Disposed within Caisson: Remove reinforcement and other metals from concrete and sort with other metals.

1. Reduce/crush concrete to maximum 6-inch size.

2. Crush concrete may be placed as a fill material inside the caisson below Type I and Type II Clay materials, as shown on the Contract Drawings.

3. No other construction debris or waste shall be deposited inside the caisson or otherwise left on-site.

C. Wood Materials: Sort and stack members according to size, type, and length. Separate lumber, engineered wood products, panel products, and treated wood materials. No wood material shall be placed as a fill material inside the caisson

D. Metals (including sheet piles and rebar): Separate metals by type if required by the recycling facility accepting the materials.

3.04 RECYCLING CONSTRUCTION WASTE

A. Packaging (e.g. cardboard, boxes, bags, polystyrene packaging, pallets, and crates) recycle in compliance with local regulations, and break down, bundle, and/or store as required the recycling facility designated to accept the materials.

B. Site-Clearing Wastes: Chip brush, branches, and trees at landfill facility.

3.05 DISPOSAL OF WASTE

A. General: Except for items or materials to be salvaged, recycled, or otherwise reused, remove waste materials from Project site and legally dispose of them in a landfill or incinerator acceptable to authorities having jurisdiction.

1. Except as otherwise specified, do not allow waste materials that are to be disposed of accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

B. Burning: Do not burn waste materials.

C. Disposal: Transport waste materials off City's property and legally dispose of them

END OF SECTION


PROJECT NO. 1410-72284 02050 - 1

SECTION 02050

DEMOLITION, REPAIRS AND MODIFICATIONS

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and demolish, repair, modify, remove and dispose of work shown on the Drawings and as specified herein.

B. Included, but not limited to, are demolition, modifications and removal of existing materials, equipment or work necessary to install the new work as shown on the Drawings and as specified herein and to connect with existing work in approved manner.

C. Demolition, modifications and removals which may be specified under other Sections shall conform to requirements of this Section.

D. Demolition, repair and modifications include:

1. Existing caisson rebar, concrete structure, and any existing temporary structures left in place as shown on the contract drawings.

2. Existing water treatment facilities

3. Remove all temporary sheeting or forming work extending above the reinforcing structure at areas where the existing concrete structure top elevation is below the 590 feet elevation.

4. Remove delaminated concrete inside the caisson in the area and to the depth shown on the contract drawings.

5. Remove all exposed reinforcing steel within the delaminated concrete area within the limits shown of the contract drawings.

6. Remove concrete and reinforcing steel at inside face of the caisson as shown on contract drawings.

7. Repair the seal on external joints on diversion conduit as shown on the Drawings.

1.02 RELATED WORK

A. Summary of Work is included in Section 01010.

B. Submittals are included in Section 01300.

C. Construction Schedule is included in Section 01311.

D. Erosion and Sedimentation Control is included in Section 02270.

SUBMITTALS

A. Submit, in accordance with Section 01300, six copies of proposed materials, methods and operations of demolition of the structures and modifications prior to the start of work. Include in the schedule the coordination of caisson dewatering.


PROJECT NO. 1410-72284 02050 - 2

1.03 JOB CONDITIONS

A. Protection

1. Execute the demolition and removal work to prevent damage or injury to adjacent structures and so as not to interfere with the use, and free and safe passage to and from adjacent structures.

2. Closing or obstructing of roadways, sidewalks and passageways adjacent to the work by the placement or storage of materials will not be permitted and all operations shall be conducted with a minimum interference to traffic on these ways.

B. Scheduling

1. Carry out operations so as to avoid interference with operations and work in the existing facilities.

2. Demolition operations shall comply with all applicable State and Local requirements. Where conflicts exist the more stringent requirement shall apply.

C. Notification

1. At least 48 hours prior to commencement of a demolition or removal, notify the Engineer in writing of proposed schedule therefore. No demolition shall be started without the permission of the Engineer.

D. Conditions of Structures

1. The Owner and the Engineer assume no responsibility for the actual condition of the structures to be demolished or modified.

2. Conditions existing at the time of inspection for bidding purposes will be maintained by the Owner insofar as practicable. However, variations within a structure may occur prior to the start of demolition work.

E. Repairs to Damage

1. Promptly repair damage caused to adjacent facilities by demolition operation when directed by Engineer and at no additional cost to the Owner. Repairs shall be made to a condition at least equal to that which existed prior to construction.

F. Traffic Access

1. Conduct demolition and modification operations and the removal of equipment and debris to ensure minimum interference with roads, streets, walks both onsite and offsite and to ensure minimum interference with occupied or used facilities.

2. Do not close or obstruct streets, walks or other occupied or used facilities without permission from the Engineer. Furnish alternate routes around closed or obstructed traffic in access ways.

1.04 RULES AND REGULATIONS

A. The Building Code of the State of Michigan shall control the demolition, modification or alteration of the existing buildings or structures.


PROJECT NO. 1410-72284 02050 - 3

B. No building or structure, or any part thereof, shall be demolished until an application has been filed with the Building Inspector and a permit issued. The fee for this permit shall be the Contractor's responsibility.

1.05 DISPOSAL OF MATERIAL

A. All material and items of equipment shall become the Contractor's property.

1. Concrete demolished may be crushed and reused on-site as backfill material meeting the requirements of Section 02230.

2. All other demolition material must be removed from the site.

B. The Disposal of the demolition material will be the responsibility of the contractor at no additional cost to the City of Dearborn

PART 2 PRODUCTS

2.01 JOINTING PRECAST BOX CONDUIT SECTIONS

A. Exposed box conduit joints shall be repaired to prevent soil intrusion using:

1. Culvert joint sealer compound to be applied to exterior of each box conduit joint.

2. Geo-textile blanket, 36” width.

PART 3 EXECUTION

3.01 GENERAL

A. All materials and equipment removed from existing work shall become the property of the Contractor, except for those which the Owner has identified and marked for his/her use. All materials and equipment marked by the Owner to remain shall be carefully removed, so as not to be damaged, cleaned and stored on or adjacent to the site in a protected place specified by the Engineer or loaded onto trucks provided by the Owner.

B. Dispose of all demolition materials, equipment, debris and all other items not marked by the Owner to remain, off the site and in conformance with all existing applicable laws and regulations.

C. Pollution Controls

1. Use water sprinkling, temporary enclosures and other suitable methods to limit the amount of dust and dirt rising and scattering in the air to the lowest practical level. Comply with governing regulations pertaining to environmental protection.

a. Do not use water when it may create hazardous or objectionable conditions such as ice, flooding and pollution.

b. Clean adjacent structures, facilities, and improvements of dust, dirt and debris caused by demolition operations. Return adjacent areas to conditions existing prior to the start of the work.

D. Building Demolition (Not used)

E. Box Culvert Joints – All exposed conduit joints shall be repaired to like installed condition by removing any loose geo-textile material and loose soil, applying filler material to any joints that have gaps larger than ½” present, applying culvert joint sealer compound from the center to 18-inch on each side of the joint over the exposed area, and applying the geo-textile centered on


PROJECT NO. 1410-72284 02050 - 4

the joint. Pressure shall be applied to the geo-textile at each joint to properly adhere it to the sealer. At least 4” of gravel shall be placed on all horizontal surfaces until backfilling of the culvert is accomplished. Inspection of the vertical joints shall be performed just prior to backfilling to verify that the geo-textile is adhered to the joint prior to placement of the backfill material.

3.02 STRUCTURAL REMOVALS

A. Remove structures to the lines and grades shown unless otherwise directed by the Engineer.

3.03 MECHANICAL REMOVALS (NOT USED)

3.04 CLEAN-UP

A. Remove from the site all debris resulting from the demolition operations as it accumulates. Upon completion of the work, all materials, equipment, waste and debris of every sort shall be removed and premises shall be left, clean, neat and orderly.

END OF SECTION


PROJECT NO. 1410-72284 02145 - 1

SECTION 02145

CAISSON DEWATERING, WATER COLLECTION AND PRETREATMENT

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish the services specified in this Section for the drainage and / or removal of water from the inside of the existing shaft, lowering of the water during shaft closure, and pretreatment of the water. Pretreatment consists of chemical process, control of suspended solids, and any other unsuitable substances from the dewatering process required to comply with the City of Dearborn discharge permit.

B. Design, furnish, install, operate, monitor, maintain and remove or abandon the temporary dewatering system as required and lower and control water levels below subgrades of excavations to permit the construction as shown on Contract Drawings. All water shall be pretreated to comply with all local, state, and federal requirements prior to discharge.

C. Obtain all required permits for dewatering and pretreatment.

1.02 RELATED WORK

A. Submittals are included in Section 01300.

B. Earthwork is included in Section 02200.

C. Caisson Backfill, Cap and Cover Installation are included in Section 02230.

D. Erosion and Sedimentation Control are included in Section 02270.

E. Topsoil and Seeding are included in Section 02930.

1.03 DESIGN AND PERFORMANCE RESPONSIBILITY

A. The Contractor shall be solely responsible for the proper design and operation of all dewatering and pretreatment system.

B. The Contractor shall be solely responsible for damage to properties, buildings or structures, sewers and other utility installations, pavements, sidewalks and work adjacent to the caisson that may result from its operations.

C. Design review and field monitoring activities by the City or the Engineer shall not relieve the Contractor of its responsibilities for the work.

1.04 SUBMITTALS

A. Dewatering system designs shall be prepared by a licensed professional engineer retained by the Contractor. The Contractor shall submit an original and three copies of the licensed professional engineer's certification on the PE form specified in Section 01300. The Contractor shall also submit qualifications as required herein.


PROJECT NO. 1410-72284 02145 - 2

B. The Contractor shall submit a dewatering system design plan. The plan shall include a description of the proposed dewatering system and include the proposed installation methods to be used for dewatering system elements and method to monitor the effectiveness of the dewatering. The plan shall include pumps, equipment, installation methods, holes sizes, filter sand placement techniques, sealing materials, development techniques, the number and location of dewatering points and dewatering monitoring elements, etc. Include the dewatering system design calculations in the plan.

C. The plan shall identify the anticipated area influenced by the dewatering system and address impacts to adjacent existing and proposed structures

D. Coordinate dewatering and drainage submittals with the backfilling, excavation, and support of excavation submittals. The submittal shall show the areas and depths of backfill or excavation to be dewatered.

E. Do not proceed with any excavation or dewatering activities until the dewatering submittals has been accepted by the Engineer.


A. Regulations: Perform all work in accordance with current applicable regulations and codes of all Federal, State and local agencies.

B. The Contractor’s design engineer shall be registered in the State in which the work is located and have a minimum of 5 years of professional experience in the design and construction of dewatering systems and shall have completed not less than 5 successful dewatering and drainage projects of equal type, size, and complexity to that require for the work.

PART 2 PRODUCTS

2.01 MATERIALS

A. Piping, pumping equipment and all other materials required to provide water collection and pretreatment shall be suitable for the intended purpose. Standby pumping units shall be maintained at the site to be used in case of failure of the normal pumping units.

PART 3 EXECUTION

3.01 WATER COLLECTION AND ANALYSIS

A. Coordinate with the City to take over control of the existing Water Treatment Plant, and collect and test effluent samples as required per permit requirements through completion of the project.

B. Treatment and disposal of water shall follow specifications provided by City of Dearborn. The filtration system furnished shall consistently achieve an effluent criterion in compliance with the all applicable local, state, and federal regulations for discharge.

C. Prior to final completion of the project ,remove influent piping up to the envelope of the Water Treatment Plant, and demolish the Water Treatment Plant as specified in Section 02050 and restore the ground surface within footprint of Water Treatment Plant to maintain positive site drainage.

END OF SECTION


PROJECT NO. 1410-72284 02230 - 1

SECTION 02230

CAISSON BACKFILL, CAP AND COVER INSTALLATION

PART 1 GENERAL

1.01 STATUTORY REQUIREMENTS

A. All excavation, trenching, sheeting, bracing, etc shall comply with the requirements of OSHA excavation safety standards (29 CFR Part 1926.650 Subpart P), Michigan Construction Safety Standard Part 9, Excavation, Trenching, and Shoring, and all other State and local requirements. Where conflict between OSHA, State and local regulations exists, the most stringent requirements shall apply.

1.02 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and perform all excavation work and grading; obtain materials for filling and backfilling the caisson, place and compact backfill and fill; and dispose of unsuitable, waste and surplus materials as shown on the Drawings and as specified herein.

B. Provide the services of a licensed professional engineer registered in the State of Michigan to prepare temporary excavation support system designs and submittals.

C. Where necessary, furnish and install temporary excavation support systems, and working platforms including sheeting, shoring and bracing, and floating platforms to insure the safety of personnel and protect adjacent structures, piping, etc, in accordance with Federal, State and local laws, regulations and requirements. Where conflicts exist the most stringent requirements shall apply.

D. The scope of work includes the construction of a cap over the caisson extending beyond the limits of the caisson as shown on the Drawings and within the limit of construction also indicated in the Drawings. Final grading shall be done according to the specification herein. To perform the scope of work it is assumed that the contractor may be required to perform additional preparatory work not described in this scope of work; this work will be considered as incidental to the scope of work.

1.03 RELATED WORK

A Submittals are included in Section 1300

B. Caisson Dewatering, Collection, and Pretreatment is included in Section 02145.

C. Erosion and Sedimentation Control is included in Section 02270.

D. Topsoil and Seeding is included in Section 02930.

1.04 SUBMITTALS

A. Submit, in accordance with Section 01300, complete product data for materials specified in this Section.


PROJECT NO. 1410-72284 02230 - 2

B. Submit the name, address, and key personnel resumes for an independent soils laboratory to be employed by the Contractor to complete soil testing.

C. Excavation support and floating platform system designs shall be prepared by a licensed professional engineer, registered in the State of Michigan, having a minimum of 5 years of professional experience in the design and construction of excavation support systems. Submit an original and three copies of the licensed professional engineer's certification, stating that the excavation support systems designs have been prepared by the professional engineer and that the professional engineer will be responsible for their execution. Do not submit excavation support system designs unless requested in writing.

1.05 REFERENCE STANDARDS

A. American Society for Testing and Materials (ASTM)

1. ASTM C33 Standard Specification for Concrete Aggregates

2. ASTM D422 - Test Method for Particle Size Analysis of Soils

3. ASTM D1557 - Test Method for Laboratory Compaction Characteristics of Soil Using Modified Effort

4. ASTM D5084 - Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter

B. Michigan Department of Transportation (MDOT) Standard Specifications for Construction.

C. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.


A. Laboratory Testing results, and determinations of imported material suitability, shall be delivered to the Engineer no later than five (5) days prior to the placement of backfill or fill materials.

B. Prior to and during the placement of backfill and fill coordinate with the soils testing agency to perform in-place soil density tests to verify that the backfill/fill material has been compacted in accordance with the compaction requirements specified herein. The Engineer may designate areas to be tested.

1.07 DELIVERY, STORAGE AND HANDLING

A. If fill materials are delivered to the site prior to placement approval, materials shall be temporarily stockpiled on site in areas approved by the Engineer. Provision shall be implemented to minimize surface water impact on the stockpile. Removal and placement of fill material shall be done in a manner to minimize intrusion of soils adjacent to and beneath the stockpile. No material will be allowed to be stock piled at the site for any period more than 5 days.

1.08 DEFINTIONS

A. Where the phrase "in-the-dry" is used in this Section, it shall be defined to mean a condition where the ground water level naturally occurs, or is artificially maintained by dewatering, at a


PROJECT NO. 1410-72284 02230 - 3

minimum level of 2 feet below the elevation of material placement, and the ground surface is free of all free standing water.

B. Where the phrase “in-the-wet” is used in this Section, it shall be defined to mean fill material placed below water within the caisson.

C. Where used in this Section "structures" refers to wet wells, manholes, and sanitary sewer conveyance, and existing buildings and caisson. Stormwater structures and duct banks are not considered structures in this context.

PART 2 PRODUCTS

2.01 MATERIALS

A. Bentonite where shown on the Drawings shall be a premium grade coarse granular sodium montmorillonite. Bentonite shall have a minimum free swell of 24 ml/ 2 g. Granular Bentonite shall have a minimum of 98 percent passing the number 4 sieve, and a maximum of 5 percent passing the number 50 sieve. Furnish the bentonite to be used and a statement from the supplier detailing the properties and composition of the product.

B. Clay material: Two types of clay material are defined for the construction of the clay cap: Type I Clay Material shall be used inside the caisson, and Type II Clay Material shall be used above and around the caisson as designated on the Drawings. Clay material shall be from a site source approved by the Engineer.

1. Type I Clay shall be used to construct the hydraulic plug inside the caisson. The material shall be as specified under the Unified Soil Classification System as CH in accordance with ASTM D2487, and shall have a hydraulic conductivity less than or equal to 1x10-7

cm/sec as determined by ASTM D5084.

a. One fifty-pound soil sample from the material source shall be submitted to the soils laboratory to confirm the soil grain size analyses and USCS Classification tested in accordance with ASTM D422 including hydrometer testing, determine the maximum dry density by the modified proctor compaction test, ASTM D1557, and the Atterberg Limits and Plasticity Index in accordance with ASTM D4318. Certified results shall be sent to the Engineer for review and acceptance prior to delivering any material to the site.

2. Type II Clay shall be used above and on the outside of the caisson. Type II Clay shall be as specified under the Unified Soil Classification System as CH or CL in accordance with ASTM D2487, and shall have a hydraulic conductivity less than or equal to 1x10-6

cm/sec.

a. One fifty-pound soil sample from the material source shall be submitted to the soils laboratory to confirm the soil grain size analyses and USCS Classification tested in accordance with ASTM D422 including hydrometer testing, determine the maximum dry density by the modified proctor compaction test, ASTM D1557, and the Atterberg Limits and Plasticity Index in accordance with ASTM D4318. Certified results shall be sent to the Engineer for review and acceptance prior to delivering any material to the site.


PROJECT NO. 1410-72284 02230 - 4

b. Type II Clay may be from the same source as Type I Clay material. If the same material source is utilized, only one fifty-pound sample, and associated test set is required prior to material delivery.

C. Common Fill used as backfill and landscaped areas shall consist of granular soil free of organic material, debris, frozen soil, or other deleterious materials and classified as SM, SM-SP, SP, SW, GM, GM-GP, GW, ML, or CL in accordance with ASTM D2487. Common Fill shall not contain stones larger than 3 inches and have not more than 60 percent by dry weight passing No. 200 sieve.

a. One fifty-pound soil sample from each common fill source shall be submitted to the soils laboratory to determine the soil grain size analyses and USCS Classification tested in accordance with ASTM D422 including hydrometer testing, determine the maximum dry density by the modified proctor compaction test, ASTM D1557, and the Atterberg Limits and Plasticity Index in accordance with ASTM D4318. Certified results shall be sent to the Engineer for review and acceptance prior to delivering any material to the site.

D. Granular Drainage Material shall be clean, open graded gravel or MDOT accepted erosion control material. MDOT No. 2G, 3G, 4G, Course Gravel, 3x1 aggregates, Cobblestone, and Plain Riprap shall be acceptable.

E. Pervious Fill shall be suitable natural or processed mineral soils obtained from offsite sources, or graded crushed stone, gravel, or crushed concrete aggregate. The material shall be as specified under the Unified Soil Classification System as GP, GW, SP, or SW in accordance with ASTM D2487, with less than 5% of fines. Pervious Fill shall have a minimum hydraulic conductivity of 1x10-3 cm/sec.

1. Demolished concrete from the site may be used as Pervious Fill. Demolished concrete used as pervious fill shall not contain fragments larger than 6 inches, and shall not have more than 5 percent by dry weight passing No. 200 sieve, and shall have all reinforcement steel removed to the maximum extent practical.

2. Pervious Fill from off-site sources shall not contain any particles larger than 6 inches in largest dimension, and not more than 10 percent by dry weight retained on the 3 inch sieve, nor more than 5 percent by dry weight passing the number 200 sieve. Material shall be free of all organic material, trash, snow, ice, frozen soil, or other objectionable materials. Imported crushed concrete may be used as Pervious Fill.

F. Topsoil

1. The topsoil shall consist of natural topsoil, free from subsoil, of uniform quality free of hard clods, stiff clay, hardpan, sods, partially disintegrated stone, lime, cement, ashes, slag, concrete, tar residues, tarred paper, boards, chips, sticks and all other undesirable material.

2. The topsoil shall be classified as a sandy loam by the USDA textural classification system determined by sieve and pipette or hydrometer analysis. The topsoil shall contain 75 percent sand by weight. The fine to medium sand fraction (0.10 to 0.50 mm in diameter) shall comprise at least 90 percent of the sand fraction. No more than 3 percent of the soil shall be gravel (>1 mm <1in in diameter).


PROJECT NO. 1410-72284 02230 - 5

3. The topsoil shall contain between 2 to 8 percent organic matter by weight determined by loss on ignition of moisture free samples dried at 100 degrees Celsius. To adjust organic matter content, the soil may be amended, by the addition of composted leaf mold or peat moss. Use of organic amendments is acceptable only if random soil sampling indicates thorough incorporation.

4. The topsoil reaction (pH) shall be between 5.5 and 6.5.

5. Topsoil shall be graded within the following limits:

Sieve Size Percent Finer by Weight

1in 100

1/4in 97

No. 100 40 to 60

6. Do not destroy topsoil structure through excessive and unnecessary handling and compaction. Inappropriate handling leading to the compaction or deterioration of soil structure will result in rejection of topsoil for use.

PART 3 EXECUTION

3.01 PREPARATION

A. Test Pits

1. Perform exploratory excavation work (test pits) for the purpose of verifying the location of underground utilities and structures and to check for unknown utilities and structures, prior to commencing excavation work.

2. Test pits shall be backfilled as soon as the desired information has been obtained. Backfilled surfaces shall be stabilized in accordance with approved erosion and sedimentation control plans.

B. Dewatering and Drainage Systems

1. Temporary dewatering and drainage systems, including erosion and sedimentation control systems specified in Section 02270, shall be in place and operational prior to beginning excavation work.

3.02 GENERAL REQUIREMENTS

A. Fill and backfill materials shall not be placed on frozen surfaces, or surfaces covered by snow or ice. Fill and backfill material shall be free of snow, ice and frozen earth.

B. Fill and backfill materials should be placed in layers not to exceed 8 inches. Compaction in confined areas (including areas within a 45 degree angle extending upward and outward from the base of a wall) and in areas where the use of large equipment is impractical, shall be accomplished by hand operated vibratory equipment or mechanical tampers. Lift thickness shall not exceed 4-in (measured before compaction) when hand operated equipment is used.


PROJECT NO. 1410-72284 02230 - 6

3.03 FILLING AND BACKFILLING PROCEDURES

A. Bentonite shall be place “in-the-dry” per details shown on the Contract Drawings. Bentonite shall be compacted by self weight during material placement. The contractor shall submit a material placement plan detailing: the equipment to be used, handling procedures, and method of protection for in-place bentonite for approval of the Engineer.

1. No bentonite shall be placed during inclement weather including all forms of precipitation, and placed bentonite shall be protect from precipitation and surface water sources until it is covered with Clay Cap materials as shown on the contract drawings.

A. Common fill and temporary fill materials shall be placed in lifts to suit the specified compaction requirements to the lines and grades required, making allowances for settlement and placement of cover materials (i.e. topsoil, sod, etc). Soft spots or uncompacted areas shall be corrected. Common fill shall be compacted to 92 percent of the maximum dry density within 5 percentage points of the optimum moisture content as determined by ASTM Standard D1557.

1. Common and temporary fill material placement and compaction shall be completed “in-the-dry” by articulating sheeps-foot rollers, fully loaded ten-wheel trucks, tractor dozers weighing at least 30,000 lbs and operated at full speed, heavy rollers, or compaction equipment with sufficient weight to meet the compaction requirements and approved by the engineer.

a. One compaction test per lift shall be completed by a method approved by, and under the supervision of the Engineer.

2. Common and temporary fill in the dry shall not be placed and compacted when the materials are too wet to properly compact (i.e. the in-place moisture content of the soil at that time is no more than three percentage points above the optimum moisture content of that soil as determined by the laboratory test of the moisture-density relation appropriate to the specified level of compaction).

B. Clay materials shall be placed in locations designated on the Contract Drawings, and compacted “in-the-dry” by an articulating sheeps-foot roller, or other equipment approved by the engineer of sufficient weight to meet the compaction requirements below. Clay materials shall be placed in even lifts having a maximum thickness of 8 inches measured before compaction. All maximum soil dry density shall be determined by the proctor compaction test using a modified effort as determined by ASTM Standard D1557.

1. Type I Clay shall be compacted to at least 98 percent of the maximum dry density within 2 percentage points of the optimum moisture content.

a. One five-pound soil sample per five hundred cubic yards of delivered Type I Clay shall be collected and submitted to the soils laboratory to confirm the soil grain size analyses and USCS Classification tested in accordance with ASTM D422 including hydrometer testing. Additional testing may be required at the discretion of the Engineer to confirm consistency of soil properties as delivered.

b. Minimum of one 3-inch minimum diameter Shelby tube sample per 1000 cubic yards of in-place compacted Type I Clay material shall be collected as directed by the Engineer, and tested by an outside independent soil analysis company for the


PROJECT NO. 1410-72284 02230 - 7

coefficient of hydraulic conductivity tested as determined by ASTM D5084. Certified results shall be sent to the Engineer for approval and acceptance.

c. One compaction test per lift shall be completed by a method approved by, and under the supervision of the Engineer.

2. Type II clay shall be compacted to at least 95 percent of the maximum dry density within 2 percentage points of the optimum moisture content.

a. One five-pound soil sample per one-thousand cubic yards of delivered Type II Clay shall be collected and submitted to the soils laboratory to confirm the soil grain size analyses and USCS Classification tested in accordance with ASTM D422 including hydrometer testing. Additional testing may be required at the discretion of the Engineer to confirm consistent soil properties.

b. Minimum of one 3-inch minimum diameter Shelby tube sample per 1000 cubic yards of in-place compacted Clay material shall be collected as directed by the Engineer, and tested by an outside independent soil analysis company for the coefficient of hydraulic conductivity tested as determined by ASTM D5084. Certified results shall be sent to the Engineer for approval and acceptance.

c. One compaction test per lift shall be completed by a method approved by, and under the supervision of the Engineer.

C. Pervious fill shall be placed “in-the-wet.,” The caisson shall be dewatered to maintain a minimum of 1 foot of free board to prevent overtopping of the caisson during placement of pervious fill. Backfill placed “in-the-wet” shall be placed in uniform lifts, distributed evenly over the area of the caisson to practical extents.

1. Pervious fill placed “in-the-wet” inside the caisson shall be placed by clam shell bucket, or alternative method approved by the engineer.

2. Pervious fill shall be compacted by the self weight of the material during placement.

3. The Contractor shall submit a material placement plan detailing the equipment to be used and sequence of pervious fill placement for approval of the Engineer.

3.04 DISPOSAL OF UNSUITABLE, WASTE AND/OR SURPLUS EXCAVATED MATERIAL

A. Unsuitable, waste and surplus excavated material shall be removed and disposed of off-site. Materials may be temporarily stockpiled in an area within the limits of construction that does not disrupt construction activities, create any nuisances or safety hazards, or otherwise restrict access to the work site.

3.05 GRADING

A. Grading shall be performed to the lines and grades shown on the Drawings. All objectionable material encountered within the limits indicated shall be removed and disposed of. Subgrades shall be completely and continuously drained and dewatered throughout the grading process. Install temporary drains, drainage ditches, etc, to intercept or divert surface water which may affect the execution or condition of grading work.


PROJECT NO. 1410-72284 02230 - 8

B. If at the time of grading it is not possible to place any material in its proper section of the Work, it shall be stockpiled in approved areas for later use. No extra payment will be made for the stockpiling or double handling of backfill or fill material.

C. Stones or rock fragments larger than 4-in in their greatest dimensions will not be permitted within the top 6-in of the finished grade of fills.

D. In cut areas, all loose or protruding rocks in slopes shall be removed to line or finished grade of the slope. All cut and fill slopes shall be uniformly dressed to the slope, cross-section and alignment shown on the Drawings unless otherwise directed by the Engineer.

END OF SECTION


PROJECT NO. 1410-72284 02270 - 1

SECTION 02270

EROSION AND SEDIMENTATION CONTROL

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and perform all installation, maintenance, removal and area cleanup related to erosion and sedimentation control work as shown on the Drawings and as specified herein. The work shall include, but not necessarily be limited to; installation of temporary access ways and staging areas, silt fences, stone filter boxes, stone filter berms, sediment removal and disposal, device maintenance, including existing devises, temporary mulching, excelsior matting installation and final cleanup.

1.02 RELATED WORK

A. Caisson Backfill and Cap Installation is included in Section 02230.

B. Topsoil and Seeding is included in Section 02930.

1.03 SUBMITTALS

A. Submit, in accordance with Section 01300, within 10 days after award of Contract, technical product literature for all commercial products to be used for erosion and sedimentation control.

B. Submit a Soil Erosion Permit from the City of Dearborn Department of Development. Permit requires a fee of $40.00.


A. Be responsible for the timely installation and maintenance of all sedimentation control devices necessary to prevent the movement of sediment from the construction site to offsite areas or into the channel system via surface runoff or underground drainage systems. Measures in addition to those shown on the Drawings necessary to prevent the movement of sediment off site shall be installed, maintained, removed, and cleaned up at the expense of the Contractor. No additional charges to the City will be considered.

B. Sedimentation and erosion control measures shall conform to the requirements of Michigan Public Act 451 Part 91 (Soil Erosion and Sedimentation Control) and Part 31 (covering the National Pollutant Discharge Elimination System)

C. Soil erosion and sedimentation control measures shall employ the Best Management Practices (BMPs) as defined by standard EPA 832-R-92-005.


PROJECT NO. 1410-72284 02270 - 2

1.05 REQUIREMENTS OF REGULATORY AGENCIES

A. Secure all permits and post all bonds or deposits required to comply with regulatory agencies including, but not limited to, the City of Dearborn Department of Public Works, Wayne County Department of Environment, and the State of Michigan Department of Natural Resources and Environment.

PART 2 PRODUCTS

2.01 MATERIALS

A. All materials shall be in compliance with MDOT Standards and Specifications for Construction.

PART 3 EXECUTION

3.01 INSTALLATION

A. Maintain, upgrade, and replace as necessary existing erosion and sedimentation controls, including but not limited to, sediment fences, stone berms, filter boxes, dust control systems, and truck wash stations.

B. Sediment Fence Installation

1. Sediment fences shall maintained and replaced as necessary at the existing locations on-site, and additional sediment fences shall be installed as necessary to prevent off site movement of sediment produced by construction activities as directed by the Engineer.

2. Dig trench approximately 6-in wide and 6-in deep along proposed fence lines.

3. Drive stakes, 6.5-ft on center (maximum) at back edge of trenches. Stakes shall be driven 1-ft (minimum) into ground.

4. Hang filter fabric on posts carrying to bottom of trench with about 4-in (of fabric laid across bottom of trench. Stretch fabric fairly taut along fence length and maintain secure both ways.

5. Backfill trench with excavated material and tamp.

6. Install pre-fabricated silt fence according to manufacturer's instructions.

C. Construct filter boxes as detailed in accordance with MDOT Standards and Specifications for Construction. Fill with crushed stone and place over all drop inlets and manholes to storm drain system as each inlet is completed. This should be done prior to setting casting, if there is a delay between installation of inlet structures or drain manholes and setting of castings. An alternate method is to ring each inlet with a sediment fence.

D. Staging areas and access ways shall be surfaced with a minimum depth of 4-in of crushed stone.

3.02 DUST CONTROL

A. Keep dust down at all times, including during non-working periods. Sprinkle or treat with dust suppressants, the soil at the site, haul roads, and other areas disturbed by operations. Dry power brooming is not permitted.


PROJECT NO. 1410-72284 02270 - 3

3.03 DIVERSION CONDUIT PROTECTION

A. Protect existing diversion conduit from sediment intrusion by weighted filter fabric fully covering each joint or other method approved by the Engineer

3.04 MAINTENANCE AND INSPECTIONS

A. Inspections

1. Prior to commencing construction activities inspect all in-place sediment and erosion control devices, and repair, upgrade, or replace as necessary to comply regulatory permits.

2. Make a visual inspection of all erosion and sedimentation control devices once per week and promptly after every rainstorm. If such inspection reveals that additional measures are needed to prevent movement of sediment to offsite areas, promptly install additional devices as needed. Sediment controls in need of maintenance shall be repaired promptly.

B. Device Maintenance

1. Sediment Fences

a. Remove accumulated sediment once it builds up to 1/2 of the height of the fabric.

b. Replace damaged fabric, or patch with a 2-ft minimum overlap.

c. Make other repairs as necessary to ensure that the fence is filtering all runoff directed to the fence.

2. Filter Boxes

a. Replace crushed stone when it becomes saturated with silt.

3. Stone Filter Berm

a. Muck out trapped silt from dewatering operations when it has built up to within 6-in of the top of the berm.

b. Replace crushed stone filter when saturated with silt.

4. Add crushed stone to access ways and staging area as necessary to maintain a firm surface free of ruts and mudholes.

3.05 TEMPORARY MULCHING

A. Apply temporary mulch to areas where rough grading has been completed but final grading is not anticipated to begin within 30 days of the completion of rough grading.

B. Straw mulch shall be applied at rate of 100 lbs/1000 sq ft and tackified with latex acrylic copolymer at a rate and diluted in a ratio per manufacturer’s instructions.

3.06 EROSION CONTROL BLANKETS

A. Erosion control blankets shall be installed in all seeded drainage swales and ditches as shown on the Drawings and as directed by the Engineer in accordance with manufacturer's instructions. The area to be covered shall be properly prepared, fertilized and seeded with


PROJECT NO. 1410-72284 02270 - 4

permanent vegetation before the blanket is applied. When the blanket is unrolled, the netting shall be on top and the fibers in contact with the soil over the entire area. The blankets shall be applied in the direction of water flow and stapled. Blankets shall be placed a minimum of three rows (of 4-ft) wide (total approx. 12-ft width) within the drainage swale/ditch and stapled together in accordance with manufacturer's instructions. Side overlaps shall be 4-in minimum. The staples shall be made of wire, 0.091-in in diameter or greater, "U" shaped with legs 10-in in length and a 1-1/2-in crown. Commercial biodegradable stakes may also be used with prior approval by the Engineer. The staples shall be driven vertically into the ground, spaced approximately two linear feet apart, on each side, and one row in the center alternately spaced between each size. Upper and lower ends of the matting shall be buried to a depth of 4-in in a trench. Erosion stops shall be created every 25-ft by making a fold in the fabric and carrying the fold into a silt trench across the full width of the blanket. The bottom of the fold shall be 4-in below the ground surface. Staple on both sides of fold. Where the matting must be cut or more than one roll length is required in the swale, turn down upper end of downstream roll into a slit trench to a depth of 4-in. Overlap lower end of upstream roll 4-in past edge of downstream roll and staple.

1. To ensure full contact with soil surface, roll matting with a roller weighing 100 lbs/ft of width perpendicular to flow direction after seeding, placing matting and stapling. Thoroughly inspect channel after completion. Correct any areas where matting does not present a smooth surface in full contact with the soil below.

3.07 REMOVAL AND FINAL CLEANUP

A. Once the site has been fully stabilized against erosion, remove sediment control devices and all accumulated silt. Dispose of silt and waste materials in proper manner. Regrade all areas disturbed during this process and stabilize against erosion with surfacing materials as indicated on the Drawings.

END OF SECTION


PROJECT NO: 1410-72284 02930 - 1

SECTION 02930

TOPSOIL AND SEEDING

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and place topsoil, finish grade, apply fertilizer, apply seed and mulch or straw and maintain all seeded areas as shown on the Drawings and as specified herein, including all areas disturbed.

1.02 RELATED WORK

A. Caisson Backfill, Cap and Cover Installation are included in Section 02230.

1.03 SUBMITTALS

A. Samples of all materials shall be submitted in accordance with Section 01300 for inspection and acceptance upon Engineer's request.

1.04 REFERENCE STANDARDS

A. Michigan Department of Transportation (MDOT) Standard Specifications for Construction.

B. Association of Official Seed Analysts, Rules for Testing Seeds.

1.05 REGULATORY REQUIREMENTS

A. Comply with the applicable requirements of the Michigan Department of Agriculture, Pesticide and Plant Pest Management Division, Michigan Seed Law, Act 329, PA of 1965, as amended.

B. Chemical fertilizer shall be supplied in suitable bags with the net weight of the contents and guaranteed analysis shown on the container. Bulk shipments shall be accompanied by an analysis and net weight certification of the shipment. Custom mixed fertilizers shall be accompanied by a certification of the weight of each commercial fertilizer used in the mixture and a guaranteed analysis of each shipment expressed in percentages of total Nitrogen (N), total available Phosphoric Acid (Pps) and total available Potash (~O) included.

PART 2 PRODUCTS

2.01 MATERIALS

A. Topsoil requirements are specified in Section 02230.

B. Fertilizer shall be a complete commercial fertilizer, 10-10-10 grade for grass areas, or alternative mix approved by the Engineer. It shall be delivered to the site in the original unopened containers each showing the manufacturer's guaranteed analysis. Store fertilizer so that when used it shall be dry and free flowing.

C. Grass seed shall be from the same or previous year's crop; each variety of seed shall have a percentage of germination not less than 90, a percentage of purity not less than 85 and shall have not more than 1 percent weed content. The mixture shall consist of seed proportioned in


PROJECT NO: 1410-72284 02930 - 2

accordance with MDOT Standard Specifications for Construction Section 917, Turf and Landscaping Materials, or alternative approved by the Engineer.

D. The seed shall be furnished and delivered premixed in the proportions referenced above. A manufacturer's certificate of compliance to the specified mixes shall be submitted by the manufacturer for each seed type. These certificates shall include the guaranteed percentages of purity, weed content and germination of the seed and also the net weight and date of shipment. No seed may be sown until the certificates have been submitted.

E. Mulch shall be in accordance with MDOT Standard Specifications for Construction Section 917.15.

PART 3 EXECUTION

3.01 APPLICATION

A. Unless otherwise shown on the Drawings, topsoil shall be placed to a minimum depth of 6-in on all vegetative areas and 4-in in areas indicated as temporary fill.

B. For all areas to be seeded fertilizer, seed, and mulch shall be placed in accordance with MDOT Standard Specifications for Construction Section 816.03.

C. The application of fertilizer may be performed hydraulically in one operation with hydroseeding and mulching.

3.02 INSTALLATION

A. Installation of topsoil and seed shall be as directed by the Engineer after satisfactory completion of inspection and testing of the Clay Cap and Surcharge for leakage and defects.

B. The subgrade of all areas to be loamed and seeded shall be raked and all rubbish, sticks, roots and stones larger than 2-in shall be removed. Subgrade surfaces shall be raked or otherwise loosened immediately prior to being covered with topsoil. Subgrade shall be inspected and approved by the Engineer before topsoil is placed.

C. Topsoil shall be placed over approved areas to a depth sufficiently greater than required so that after natural settlement and light rolling, the complete work will conform to the lines, grades and elevations indicated. No topsoil shall be spread in water or while frozen or muddy.

D. Seeding, mulching and conditioning shall only be performed during those periods within the seasons which are normal for such work as determined by the weather and locally accepted practice, as approved by the Engineer. Hydroseed only on a calm day.

E. Schedules for seeding and fertilizing must be submitted to the Engineer for approval prior to the work.

F. If fertilizer is to be spread mechanically rather than in one operation with the hydroseeding, then:

1. After the topsoil is placed and before it is raked to true lines and rolled, limestone shall be spread evenly over topsoil surface and thoroughly incorporated with topsoil by heavy raking to at least 1/2 the depth of topsoil.


PROJECT NO: 1410-72284 02930 - 3

2. Fertilizer shall be uniformly spread and immediately mixed with the upper 2-in of topsoil.

G. Seeding shall be done within 10 days following soil preparation.

H. When protection of newly graded areas is necessary at a time that is outside of the normal seeding season, protect those areas by whatever means necessary (such as straw applied with a tar tack) or by other measures as approved by the Engineer.

3.03 MAINTENANCE AND ACCEPTANCE

A. Keep all seeded areas watered and in good condition, reseeding if and when necessary until a good, healthy, uniform growth is established over the entire area seeded and shall maintain these areas in an approved condition including a minimum of two mowings of the lawn areas until acceptance.

B. On slopes, provide against washouts by an approved method. Any washout that occurs shall be regraded and reseeded at the Contractor's expense until a good sod is established.

C. Reseed and mulch areas larger than two (2) square feet (1800 cm2) not having a uniform stand of grass acceptable to the Engineer.

D. The inspection by the Engineer will determine whether maintenance shall continue in any area.

E. After all necessary corrective work and clean-up has been completed the Engineer will certify in writing the provisional acceptance of the lawn areas. Maintenance of lawns or parts of lawns may cease on receipt of provisional acceptance.

3.04 GUARANTEE PERIOD AND FINAL ACCEPTANCE

A. All seeded areas shall be guaranteed for not less than 1 full year from the time of provisional acceptance.

B. At the end of the guarantee period, inspection will be made by the Engineer upon written request submitted at least 10 days before the anticipated date. Lawn areas not demonstrating satisfactory stands as outlined above, as determined by the Engineer, shall be renovated, reseeded and maintained meeting all requirements as specified herein.

C. After all necessary corrective work has been completed, the Engineer shall certify in writing the final acceptance of the lawns.

END OF SECTION


PROJECT NO. 1410-72284 03600 - 1

SECTION 03600

GROUT

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and inject cement-bentonite grout complete as shown on the Drawings and as specified herein.

1.02 RELATED WORK

A. Demolition and Modifications are included in Section 02050.

B. Caisson Backfill, Cap and Cover Installation is included in Section 02230.

1.03 SUBMITTALS

A. Submit shop drawings and descriptions of equipment, grout mixes, and proposed grouting sequences. Submittal shall include the following:

1. A detailed description of the grouting operation including:

a. A detailed description and drawing indicating locations of mixing and injection equipment, injection points, flowlines, waste grout recovery, and grout pressure limiting equipment.

b. A detailed description of the grout system and grout equipment including manufacturer’s literature for grout pumps, mixers, delivery systems, and monitoring systems.

c. Procedures for monitoring grout placement and controlling pressures.

d. The sequence of construction and grout time schedule.

2. Grout Material and Properties

a. Grout mix design including fluidizers, accelerators, and other additives.

b. Grout material properties including density, viscosity, bleeding, shrinkage, expansion, and set time.

c. Grout Manufacturer’s Instructions: Mixing and installation instructions, including data on water volume, workability, setting times, and temperatures.

B. Reports and Records: Maintain and submit daily logs of grouting operations, including locations, pressures, volumes, grout mix pumped and changes in the operation or grout mix and any unusual conditions and notes.

C. Certification and Test Results: Documentation and results from the testing laboratory and from the field:

1. Materials meet specified shrinkage requirements.


PROJECT NO. 1410-72284 03600 - 2

2. Results of all tests specified herein.

D. Qualifications

1. Submit documentation that grout manufacturers have at least ten years experience in the production and use of the grouts proposed.

1.04 STANDARD REFERENCES

A. American Society for Testing and Materials (ASTM)

1. ASTM C150 - Standard Specification for Portland Cement.

2. ASTM C827 - Standard Test Method for Change in Height at Early Ages of Cylindrical Specimens of Cementitious Mixtures.

3. ASTM C1107 - Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Non-shrink).

B. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.


A. Qualifications: Contractor’s Grouting Supervisor shall be experienced in the design and placement of grout. The experience shall be comparable to the type of work and size required for this project.

B. Testing: Provide at the site, all necessary quality control testing apparatus and all other devices required to conduct material acceptance tests, proportioning tests, and grout quality tests for proper quality control of the work.

1.06 DESIGN CRITERIA

A. The grout shall be sized to resist the upward water pressure at the base of the plug for a factor of safety equal to at least 1.1.

1.07 DELIVERY, STORAGE AND HANDLING

A. Deliver materials to the jobsite in original, unopened packages, clearly labeled with the manufacturer's name, product identification, batch numbers and printed instructions.

B. Store materials in full compliance with the manufacturer's recommendations. Limit total storage time from date of manufacture to date of installation to six months or the manufacturer's recommended storage time, whichever is less.

PART 2 PRODUCT

2.01 MATERIALS

A. Cement shall be standard Portland cement conforming to ASTM C150 for Type II or Type V.

B. Bentonite will be classified as an admixture. Pulverized premium grade, natural sodium cation bentonite, conforming to the requirements of API Recommended Practice 13A, with a minimum yield of 90 barrels per ton when tested in accordance with API Recommended


PROJECT NO. 1410-72284 03600 - 3

Practice 13A. Protect bentonite from moisture and contamination both in transit and storage at the site. Material that has become caked due to moisture adsorption shall not be used.

C. Water shall be potable, clean, and free from objectionable quantities of silty organic matter, alkali, chlorides, and other impurities.

D. Admixtures: Other admixtures may be used subject to the approval of the Engineer to improve the pumpability, control set time, to hold sand in suspension, and to prevent segregation and bleeding.

2.02 EQUIPMENT

A. Drilling Equipment: The drilling equipment shall be capable of advancing through the caisson concrete wall and any obstructions encountered to the grouting depth shown in the Drawings.

B. Equipment for mixing and injecting grout shall be of an approved type and of adequate size to satisfactorily mix and agitate the grout and force it into the grout holes, in a continuous flow at the desired pressure. Pumps shall be capable of continuously developing a uniform pressure of 50 psi at the grout hole connection.

C. Arrangement of grouting equipment shall provide for continuous circulation of grout in the system and shall permit accurate pressure control. Equipment and lines shall be kept clean by continuous circulation of grout and by periodic flushing with water.

D. The mixer shall be provided with a meter for measuring the amount of mixing water used. The meter shall be calibrated to read in cubic feet to the nearest one-tenth of a cubic foot.

E. Two pressure gauges shall be provided in working order at all times, one at the grout pump and one at the manifold hookup at the collar of each hole being grouted. The accuracy of the gauges shall be periodically checked and accurately calibrated with high pressure gauge. A spare gauge shall be available on site at all times.

F. Equipment and grouting procedures shall be such that grouting pressures at the grout hole connection in excess of the maximum specified shall not occur. Suitable stop valves shall be provided at the collar for use in maintaining pressure as required until the grout has set.

G. The grouting equipment shall be provided with a meter to determine the volume of grout injected. The meter shall be calibrated in cubic feet to the nearest one-tenth of a cubic foot.

H. The grouting equipment shall be maintained in satisfactory operation condition throughout the course of the work to ensure continuous and efficient performance during grouting operations.

PART 3 EXECUTION

3.01 GENERAL REQUIREMENTS

A. Mix, apply and cure products in strict compliance with the manufacturer's recommendations and these specifications.

B. Provide staffing and equipment available for rapid and continuous mixing and placing. Keep all necessary tools and materials ready and close at hand.


PROJECT NO. 1410-72284 03600 - 4

C. Take special precautions for hot weather or cold weather grouting as recommended by the manufacturer when ambient temperatures and/or the temperature of the materials in contact with the grout are outside of the 40 degrees F and 90 degrees F range.

D. All grouting operations are to be performed in the presence of the Engineer, who shall be notified 24 hours in advance of the startup of a grouting operation.

3.02 INSTALLATION

A. The Contractor will use a track or truck-mounted rig to drill from the top of the demolished caisson wall. The rig will core down through the caisson wall until reaching the grouting depth shown on the Drawings.

B. Grout will be injected through the drilled access point with a pressure at least twice of the ground water pressure or as instructed by the Engineer to allow sufficient penetration of the grout into the caisson wall cracks and seal them.

C. Once grouting is started, injection shall be continuous and without interruption, except as directed by the Engineer.

D. Maintain records showing time, batch number, injection point pressures, grout quantities injected, and observations for each grout injection point. Maintain mix records showing time, and quantities for each batch.

E. If necessary, as directed by the Engineer, additional drilling penetrating the grouted zone and re-grouting shall be performed to seal the cracks, at no additional cost to the City.

END OF SECTION

END OF SPECIFICATIONS

MAYOR

AUGUST 2011

CITY OF DEARBORN, MICHIGANCOMBINED SEWER OVERFLOW CONTROL PROJECT

CONTRACT NO. 3CAISSON ABANDONMENT

DIRECTOR OF PUBLIC WORKS

CITY ENGINEER

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C-3 CAISSON

Southfield Freeway

Rotunda Drive

CDM Michigan Inc.One Woodward Avenue, Suite 1500Detroit, MI 48226Tel: (313) 963-1313

NCITY OF DEARBORN, MICHIGAN

COMBINED SEWER OVERFLOW CONTROL PROJECT



consulting • engineering • construction • operations

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