SUBSECTION 901: CEMENT CONCRETE DESCRIPTION
901.20: General
Cement Concrete with or without reinforcement as required for bridges, culverts, walls, steps, drop inlets and other work shall be constructed to the designs and dimensions indicated on the plans or as directed and to close conformity with the lines and grades established by the Engineer. Where necessary, at the direction of the Engineer, the dimensions or design may be adjusted to fit foundation, slope or construction conditions as encountered. MATERIALS
901.40: Materials
Materials shall meet the requirements specified in the following Subsections of Division III, Materials: Cement Concrete .......................................................................................................................... M4.02.00 High Performance Cement Concrete ................................................................................... M4.06.1 Reinforcing Steel .......................................................................................................................... M8.01.0 Epoxy Coated Reinforcing Bars ............................................................................................. M8.01.7 Galvanized Reinforcing Bars ................................................................................................... M8.01.8 Mechanical Reinforcing Bar Splicer ..................................................................................... M8.01.9 Stay -in-Place Bridge Deck Form ............................................................................................ M8.21.0 Preformed Expansion Joint Filler .......................................................................................... M9.14.0 Preformed Bituminous Fiber Joint Filler .......................................................................... . M3.05.3 Preformed Compression Joint Seals (Bridges) ................................................................ M9.14.1 Polyurethane Joint Sealer (Flow Type) .............................................................................. M9.14.3 Polyurethane Joint Sealer (Non -Sag Type) ....................................................................... M9.14.4 Bonded Closed Cell Joint System ........................................................................................... M9.14.6 Plastic Water Stops ..................................................................................................................... M9.07.0 Curing Materials Impervious Liquid Membrane ........................................................................................ M9.06.5 Waterproof Paper ................................................................................................................ M9.06.0 Burlap ....................................................................................................................................... M9.06.3 White Polyethylene for Curing ....................................................................................... M9.06.1, Part B Polyethylene Coated Burlap ................................................................................................. ... M9.06.4 Concrete Penetrant/Sealer ...................................................................................................... M9.15.0 I.85 202 4 Edition SECTION 9.00 : MEASUREMENT AND PAYMENT Subsection 9.01 : Measurement of Quantities The quantities of the various items of work performed shall be determined for purposes of payment by the Engineer and by the Contractor for the purposes of certification(s) of work performed that are generally required by law and specifically by the provision hereof. Upon the completion of the work and before final payment is made the Engineer will make final measure-ment to determine the quantities of the various items of work performed, as the basis for final settlement. All measurements shall be made according to th e United States standard units of measurement. The method of measurement and computations to be used in determination of quantities of material furnished and of work performed under the Contracts shall be selected by the Engineer. Longitudinal measurements for area computations will be made horizontally, and no deductions will be made for individual fixtures having an area of 9 ft² or less. T ransverse measurements for area computations will be the neat dimensions shown on the plans or ordered in writing by the Engineer. Structures will be measured according to neat lines shown on the plans or as altered to fit field conditions. All items which are measured by the foot, such as pipe, culverts, guardrail, underdrains, etc., will be measured parallel to the base or foundation upon which such structures are placed . In computing volumes of excavation the average end area method or other methods acceptable to the Engineer will be used. When the term “gage” refers to the measurement of wire, it will mean the wire gage specified in the AASHTO M 32M/M 32 . All materials which are specified for measurement by weight shall be weighed on standard scales fur-nished by and at the expense of the Contractor. Such scales shall be sealed at the expense of the Contractor as often as is necessary to insure their accura cy. A sworn weigher to be compensated by the Contractor shall weigh all materials required to be weighed as above provided. The weighing of such materials may be witnessed by the Engineer. If materials are shipped by rail or trucks, the car weights or quar ry weights may be accepted, but scales shall be used as above, if so directed. Weight slips shall be provided for each shipment of material weighed. Each weight slip shall be signed by the sworn weigher. The weight slips shall be counter-signed on delivery by the Engineer and no weight slip not so countersigned shall be included for payment under the Contract. When requested by the Contractor and approved by the Engineer in writing, material specified to be measured by the cubic yard may be weighed and such weights will be converted to cubic yards for payment purposes. Factors for conversion from weight measurem ent to volume measurement will be determined by the Engineer and shall be agreed to by the Contractor before such method of measurement of pay quantity is used. The term “lump sum” when used as a unit of payment will mean complete payment for the work described in the Contract. I.86 202 4 Edition When a complete structure or structural unit (in effect, “lump sum” work) is specified as the unit of measurement, the unit will be construed to include all necessary fittings and accessories. When standard manufactured items are specified such as fence, wire, plates, rolled shapes, pipe conduit, etc., and these items are identified by gage, unit weight, section dimensions, etc., such identification will be considered to be nominal weight or dim ensions. Unless more stringently controlled by tolerances in cited specifications, manufacturing tolerances established by the industries involved will be accepted. Subsection 9.02: Scope of Payments The Party of the First Part will pay and the Contractor shall receive and accept the compensation as herein provided, in full payment for furnishing all materials, labor, tools and equipment and for performing all work contemplated and embraced under the Contract, and for providing all required submittals, reports, Certificates of Compliance (COCs) and any other paperwork or supporting documentation required by the plans and specifications, also for all loss or damage ar ising out of the nature of the work, or from the action of the elements (except as specified in Subsection 7.18), or from any unforeseen difficulties or obstructions which may arise or be encountered during the prosecution of the work (except as set forth in Subsection 4.04) until its final approval by the Party of the First Part, and for all risks of every description connected with the prosecution of the work, also for all expenses incurred by or in suspension or discontinuance of the said prosecution of the work as herein specified, and for any infringement of patent, trademark or copyright, and for completing the work in an acceptable manner according to the plans and specifications. The payment of any current estimate shall in no way constitute an acknowledgement of the acceptance of the work or in no way or degree prejudice or affect the obligation of the Contractor, at their own cost and expense, to repair, correct, renew or replace any defects and imperfections in the con-struction of, or in the strength of, or quality of materials used in or about the construction of the work under Contract and its appurtenances, as well as all damages due or attributable to such defects: which def ects, imper-fections or damages shall have been discovered on or before the final inspection and acceptance of the w ork. The Engineers hall be the sole judge of such defects, imperfections, or damages and the Contractor shall be liable to the Party of the First Part for failure to correct the same as provided herein, (Also see Subsection 7.20: No Waiver of Legal Rights ). Subsection 9.03: Payment for Extra Work
Where the Contract contains a unit price for work and the Engineer orders Extra Work for work of the same kind as other work contained in the Contract and is performed under similar physical conditions, the Contractor shall accept full and final payment at the Contract unit prices for the accepted quantities of Extra Work done. No allowance will be made for any increased expenses or any damages whatsoever . I.87 202 4 Edition B. Payment for work or materials for which no price is contained in the Contract. If the Engineer directs, the Contractor shall submit promptly in writing to the Engineer an offer to do the required work on a lump sum or unit price basis, as specified by the Engineer. The stated price, either lump sum or unit price, shall be divided so as to show that it is the sum of:
this total for overhead;
governmental agencies;
evidence of revised bonds according to Subsection 3.04). Unless an agreed lump sum and/or unit price is obtained from above and is so stated in the Extra Work Order the Contractor shall accept as full payment for work or materials for which no price agreement is contained in the Contract an amount equal to the f ollowing:
plus 10 percent of this total for overhead;
Earned Sick Time (EST) Law (940 CMR 33.00), and Paid Family and Medical Leave (PFML) Act (458 CMR 2.00); or, as an alternative to the above 13 percent, the Contractor may elect to use actual rates for FICA, FUTA, SUTA, EST and PFML provided the actual rates are supported with verifiable documentation and shall be subject to review by Audit Operations;
governmental agencies;
evidence of revised bonds according to Subsection 3.04). I.88 202 4 Edition Costs incurred for traffic police, railroad flagging and permits will be reimbursed without markup for overhead or profit. The Subcontractor is bound by the same criteria for the determination of an equitable adjustment as the Contractor. No separate payment will be made for general superintendence and the use of small tools, and manual equipment. The costs of general superintendence as well as use of small tools and manual equipment will be considered included in field and/or home office overhead. General superintendence is that next level above the working foreman. The Contractor shall, when requested by the Engineer, furnish itemized statements of the cost of the work ordered and give the Engineer access to all accounts, bills and vouchers relating thereto, and unless the Contractor shall furnish such itemized statements, access to all accounts, bills and vouchers, the Contractor shall not be entitled to payment for any items of extra work for which such information is sought by the Engineer.
In the event there arises the need for determination of costs of use of equipment as part of “actual costs” or “cost of performance” or “damages” under Subsection 4.04: Changed Conditions , Subsection 7.16: Claims of Contractor for Compensation , Subsection 8.05: Claim for Delay or Suspension of the Work , Subsection 9.02: Scope of Payments , and/or Subsection 9.03: Payment for Extra Work , or under MGL Chapter 30, such costs for use of equipment shall be established in accordance with the following:
owned equipment shall be determined as follows:
which the equipment was utilized on the Contract, and will not include estimated costs not recorded and identifiable in the Contractor’s formal accounting records. The Contra ctor shall afford Department auditors full access to all accounting, equipment usage, and other records necessary for development or confirmation of actual hourly cost rates for each piece of equipment, or groups of similar serial or series equipment. The Contractor’s refusal to give such full access shall invalidate any request or claim for payment of the equipment costs. When costs cannot be determined from the Contractor’s records, hourly equipment cost rates may be determined under (b) and (c) below.
I.89 202 4 Edition equipment owned by the Contractor may be determined by the use of rate schedules (with adjustments) supplied by EquipmentWatch Cost Recovery ™. The Contractor shall provide to the Department, in a format prescribed by the Department, sufficient descriptive ownership and operating records and documentation for each piece of equipment subject to the extra work so that the equipment rates may be determined and adjusted as follows:
will not be used). This rate shall be defined as ‘Adjusted FHWA Rate.’
The number of equipment hours to be paid for under the extra work or force account work shall be the number of hours that the equipment is actually used on a specific extra work or force account activity. The current version of EquipmentWatch will be used in establishing equipment rates. The version applicable to specific extra work or force account work will be the version in effect as of the first day that work is performed on that force account work and that rate shall apply throughout the period during which the force account work is being performed. In all cases, the Department reserves the right to utilize equipment rates based upon the contractor's actual equipment ownership costs, other equipment rate books and guides (i.e. Construction Equipment Ownership and Operating Expense Schedule, Region One published by the Army Corps of Engineer's) or hybrid rates determined to be reasonable by the Department.
Conditions , and Subsection 9.03: Payment for Extra Work , Part B, equipment cost rates determined under (a) and (b) above shall exclude any overhead costs such as equipment insurance, licenses, or taxes. The 10 percent additive shall compensate the Contractor for all overhead costs, including equipment overhead, general superintendence, small tools, manual equipment, field overhead, and central office overhead. Where the 10 percent overhead additive is not applicable, overhead items clearly related to equipment, (equipment insurance, licenses, taxes), shall be included i n the equipment rates; provided, however, that such costs shall be identified and eliminated from any other direct or indirect costs or damages payable by the I.90 202 4 Edition Department under the Contract. No element of profit shall be allowable in equipment cost rates for Contractor -owned equipment; it being understood that a 10 percent profit additive will be superimposed upon equipment costs when called for by the Contract.
Department adequate documentation, including the rental and usage records for the same or similar equipment items, demonstrating a reasonable likelihood that the equipment would have been rented out if not used on this Contract, and that the rental rates charged are consistent with rates charged to unaffiliated parties and going market rates. Rental costs under a sale and leaseback arrangement will be allowable only up to the amount the Contractor would be allowed if the Contractor retained title.
fringe costs as defined in Subsection 4.04: Changed Conditions and above.
field and office records maintained during performance of the work in a manner acceptable to the Department. Failure of the Contractor to so maintain time records which adequately segregate added equipment hours caused by extra work required by the Department, or caused by other Department actions cited in the Contractor’s claim for damages, from other equipment time worked on the Contract, when maintenance of such records would have been feasible, shall constitute a cardinal omission of the Contractor, invalidating any claim for equipment cost reimbursement. The above provisions constitute an advanced agreement made in general conformance with intent of Federal Acquisition Regulation 31.105, paragraph (d)(1), said intent being to maximize clarity of understanding and minimize possible disputes with respect to determination of reimbursable actual equipment costs under this Contract. I.91 202 4 Edition Subsection 9.04: Partial Payments The Engineer shall biweekly make an estimate of the total amount of the work completed from one estimate to the next. The Department may reduce payment on any or all individual pay items to account for the estimated value of documented incomplete or non- conforming work related to that pay item, including, in addition to the physical work, any submittals, Certificates of Compliance (COCs), reports or other paperwork required to support the work of the item. The Party of the First Part shall retain from said estimates an amount sufficient to cover claims which it may have against the Contractor and claims filed pursuant to Chapter 149, Section 29 and Chapter 30, Section 39A and F of the General Laws. The Party of the First Part shall pay biweekly to the Contractor while carrying on the work the balance not retained as hereinbefore provided. No such estimates or payment shall be required to be made when, in the Engineer’s judgment, the work is not proceeding in accordance with the provisions of the Contract, or when in thei r judgment the total value of the work completed since the last estimate amounts to less than $1,000.00. There will be no retainage held from partial payments. Upon presentation by the Contractor of certified copies of paid invoices, the Party of the First Part may include in the estimate, advance payments for acceptable reinforcing steel, structural steel, stone, piles, culvert pipe or other non -perishable mater ials purchased expressly for the work and delivered on the work or in approved storage places at the site, but which materials are not considered as erected or complete in place under the items of the Contract, and for which partial payment as specified ab ove would not be made until such materials and items were erected or complete in place. If it is impossible due to lack of area on the site or other valid reason, the Contractor may request in writing permission from the Engineer to store materials off the site and still have the materials paid as material on hand and the Engineer may approve payment. This request will state the reason for the request, location of proposed storage site, methods that will be employed to insure that materials is properly protected and the material will be used on the particular project, and any other information as may be deemed necessary in order to evaluate the request. No advance payment for material stored off the site w ill be made until written approval of the Engineer has been obtained. The amount to be included in the estimate will be determined by the Engineer up to a maximum of 100% of the value of the materials as shown by the certified copies of paid invoices. Paym ent will not be approved when the invoice value of such materials as determined by the Engineer, amounts to less than $1 ,000. Deductions at rates and in amounts which are equal to the payments will be made from estimates as the materials are incorporated in the work. Payment for the materials, as aforesaid, shall not in itself constitute acceptance and any materials which do not conform to the specifications for same shall be rejected in accordance with the stipulation of Subsection 6.04: Defective Materials . Payment for structural steel and aluminum, specifically purchased and received by fabricators for incorporation into a Department project may be requested by the Contractor and included in the current estimates in an amount not to exceed 50 percent of the contract price. Certified paid invoices and material certifications must be submitted by the contractor to the Department with the request for payment. The invoices must clearly identify the Department project for which the I.92 202 4 Edition material is intended along with the material type and quantity. When payment is made, the raw material becomes the property of the Commonwealth of Massachusetts. A document transferring ownership of the raw material to the Commonwealth shall be submitted to the Department immediately after payment is made. Such payment shall in no way release the Contractor from their responsibility for condition, protection and, in case of loss, replacement of such materials or from any liability resulting in any manner fr om the presence of such materials wherever they may be stored. Any material not conforming to the specifications shall be rejected in accordance with the stipulation of Subsection 6.04: Defective Materials . In instances where the raw material is not in the process of fabrication, the material shall be segregated from other material, designated as "Property of the Commonwealth of Massachusetts", and clearly marked to identify the project into which the material will be incorporated. All material shall be inspected at the fabricator's plant by a representative of the Department prior to the submittal of invoices to ensure that all material has been received and is properly stored and segregated. For any item for which the payment is made on a lump sum basis, (except lump sum Bridge Structures) and for which payment may be allowed if the Contractor requests partial payment on such an item, the Contractor shall submit for approval by the Engineer, a schedule of the quantities and unit prices for the major components of the item. Each component part shall be considered as including all its concomitance so that the total cost listed for the components is the contract cost for the item. The approval of the schedule by the Engineer shall not be considered as a guarantee to the Contractor that the quantities shown on the schedule are the approximate quantities actually included in the lump sum item. The schedule is only for the purpose of estimating partial payments, and it shall not affect the contract terms in any way. The Contractor will be required to certify, in writing, that the work for which they are being paid on the estimate in question has in fact been done. Subsection 9.05: Final Acceptance and Final Payment When in the opinion of the Chief Engineer the Contract has been satisfactorily completed and final acceptance has been voted by the Board of Commissioners, the Department Secretary shall inform the Contractor in writing of the date of such acceptance, upon which date the Contractor's responsibility shall cease except as provided in their bond and as provided in Subsection 7.20: No Waiver of Legal Rights . The Engineer shall, as soon as practicable after the physical completion of the Contract, make a final estimate of the amount of work done thereunder and the value of such work. Within 65 days from and after the date the work has been accepted by the Board , the Party of the First shall forward to the Contractor a copy of the final estimate or semifinal estimate as stipulated in Chapter 30, Section 39G of the General laws, as amended together with an agreement form for their acceptance. After such acceptance has been filed with the Supervisor of Fiscal Management of the Department payments of the entire sum will be made, so found to be due thereunder after deducting therefrom all previous payments and all amounts to be kept and all amounts to be retained under the provisions of the Contract. All prior partial estimates and payments shall be subject to correction in the final estimate and payment. If the Contractor has not filed valid (as determined by the Engineer) I.93 202 4 Edition written reasons for not accepting the final estimate within three months from the date the final estimate is forwarded to the Contractor, the final estimate will be considered acceptable to the Contractor and payment of the final estimate made. The acceptance by the Contractor of the final payment shall operate as and shall be a release to the Party of the First Part and every member, agent and employee thereof, from all claims by the Contractor for anything done or furnished for, or relating to the work or for any act or neglect of the Party of the First Part or of any person relating to or affecting the work, except the claim against the Party of the First Part for the remainder if any there be, of the amounts kept or retained as provided in Subsection 7.15: Claims Against Contractors for Payment of Labor, Materials and Other Purposes. Subsection 9.06: Prompt Payment to Subcontractors Contractors are required to promptly pay Subcontractors under this Contract within 10 business days from the receipt of each payment the Contractor receives from the Department. Failure to comply with this requirement may result in the withholding of payme nt to the Contractor until such time as all payments due under this provision have been received by the Subcontractor(s) and referral to the Prequalification Committee for action which may affect the Contractor’s prequalification status
COMMONWEALTH OF MASSACHUSETTS DEPARTMENT OF TRANSPORTATION STANDARD SPEC IFICATIONS for Highways and Bridges
202 4 Edition
i 202 4 Edition TABLE OF CONTENTS
Section 100: Earthwork, Grading, Demolition, Rodent Control and Borings ........................ II.1 Subsection 101: Clearing and Grubbing ........................................................................................................... II.1 Subsection 112: Demolition of Buildings, Structures and Bridges ....................................................... II.5 Subsection 119: Control of Rodents ................................................................................................................... II.9 Subsection 120: Excavation ................................................................................................................................. II.10 Subsection 140: Excavation for Structures ................................................................................................... II.16 Subsection 148: Dredging .................................................................................................................................... II.25 Subsection 150: Embankment ............................................................................................................................ II.28 Subsection 170: Grading ....................................................................................................................................... II.36 Subsection 190: Borings ....................................................................................................................................... II.38 Section 200: Drainage .............................................................................................................................. II.54 Subsection 201: Basins, Manholes and Inlets .............................................................................................. II.54 Subsection 220: Adjustment, Rebuilding and Remodeling of Drainage Structures ..................... II.57 Subsection 227: Drainage System Sediment ................................................................................................ II.60 Subsection 230: Culverts, Storm Drains, and SewEr Pipes .................................................................... II.62 Subsection 258: Stone for Pipe Ends ............................................................................................................... II.67 Subsection 259: Crushed Stone for Bleeders ............................................................................................... II.68 Subsection 260: Subdrains .................................................................................................................................. II.69 Subsection 270: Pipes Removed and Relaid or Stacked .......................................................................... II.71 Subsection 280: Waterways ................................................................................................................................ II.73 Section 300: Water Systems .................................................................................................................. II.75 Subsection 301: Water Systems ........................................................................................................................ II.75 Section 400: Sub -Base, Base Courses, Shoulders, Pavements and Berms ........................... II.82 Subsection 401: Gravel Sub -Base ...................................................................................................................... II.82 Subsection 402: Dense Graded Crushed Stone for Sub -Base ................................................................ II.83 Subsection 403: Reclaimed Pavement for Base Course and/or Sub -Base ....................................... II.84 Subsection 404: Reclaimed Pavement Borrow Material ......................................................................... II.89 Subsection 415: Pavement Milling ................................................................................................................... II.90 Sub