1−85 The Contractor shall maintain and make available all project cost records to the Department for audit to the extent necessary to determine the validity and amount of each item claimed. This includes all books and other evidence bearing on the Contractor's costs and expenses under this Contract. The Contractor shall make these records and documents available to the Department, at the Contractor's office, at all reasonable times, without any direct charge. If approved by the Department, phot ographs, microphotographs, or other authentic reproductions may be maintained instead of original records and documents.
f.Contractual Responsibilities . Termination of a Contract or portion thereof shall not relieve the Contractor of contractual responsibilities for the work completed, nor shall it relieve the Surety of its obligation for and concerning any just claim arising out of the work performed.
109.01 MEASUREMENT OF QUANTITIES . Work completed under the Contract will be
measured by the Engineer according to United States standard measure, or by the metric system when the Contract so provides. A station when used as a definition or term of measurement will denote 100 linear feet. The method of measurement and computations to be used to determine quantities of materials furnished and work performed under the Contract will be those methods generally recognized as conforming to good engineering practice. Unless otherwise specified, longitudinal measurements for area computations will be made horizontally, and no deductions will be made fo r individual fixtures in the roadway having an area of 9 square feet or less. Unless otherwise specified, transverse measurements for area computations will be the neat dimensions shown on the Plans. Structures will be measured according to neat lines shown on the Plans or as altered to fit field conditions. Items which are measured by the linear foot, such as pipe culverts, curb, guardrail, underdrains, etc., will be measured parallel to the base or foundation upon which such structures are placed, unless otherwise shown on the Plans. In computing volumes of excavation the average end area method, or other acceptable methods, will be used. The thickness of plates and galvanized sheet used in the manufacture of corrugated metal pile, metal plate pipe culverts and arches, and metal cribbing will be specified and measured in decimal fractions of inches. 1−86 The term "gauge" shall mean the standard gauges as established by AASHTO, ASTM,
U.S.A.S.I. or Manufacturer's standards, in the order of precedence listed. The term "ton" will mean the short ton consisting of 2,000 pounds avoirdupois. Materials which are measured or proportioned by weight shall be weighed on accurate, approved scales by competent, qualified personnel at locations designated by the Engineer. If material is shipped by rail, the car weight may be accepted provided that payment is made only for the actual weight of such material. However, car weights will not be acceptable for material that is passed through mixing plants. Trucks used to haul material being paid for by weight shall be weighed empty daily at such times as the Engineer directs. Each truck shall bear a plainly legible identification mark. Materials to be measured by volume in the hauling vehicle shall be hauled in approved vehicles and measured in such vehicles at the point of delivery. Vehicles for this purpose may be of any size or type acceptable to the Engineer , provided that the body is of such shape that the actual volume may be readily and accurately determined. Vehicles shall be loaded to at least their water level capacity and all loads shall be leveled when the vehicles arrive at the point of delivery. However, any "heap" above the water level line may be computed for quantity if authorized by the Engineer. When requested by the Contractor and approved in writing by the Engineer, 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 measurement to volume measurement will be determined by the Engineer and shall be acceptable to the Contractor before such method of measurement of quantities is employed. Bituminous materials will be measured as indicated in the Proposal. Volumes will be measured at 60 OF or will be corrected to the volume at 60OF using ASTM D1250 for asphalts or ASTM D633 for tars. Net certified scale weights, or weights converted from certified volumes in the case of rail shipments, will be used as a basis of measurement. Such weights, however, shall be subject to correction whenever bituminous material has been lost from the car or the distributor, wasted, or otherwise not incorporated in the work. When bituminous materials are shipped by truck or transport, net certified weights or volume subject to correction for loss or foaming, may be used for computing quantities. Cement will be measured by the pound. Timber will be measured by thousand foot -board measure (M.F.B.M.) actually incorporated in the structure. Measurement will be based on nominal widths and thicknesses and the extreme length of each piece. The term "lump sum" when used in the Bid Schedule as an item of payment will mean complete payment for the work so described in the Contract. 1−87 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. Rental of equipment will be measured by time in hours of actual working time and necessary travel time within the limits of t he project. If special equipment has been ordered by the Engineer in connection with force account work, travel time and transportation to the project will be measured. If equipment has been ordered held on the job on a standby basis by the Engineer, half-time rates for the equipment will be paid. When standard manufactured items are specified such as fence, wire, plates, rolled shapes, pipe conduit, etc., and these items are identified by gauge, unit weight, section dimensions, etc., such identification will be considered to be nominal weights or dimensions. Unless more stringently controlled by toleranc es in cited specifications, manufacturing tolerances established by the respective industries will be accepted. Scales for the weighing of highway and bridge construction materials that are required to be proportioned or measured and paid for by weight, shall be furnished, erected, and maintained by the Contractor, or be certified permanently installed commercial scales. Scales shall be accurate within ½ of 1 percent of the correct weight throughout the range of use. The Contractor shall have the scales checked under the observation of the Inspector before beginning work and at such other times as requested. The intervals shall be uniform in spacing throughout the graduated or marked length of the beam or dial and shall not exceed 1/10 of 1 percent of the nominal rated capacity of the scale; but not less than 1 pound. The use of spring balances will not be permitted. Beams, dials, platforms, and other scale equipment shall be arranged so that the operator and inspector can safely and conveniently view them. Scale installations shall have available ten standard 50 pound weights for testing the weighing equipment or suitable weights and devices for other approved equipment. Scales must be tested for accuracy and serviced before use at a new site. Platform scales shall be installed and maintained with the platform level and rigid bulkheads at each end. Scales over weighing (indicating more than true weight) will not be permitted to operate and materials received subsequent to the last correct weighing accuracy test will be reduced by the percentage of error in excess of ½ of 1 percent. In the event inspection reveals the scales have been under weighing, they shall be adjusted and no additional payment to the Contract or will be allowed for materials previously weighed and recorded. Costs in connection with furnishing, installing, certifying, testing, and maintaining scales; for furnishing check weights and scale house, and fo r all other items specified in this Subsection for weighing of highway and bridge construction materials for proportioning or payment shall be included in the unit contract prices for the various pay items of the project. 1−88 When the estimated quantities for a specific portion of the work are designated as pay quantities in the Contract, they shall be the final quantities for which payment will be made, unless the dimensions of the work shown on the Plans are revised by the Engineer. If revised dimensions result in an increase or decrease in the quantities of work, the final quantities for payment will be revised in the amount represented by the authorized changes.
109.02 SCOPE OF PAYMENT . The Contractor shall receive and accept compensation
provided for in the Contract as full payment for furnishing all materials and for performing all work under the Contract in a complete and acceptable manner, and for all risk, loss, damage, or expense of whatever character arising out of the nature or prosecution of the work, subject to the provisions of Subsections 104.03; Differing Site Conditions and 107.16; No Waiver of Legal Rights . If the "Basis of Payment" clause in the specifications relating to any unit price in the Bid Schedule requires that the said unit price cover and be considered compensation for certain work or material essential to the item, this same work or material will not also be measured or paid for under any other pay item which may appear elsewhere in the Contract.
109.03 COMPENSATION FOR ALTERED QUANTITIES . When the accepted quantities of
work vary from the quantities in the Bid Schedule, the Contractor shall accept payment at the original contract unit prices for the accepted quantities of work performed. No allowance will be made for any reason except as provided for in Subsections 104.03; 104.05; and 104.07; Differing Site Conditions, Extra Work, and Significant Changes in the Character of the Work , respectively.
109.04 Differing Site Conditions, Changes, Extra Work and Force Account
WORK .
a.Methods of Payment . Differing site conditions, changes, extra work, and significant changes in the character of the work, all performed in accordance with SECTION 104; SCOPE OF WORK , will be paid for in accordance with the following methods as appropriate:
1.Contract unit prices.
2.Unit prices agreed upon in the order authorizing the work.
3.An agreed upon lump sum amount.
4.If directed by the Department, on a Force Account Basis to be compensated in the following manner:
a.Labor . For all labor and foremen in direct charge of the specific operations, the Contractor shall receive the rate of wage actually paid as shown by its certified payroll, which rate shall be at least the prevailing rate of wage (or scale), for each and every hour that said labor and foremen are actually engaged in the work.
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 99–102 of 826.