109— Measurement and Payment

100-91 Section 109 — Measurement and Payment

109.1 Measurement of Quantities 1 All work completed under the Contract will be measured by the RCE according to the United States Standard Measures. 2 A station, when used as a definition or term of measurement, is 100 linear feet. 3 The appropriate method of measurement and computation set forth in the SCDOT Construction Manual will be used for the determination of quantities of materials furnished and of work performed under the Contract. 4 Unless otherwise specified, longitudinal measurements for area computations will be made along the actual surface of the roadway. No deductions will be made for individual fixtures with an area of 9 sq ft or less. Unless otherwise specified, transverse measurements for area computations will be the neat dimensions shown on the Plans or authorized by the RCE. 5 Structures are measured according to neat lines shown on the Plans or as altered to fit field conditions. 6 All items that are measured by the linear foot, such as curb and gutter, fence, pipe culverts, guardrail, etc., will be measured parallel to the base of foundation upon which the item is placed or attached unless otherwise specified. 7 In computing volumes of excavation, the average end area method or other acceptable methods will be used. Excavation performed beyond the neat lines or slope stakes will not be measured for payment except when the material is used for borrow. 8 The thickness of plates and galvanized sheet used in the manufacture of corrugated metal pipe, metal plate pipe culverts and arches, and metal cribbing are specified and will be measured in decimal fractions of inches. 9 All materials that are measured and proportioned by weight will be weighed on accurate, calibrated scales by competent, qualified personnel at locations designated or approved by the RCE. Ensure that all platform scales are of sufficient size to permit the entire vehicle or combination of vehicles to rest on the scale platform while being weighed. Furnish the use of scales at no cost to the Department. Have scales tested by an approved firm or state agency as often as deemed necessary to ensure their acc uracy. If material is shipped by rail, the proven railroad weights may be accepted with appropriate deductions to cover losses in shipment due to damaged cars, negligence of the Contractor in handling material, or other circumstances as may be determined by the RCE. If the RCE determines that no other methods of determining weights for a material are feasible, railroad car weights or tank truck weights of material passed through mixing plants will be acceptable.