680.03 Construction Requirements.
b.Payment will be made und er Item No .: 674-A Construction Safety Fence - per linear foot {meter} GEOMETRIC CONTROLS
680.01 Description.
When this item is included in the proposal, it shall consist of the Contractor furnishing, placing, an d maintaining construction stakes, lines, and grades necessary for establishing the accurate location of all features of construction.
680.02 Materials.
All materials needed in the performance of the work of Geometric Controls shall be furnished by the C ontractor.
680.03 Construction Requirements.
a.Determination of Lines and Grades . The Engineer will furnish centerline control points (P.C.s, P.O.C.s, P.T.s, P.O.T.s, etc.) at intervals determined necessary by the Engineer for the Contractor to establish alignment on all roadways. Where ramps, cross roads, service roads, etc. are geometrically tied to the mainline roadway, the Engineer will only establish control points along the mainline of the roadways. The Engineer will stake breaks of rights -of-way an d mark the clearing limits. Bench marks will be furnished at intervals along the project for vertical control. Sufficient design roadway cross section information (elevations, slope ratios, etc.) will be provided to enable the Contractor to establish grade stakes and slope stakes. Alignment data and flowline data for drainage structures (including box culverts) will be furnished by the Engineer. For each bridge site, except box culverts, the Engineer will furnish a minimum of two horizontal control points a nd one bench mark for vertical control.
b.Contractor's Responsibility .
1.Contractor's Responsibility for Establishing Geometric Controls . The Contractor shall be responsible for all layout and geometric control work necessary for construction of all ite ms of work. The Contractor shall use the plans, controls and other data furnished by the Engineer in establishing the required location of all features of the work. The Contractor shall be responsible for the utilization and preservation of all furnished controls. The Contractor shall replace State furnished control stakes or marks that are disturbed by the Contractor during construction.
2.Contractor's Responsibility to Check Furnished Controls . The Contractor shall check all furnished controls as a fir st order of work to be assured that they are accurate. The Contractor's use of all furnished points and marks for construction of the project shall be acceptance of the responsibility for the accuracy of these controls. By acceptance of responsibllity for the accuracy of the controls the Contractor waives all claims for extra compensation for corrective work if the controls are later found to be incorrect. All discrepancies shall be reported immediately to the Engineer in writing.
3.Setting Geometric Controls for Roadway Construction . The Contractor shall mark or monument the locations of the finished subgrade along the centerline, at the edges of lanes and at breakpoints. Markings or monuments shall be provided at intervals of 100 feet {30 m } on tangent alignments and at intervals of 50 feet {15 m} on curved alignments. The type of marking or monument shall be suitable for the purpose of checking the vertical and horizontal position of the location against the required position shown in the plans. The type of marking or monument shall be approved by the engineer prior to being set. The Contractor shall also mark or monument locations on each layer of soil or aggregate base at transverse breakpoints on these layers at intervals of 50 feet { 15 m}.
4.Setting Geometric Controls for Bridge Construction . For all bridge work the Contractor shall establish and maintain all horizontal and vertical control points, and furnish all lines and grades necessary for the bridge construction from the initia l layout
680.04 Method of Measurement.
to the final acceptance of the bridges. The Contractor shall accurately set all forms, headers, rails, and screeds to provide the dimensions, elevations, and grades shown on the plans.
680.04 Method of Measurement.
Measurement of the item of Geometric Controls will be made on a lump sum basis. When more than one project is included in a contract, each project will be assigned a fractional part of the lump sum as shown on the plans.
680.05 Basis of Payment.
a.Unit Price Coverage . The item of Geometric Controls, measured as noted above, will be paid for at the contract lump sum price bid. Said lump sum shall be full compensation for furnishing all materials (hubs, stakes, templates, straightedges), equipment, tools, labor, and incidentals n ecessary to complete this item of work. Partial payments for the item of Geometric Controls will be made on monthly estimates. The amount paid each month will be a percentage of the lump sum contract amount. This percentage shall be the same as the percent age of work performed during the estimate period. When more than one project is included in a contract, the amount of a partial payment will be the sum of separate calculations made for each project.
b.Payment will be made under Item No .: 680-A Geomet ric Controls - per lump sum SECTION 698 CONSTRUCTION FUEL COST
698.01 Description.
This Section shall cover the cost of construction fuel for the equipment necessary for the performance of the required work except for the production of Hot Mix Asphalt (HMA).
698.02 Bidding and Cost Adjustment.
The bidder shall enter an amount from zero dollars up to the maximum dollar amount shown in the pay item description for fuel on the proposal form. The Contractor signifies that this amount represents a reasonable estimate of the fuel costs isolated from all other costs of completing the required work except for the production of HMA. If a proposal contains an amount greater than the maxi mum amount shown in the pay item description, the amount bid for Construction Fuel will be assigned a value that is the maximum amount. A cost adjustment will be made to the amount of compensation due for construction fuel on each estimate. This cost adju stment will be based on the cost of the fuel at the time of bid and the cost of fuel at the time of the estimate.
698.03 Method of Cost Adjustment.
The Department will determine and publish a monthly "Fuel Index" utilizing t he average area terminal price reports for regular unleaded gasoline and No. 2 fuel of the "Platts Oilgram Price Report" published during the week in which the first day of the month occurs. The Base Fuel Index ( Ιb) for the project will be the monthly fuel index published for the month in which the bids were opened for the project. Before the expiration of contract time partial payments will be made on monthly estimates using the following formula: P = ( Ιm / Ιb) X P c , where P = Numerical portion of the lump sum bid amount, a number usually less than one. (Round to nearest thousandth.) May be expressed as a percentage of the lump sum by multiplying by 100 %. Ιm = Fuel Index for Current Monthly Estimate Ιb = Base Fuel Index Pc = Perce nt of project completed during current estimate period, i.e., P c = Percentage of project complete to date minus percent project complete at the time of previous estimate. Percentage
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 584–584 of 934.