SECTION 680 GEOMETRIC CONTROLS
674.02 Materials.
Construction Safety Fence shall consist of a plastic, open-mesh fencing material, which shall be bright orange in color, and mounted on posts by means of adjustable belts or loops or other means that will securely hold the fencing in an upright position. Posts may be of any type material that will adequately serve the intended purpose for the duration of the project. Fence material shall weigh at least 12 pounds per 100 foot long roll (four foot wide roll) {5.4 kg per 30 meter long roll} ({1.21 meter wide roll}). The Department has established a list (List V-7) of acceptable Construction Safety Fences. The Contractor may furnish any of the safety fences shown on this list. The list is given in the Department's manual, "MATERIAL, SOURCES AND DEVICES WITH SPECIAL ACCEPTANCE REQUIREMENTS."
674.03 Construction Requirements.
Construction Safety Fence shall be installed as shown in the plans and as directed by the Engineer. The fence shall be continuous, four feet in height above the ground surface, and shall be spliced together only at support posts with a minimum 6 inch {150 mm} overlap. The maximum spacing between posts shall be 10 feet {3 meters}. The Contractor shall maintain the integrity of the fence as long as the engineer deems necessary and while construction or associated activities are ongoing in the vicinity of the area enclosed or delineated by the fence. The Contractor shall routinely inspect the fence and correct any deficiencies immediately. The fence shall remain in place until the Engineer directs that it be removed. The fence materials shall remain the property of the Contractor and may be reused at other locations, provided they are in satisfactory condition for reuse as determined by the Engineer. Posts and the hardware for attaching the construction safety fence to the posts shall be considered a necessary requirement of the construction safety fence installation and no direct payment will be made for such.
674.04 Method of Measurement.
Construction Safety Fence will be measured in linear feet {meters} to the nearest 0.1 of a foot {0.1 meter} along the line of the completed fence.
674.05 Basis of Payment.
a.General. The unit price for Construction Safety Fence shall be payment in full for furnishing all materials and for all labor, tools, equipment, and incidentals necessary for performing all work involved in constructing, maintaining, removing, and disposing of the construction safety fence.
b.Payment will be made under Item No.: 674-A Construction Safety Fence - per linear foot {meter} SECTION 680 GEOMETRIC CONTROLS
680.01 Description.
When this item is included in the proposal, it shall consist of the Contractor furnishing, placing, and 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 Contractor.
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 SECTION 680 GEOMETRIC CONTROLS will only establish control points along the mainline of the roadways. The Engineer will stake breaks of rights-of-way and 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 and 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 items 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 first 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 responsibility 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 initial layout 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. Partial payments for the item of Geometric Controls will be made on monthly estimates with the amount to be paid each month a percentage of the lump sum bid price. Payments will be made at the time and in the amounts shown in the following schedules: SECTION 680 GEOMETRIC CONTROLS SCHEDULE OF PARTIAL PAYMENTS FOR GEOMETRIC CONTROLS WHEN THE CONTRACT BID PRICE FOR GEOMETRIC CONTROLS IS LESS THAN, OR EQUAL TO 5 % OF THE ORIGINAL CONTRACT AMOUNT (Partial Payments are a % of the Contract Amount for Geometric Controls) TIME OF PARTIAL PAYMENT AMOUNT OF PARTIAL PAYMENT ACCUMULATED PAYMENT First Estimate 20% of the Bid Price for Geometric Controls 20% of the Bid Price for Geometric Controls After the First Estimate and When the Percent Complete Exceeds 5 % of the Adjusted Contract Amount 50% of the Bid Price for Geometric Controls 70% of the Bid Price for Geometric Controls After the First Estimate and When the Percent Complete Exceeds 50 % of the Adjusted Contract Amount 30% of the Bid Price for Geometric Controls 100% of the Bid Price for Geometric Controls Note: If 50 % or more of the Adjusted contract amount is completed by the first estimate, a payment of 75 % of the Bid Price for Geometric Controls will be made on the first estimate. The remainder of the Bid Price for Geometric Controls will be paid on the following estimate. SCHEDULE OF PARTIAL PAYMENTS FOR GEOMETRIC CONTROLS WHEN THE CONTRACT BID PRICE FOR GEOMETRIC CONTROLS IS GREATER THAN 5 % OF THE ORIGINAL CONTRACT AMOUNT (Partial Payments are a % of the Contract Amount for Geometric Controls) TIME OF PARTIAL PAYMENT AMOUNT OF PARTIAL PAYMENT ACCUMULATED PAYMENT First Estimate 10% of the Bid Price for Geometric Controls 10% of Total Bid Price for Geometric Controls After the First Estimate and When the Percent Complete Exceeds 5 % of the Adjusted Contract Amount 25% of the Bid Price for Geometric Controls 35% of Total Bid Price for Geometric Controls After the First Estimate and When the Percent Complete Exceeds 50 % of the Adjusted Contract Amount 50% of the Bid Price for Geometric Controls 85% of the Bid Price for Geometric Controls At Acceptance for Maintenance per Item 105.15(c)3. 15% of the Bid Price for Geometric Controls 100% of the Bid Price for Geometric Controls When more than one project is included in one contract, the amount of payment to be made will be based on the "Percent Complete" as defined in Article 108.04 and amount of the entire contract, not the amount of each individual project. Once the amount of partial payment is determined, based on the entire contract, this amount will then be prepared for payment on each individual project based on the fraction of the total contract of which the project is a part.
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 necessary to complete this item of work. Partial payments for the item of Geometric Controls will be made in accordance with Article
680.04 The final quantity for this item will be 1.0 unless the project is terminated prior to completing
the work in accordance with Article 108.14. 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 Geometric Controls - per lump sum
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Source: 2026 Standard Specifications for Highway Construction, 2026 Edition. Pages 588–590 of 826. View official source ↗