ITEM 615 ROADS AND PAVEMENTS FOR MAINTAINING TRAFFIC
615.01 Description. This work consists of providing, maintaining, and subsequently removing
roads and appurtenances, and pavements for maintaining traffic.
615.02 Fences. If necessary, replace permanent fencing with temporary fencing while occupying
any temporary Right-of-Way, provide, erect, and maintain comparable temporary fencing during the period of construction. Take ownership of the existing fence. The Contractor may use this material in the erection of the temporary fence. Before occupancy of the temporary Right-of-Way is terminated and before removal of the temporary fence, the Engineer will notify the property owner to reinstall permanent fencing according to the Right-of-Way settlement.
615.03 Earthwork. Excavate and construct embankment necessary for providing and
maintaining temporary roads and any associated drainage facilities, as well as subsequent removal of temporary roads and restoration of the areas to their original condition, according to Item 203 . Construct adequate side ditches in cut sections, and provide drainage pipe and culverts where necessary. Ensure the side slopes are not steeper than 1.5:1, unless otherwise shown on the plans.
615.04 Guardrail. Where the height of the embankment is 5 feet (1.5 m) or more, measured at
the outside edge of the paved surface, and the side slope is steeper than 4:1, provide guardrail at a distance of at least 1.5 feet (0.5 m) from the edge of the required width of the surface course. Conform to one of the types of guardrail specified in Item 606 , except that the Department will allow the Contractor to re-use material in good condition.
615.05 Pavement. Ensure that the pavement surface is constructed to the width shown in the
plans, of the materials, and in the manner specified. Prepare the subgrade in accordance with 204.03 and 204.04 Provide subgrade conforming to Item 204.03. Soft subgrade will be determined and replaced according to Item 204.04. Provide aggregate shoulders, when specified, conforming to Item 411 for a minimum thickness of 6 inches. Where Class A or Class B pavement is shown on the plans, provide either rigid pavement or flexible pavement conforming to the following minimum requirements: MINIMUM COURSE THICKNESS REQUIRED Pavement Type Course Make-Up Class A Class B Rigid 452 9 in (230 mm) 7 in (180 mm) Flexible [6] 441 Type 1 [1] 1-1/4 in (32 mm) 1-1/4 in (32 mm) 441 Type 2 [2] [5] 1-3/4 in (45 mm) 1-1/2 in (38 mm) 302 [3] [5] [7] 5-1/2 in (140 mm) 3-1/2 in (90 mm) 304 [4] [5] 6 in (100 mm) 6 in (100 mm) [1] Meet surface course requirements. [2] Meet intermediate course requirements. [3] The Contractor may use 301 or 441 Type 2 intermediate course. [4] The Contractor may use 2-1/2 inches (65 mm) 301, 302, or 441 Type 2 intermediate course in lieu of 6 inches (150 mm) of 304. [5] The Engineer may waive maximum placement lift thicknesses if quality control testing conforming to Supplement 1055 is performed and a final density between 93 and 96.5 percent is achieved. [6] The Contractor may use 442 in lieu of 441. [7] The use of anti -segregation equipment according to 302 is not required for pavement constructed under this Item. IF the pavement will be part of the final pavement build up, anti -segregation equipment is required according to 302. For the indicated pavement type and courses, conform to the requirements of the specified items except as modified below. For rigid pavements, conform to Item 452 . Tiebars or hook bolts for longitudinal joints are not required. Use dowels only at transverse expansion and construction joints. Conform to the quality requirements set forth in 499.02 for the materials, except the requirements of 703.13. Use Class QC-1 or QC 1P concrete. For any part of the 452 pavement that is to be incorporated into the permanent pavement, the above exclusions do not apply and conformance to Items 452 and 499 is required. For a 441 course, if the Contractor spreads and finishes the materials by acceptable hand methods, the Department will waive the requirements for smoothness. Use a PG 64 -22 asphalt binder for temporary asphalt pavement. If any part of the temporary pavement will be incorporated into the project permanently, then use the contract-specified PG asphalt binder grade for the pavement course. For a 304 course, if the Contractor spreads the aggregate by approved hand methods, the Department will not require side forms. If the 304 course is to be removed, the Contractor may use reclaimed asphalt concrete or Portland cement concrete pavement. Determine the thickness of the courses by field measurement.
615.06 Sidewalk. If temporary walks are required, provide the type of walk shown in the plans
in accordance with Item 608.
615.07 Maintenance. Maintain all portions of the temporary facilities in good condition with
respect to both safety and smoothness for travel as long as it is needed for maintenance of traffic. If the Engineer determines that the Contractor is not properly maintaining the temporary facilities, the Department may put them into proper condition according to 105.15.
615.08 Removal. If the temporary facilities are no longer needed, remove them, except such
portions of the embankment as are shown on the plans to be a part of the new roadway embankment, and leave the area in a neat condition. Take ownership of all material removed, unless otherwise shown on the plans. Use all suitable material in the work or legally use, recycle, or dispose in accordance with 105.16 and 105.17.
615.09 Method of Measurement . The Department will measure the quantity of Pavement by
the number of square yards (square meters) of pavement surface (including paved and aggregate shoulders) placed, maintained, and removed as directed, measured complete in place. The Department will measure areas of soft subgrade, undercut and replaced, according to 204.08.
615.10 Basis of Payment. Payment for Roads for Maintaining Traffic includes the installation,
maintenance, and removal of all fencing, earthwork, guardrail, sidewalk, and all other items as necessary to provide a complete, functional, and safe installation for public use. The Department will pay for areas requiring undercut and replacement conforming to 204.04 according to 204.09. The Department will pay for accepted quantities at the contract prices as follows: Item Unit Description 615 Square Yard Pavement for Maintaining Traffic, Class A (Square Meter) 615 Square Yard Pavement for Maintaining Traffic, Class B (Square Meter) 615 Lump Sum Roads for Maintaining Traffic
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