401 MAINTAINING EXISTING BRIDGE DECK DURING LIFE OF CONTRACT

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401.01 DESCRIPTION
Patch the existing bridge deck as required for maintenance of traffic.
401.02 MATERIALS
Rapid Hardening Cementitious Material for Concrete Pavement Repairs       902.14
Select patching material from the prequalified list of rapid hardening cementitious materials maintained by the Office of Materials Technology.
401.03 CONSTRUCTION
Periodically evaluate the existing deck with the Engineer to determine if any patching is necessary. Patch all holes over 1 in. deep having an area greater than 2 ft2. Locations and limits of all patch areas shall be as approved.
The Traffic Manager shall confer with the Engineer before patching begins to decide on a plan for diverting or detouring traffic. Meet all traffic safety and traffic control requirements.
Areas requiring patching shall be clean and free of loose material and conform to the manufacturer’s recommendations.
Protect waterways and roadways under the structure from falling debris. Do not dispose of removed material in waterways.
Place patching material to the top of the existing bridge deck surfaces.
Furnish and install new reinforcement when directed.
When opening to traffic prior to the patch achieving sufficient strength, cover the patch with steel plates as specified in 522.03.13. Build up areas around the plates with asphalt material.
401.04 MEASUREMENT AND PAYMENT
The payment will be full compensation for all material, labor, equipment, tools, and incidentals necessary to complete the work.
401.04.01 Patching for Maintaining Existing Bridge Deck will be measured and paid for at the Contract unit price per square foot. The payment will also be full compensation for the removal and disposal of material required to prepare the patch area, including chipping and hand cleaning, as well as furnishing and placing reinforcing steel, forming, providing protective structures, floodlighting, and furnishing, placing, and removing any steel plates. Patches performed day or night will be paid for at the Contract unit price.
401.04.02 All work, materials, sequence of operations, equipment, protection vehicle and channelization devices required to maintain traffic during each occurrence of patching including removal after patching is complete will be measured and paid for at the Contract unit price per each for the pertinent Maintenance of Traffic for Bridge Deck Patching Operation item. When more than one patch is made under one movement of traffic for patching, the item will be paid for only once, regardless of the number of patches made or the length of time traffic is rerouted. If traffic is maintained more than once for a particular patching operation, the work will be measured and paid for only once.