Bridges and culverts with openings measuring more than 20 feet (6m) parallel to the centerline of the roadway are inspected on a two year cycle in accordance with National Bridge Inspection Standards. The structural and hydraulic design of culverts is substantially different from bridges as are the construction methods, durability considerations, and inspection procedures. This manual provides guidelines for the inspection and evaluation of existing culverts. It is a stand alone supplement to the Bridge Inspector's Training Manual. The text provides procedures for conducting and documenting culvert inspections with specific guidelines for inspecting and evaluating the major hydraulic and structural components of culverts. Discussions on the hydraulic, structural, and personnel qualifications, equipment, and safety procedures required for conducting culvert inspections.
Determine the effectiveness and long-term durability of the Contech A-2000 PVC pipe in an irrigation application. This type of pipe may prove to be a ...
Determine the effectiveness and long-term durability of the Contech A-2000 PVC pipe in an irrigation application. This type of pipe may prove to be a ...
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United States Department of Transportation
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