Based upon inspection and load capacity analysis, any bridge deemed unsafe gets closed. Bridges that cannot safely carry heavy vehicles, such as some tractor trailers, are posted with weight limits.
All bridges are analyzed for their capacity to carry vehicular loads. They are required to evaluate, assign a condition score and associated quantities, and document the condition of structural elements on a span basis, in addition to general components common to all bridges. In New York State, bridge inspectors assess all bridge components.
ADOBE BRIDGE NOT RESPONDING PROFESSIONAL
The state requires all highway bridges to be inspected at least every two years and is one of the few states in the nation that requires bridge inspection teams to be headed by licensed professional engineers who have undergone specific training. NYSDOT's bridge inspection program meets or exceeds federal requirements and consistently receives high marks in annual Federal Highway Administration management reviews. Tolling authorities and commissions are responsible for their own inspections and are required to submit their inspection data to NYSDOT. NYSDOT inspects its own highway bridges, as well as highway bridges owned by localities and commissions that do not collect tolls, ultimately inspecting about 94 percent of the highway bridges in the state. NYSDOT is responsible for making sure all the highway bridges in the state are inspected following state and federal mandates. New York State is home to approximately 17,450 highway bridges, about 44 percent of them owned by the State Department of Transportation (NYSDOT), roughly 50 percent owned by municipalities, and the rest owned by state and local authorities (such as the State Thruway Authority), commissions (such as the Capital District State Park Commission), and private railroads.
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