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A fracture critical bridge is a bridge or similar span that is vulnerable to collapse of one or more spans as a result of the failure in tension of a single element. While a fracture critical design is not considered unsafe, it is subject to special inspection requirements that focus on the tension elements of its structure.
The bridge inventory is developed for having a unified database for bridges, including the identification information; bridge types and specifications; operational conditions; and bridge data including geometric data, functional description, inspection data, etc. Bridge type and specifications classify the type of the bridge.
List of toll bridges § United States; Category:Lists of bridges documented by the Historic American Engineering Record; Category:Lists of bridges on the National Register of Historic Places; Category:Lists of river crossings in the United States; Other topics. Transport in the United States; Rail transportation in the United States
Around 46,100 of the 617,000 bridges across the United States, or 7.5% of all bridges, ... The Key Bridge was “fracture critical,” the National Transportation Safety Board said Wednesday.
The Key Bridge was “fracture critical” and did not have any redundancy, Homendy said. ... But the Key Bridge is one of 17,468 fracture-critical bridges in the US out of 615,000 total bridges ...
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This category includes articles on individual bridges found within the United States, subcategorized by the state in which it is located. Bridges that connect states are found in several subcategories.
Bridges fulfill a vital function that often goes overlooked until lives are lost or disrupted by a closure or collapse, like that of the Francis Scott Key Bridge in Baltimore early Tuesday.