2011. United States. Bureau of Transportation Statistics and United States. Federal Highway Administration. The NBI is a collection of information (database) describing the more than 600,000 of the Nation's bridges located on public roads, including Inter... Federal Highway Administration (FHWA).
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2013. United States. Bureau of Transportation Statistics and United States. Federal Highway Administration. FAF domestic region level datasets and products provide information for states, state portions of large metropolitan areas, and remainders of state...