The world's largest and most comprehensive bibliographic resource on transportation information. TRIS is produced and maintained by the Transportation Research Board at the National Academies with sponsorship by State Departments of Transportation, the various administrations at the U.S. Department of Transportation, and other sponsors of TRB’s core technical activities.
State of Minnesota
+ Bridge Plans
Copies of engineering plans for bridge projects. For historical reference use, primarily by engineering firms and local government entities.
+ Bridges and Structures
Bridge CADD standards, special provisions, bridge management and bridge inspection
Full Text Book: Digital Bridges
Bridges of the 19th Century. Lehigh University.
of Every Bridge in the U.S. that has been rated as "structurally deficient" or "functionally obsolete," and carries at least 10,000 vehicles a day.
1. Choose a state on the map.
2. Scroll down below the map to "Click here to see major state bridges on list."
Background about the data and database here. Thanks to Bill Dedman for the news tip.
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