National Bridge Inventory
From Wikipedia, the free encyclopedia
The National Bridge Inventory (NBI) is a database, compiled by the Federal Highway Administration, with information on all bridges and tunnels in the United States that have roads passing above or below. This information includes the design of the bridge and the dimensions of the usable portion.
The data is often used to analyze bridges and what condition they are in.
[edit] ID numbers
Each bridge is given a number by the highway department of the respective state or the agency that maintains the bridge. The method of assigning numbers differs from one state to the next, but provides a unique number for each bridge in the state.
[edit] External links
- National Bridge Inventory (doesn't include the database)
- National Bridge Inventory search
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