Figure 3: Bridges by Year Built

As of December 2006

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Figure 3: Bridges by Year Built. If you are a user with disability and cannot view this image, use the table version. If you need further assistance, call 800-853-1351.

NOTE: Bridges that are both structurally deficient and fuctionally obsolete are classified as structurally deficient. Numbers include the 50 U.S. States, the District of Columbia, and Puerto Rico

SOURCE: U.S. Department of Transportation, Federal Highway Administration, National Bridge Inventory, Bridge by Year Built, 2006, available at as of Aug. 8, 2007