TABLE 2-7b Urban Bridge Condition by Functional Class: 2003

TABLE 2-7b Urban Bridge Condition by Functional Class: 2003

Number

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  Structurally deficient Functionally obsolete All urban bridges
Interstates 1,698 5,549 27,593
Other freeways or expressways 1,009 3,428 16,859
Other principal arterials 2,218 5,390 23,960
Minor arterials 2,558 6,464 24,603
Collectors 1,714 4,009 15,265
Local roads 3,112 5,129 27,048
Total 12,309 29,969 135,328

NOTES: Structurally deficient refers to bridges needing significant maintenance attention, rehabilitation, or replacement. Functionally obsolete refers to bridges that do not have the lane widths, shoulder widths, or vertical clearances adequate to serve traffic demand or bridges that may not be able to handle occasional roadway flooding.

SOURCE: U.S. Department of Transportation, Federal Highway Administration, Office of Engineering, Bridge Division, National Bridge Inventory Database, CD-ROM, January 2005.