TABLE 11-7b Urban Bridge Condition by Functional Class: 2002
Monday, September 10, 2012
TABLE 11-7b Urban Bridge Condition by Functional Class: 2002
Number
| Structurally deficient | Functionally obsolete | All urban bridges | |
|---|---|---|---|
| Interstates | 1,715 | 5,617 | 27,924 |
| Other freeways or expressways | 1,025 | 3,431 | 16,843 |
| Other principal arterials | 2,273 | 5,428 | 24,300 |
| Minor arterials | 2,605 | 6,402 | 24,510 |
| Collectors | 1,739 | 3,783 | 15,166 |
| Local roads | 3,147 | 5,014 | 26,594 |
| Total | 12,504 | 29,675 | 135,337 |
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 the bridge 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, June 23, 2003.