TABLE 85 Structurally Deficient and Functionally Obsolete Bridges: All Roadways 1991-2001

TABLE 85 Structurally Deficient and Functionally Obsolete Bridges: All Roadways 1991-2001

(Number)

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  1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001
Structurally deficient 134,534 118,698 111,980 107,683 104,317 101,518 98,475 93,072 88,150 83,576 83,595
Functionally obsolete 97,593 80,393 80,000 79,832 80,950 81,208 77,410 79,500 81,900 81,510 81,439

NOTES: 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. Structurally deficient refers to bridges needing significant maintenance attention, rehabilitation, or replacement.

SOURCE: U.S. Department of Transportation, Federal Highway Administration, Office of Engineering, Bridge Division, National Bridge Inventory database, available at http://www.fhwa.dot.gov/bridge/britab.htm, as of December 2002.