Excel | CSV | Graphic Version
| Year | Structurally deficient | Functionally obsolete |
|---|---|---|
| 1990 | 137,865 | 100,355 |
| 1991 | 134,534 | 97,593 |
| 1992 | 118,698 | 80,393 |
| 1993 | 111,980 | 80,000 |
| 1994 | 107,683 | 79,832 |
| 1995 | 104,317 | 80,950 |
| 1996 | 101,518 | 81,208 |
| 1997 | 98,475 | 77,410 |
| 1998 | 93,076 | 79,506 |
| 1999 | 88,150 | 81,900 |
| 2000 | 83,576 | 81,510 |
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 Sept. 27, 2001.