Figure 4: Percentage of Highway Bridges with Deficiencies, 1992-2006
Figure 4: Percentage of Highway Bridges with Deficiencies, 1992-2006
Excel | CSV | Graphic Version
| Year | % Structurally deficient | % Functionally obsolete |
|---|---|---|
| 1992 | 20.7% | 14.0% |
| 1993 | 19.4% | 13.9% |
| 1994 | 18.7% | 13.9% |
| 1995 | 17.8% | 13.9% |
| 1996 | 17.4% | 14.0% |
| 1997 | 16.9% | 13.3% |
| 1998 | 16.0% | 13.6% |
| 1999 | 15.1% | 14.0% |
| 2000 | 14.8% | 13.8% |
| 2001 | 14.2% | 13.8% |
| 2002 | 13.8% | 13.8% |
| 2003 | 13.5% | 13.7% |
| 2004 | 13.1% | 13.6% |
| 2005 | 12.8% | 13.5% |
| 2006 | 12.4% | 13.4% |
NOTE: Bridges that are both structurally deficient and functionally obsolete are classified as structurally deficient. Numbers include the 50 U.S. states, the District of Columbia, and Puerto Rico.
SOURCES: U.S. Department of Transportation, Federal Highway Administration, National Bridge Inventory, Deficient Bridges by State and Highway System, various years, available at http://www.fhwa.dot.gov/bridge/britab.htm as of Aug. 14, 2007.