Figure 1-2: Highway Bridge Condition:

Figure 1-2: Highway Bridge Condition:

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District of Columbia

Year Total # of Bridges Structurally deficient Functionally obsolete
# % # %
1996 314 60 19.1 136 43.3
1997 313 56 17.9 159 50.8
1998 311 56 18.0 166 53.4
1999 331 45 13.6 188 56.8
2000 250 28 11.2 134 53.6
2001 243 25 10.3 136 56.0

United States

Year Total # of Bridges Structurally deficient Functionally obsolete
# % # %
1996 582,043 101,544 17 81,217 14
1997 583,207 98,521 17 77,466 13
1998 583,414 93,119 16 79,567 14
1999 585,542 88,150 15 81,900 14
2000 587,458 86,692 15 80,889 14
2001 590,066 83,630 14 81,469 14

SOURCE: U.S. Department of Transportation, Federal Highway Administration, National Bridge Inventory: Deficient Bridges by State and Highway System, Washington, DC: 2001, available at http://www.fhwa.dot.gov/bridge/britab.htm as of Jan. 31, 2002.