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Figure 1-3: Highway Bridge Condition
Excel | CSV | Graphic Version
Iowa
| 1996 |
25,624 |
4,694 |
18 |
3,023 |
12 |
7,717 |
30 |
| 1997 |
25,143 |
4,627 |
18 |
2,658 |
11 |
7,285 |
29 |
| 1998 |
25,175 |
4,729 |
19 |
2,384 |
9 |
7,113 |
28 |
| 1999 |
25,130 |
4,913 |
20 |
2,301 |
9 |
7,214 |
29 |
| 2000 |
24,632 |
5,008 |
20 |
2,116 |
9 |
7,124 |
29 |
| 2001 |
25,030 |
5,036 |
20 |
2,060 |
8 |
7,096 |
28 |
United States
| 1996 |
582,043 |
101,544 |
17 |
81,217 |
14 |
182,761 |
31 |
| 1997 |
583,207 |
98,521 |
17 |
77,466 |
13 |
175,987 |
30 |
| 1998 |
583,414 |
93,119 |
16 |
79,567 |
14 |
172,686 |
30 |
| 1999 |
585,542 |
88,150 |
15 |
81,900 |
14 |
170,050 |
29 |
| 2000 |
587,458 |
86,692 |
15 |
80,889 |
14 |
167,581 |
29 |
| 2001 |
590,066 |
83,630 |
14 |
81,469 |
14 |
165,099 |
28 |
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.
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