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Figure 1-1: Rural Road Conditions in Iowa: 2000
Excel | CSV | Graphic Version
(Miles)
| Total |
635 |
3,345 |
3,584 |
911 |
| Very good |
67 |
369 |
817 |
84 |
| Good |
281 |
1,142 |
760 |
227 |
| Fair |
164 |
1,470 |
1,424 |
442 |
| Mediocre |
123 |
324 |
444 |
55 |
| Poor |
0 |
40 |
139 |
103 |
(Percent)
| Total |
100 |
100 |
100 |
100 |
| Very good |
11 |
11 |
23 |
9 |
| Good |
44 |
34 |
21 |
25 |
| Fair |
26 |
44 |
40 |
49 |
| Mediocre |
19 |
10 |
12 |
6 |
| Poor |
0 |
1 |
4 |
11 |
NOTE FOR DATA ON THIS PAGE: Road condition is based on measured pavement roughness using the International Roughness Index (IRI). IRI is a measure of surface condition. A comprehensive measure of pavement condition would require data on other pavement distresses such as rutting, cracking, and faulting.
SOURCE FOR DATA ON THIS PAGE: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics, Washington, DC: annual editions, tables HM-63 and HM-64, available at http://www.fhwa.dot.gov/ as of Feb. 1, 2002.
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