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 |
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Table 1-3
Highway Bridge Conditions: 1990 and 1997
| RURAL |
|
|
|
|
|
|
|
|
| Principal arterials-- Interstates |
5.2 |
20.9 |
73.9 |
29,076 |
4.5 |
12.2 |
83.3 |
28,073 |
| Principal arterials-- Other |
8.4 |
14.9 |
76.7 |
32,169 |
7.0 |
10.7 |
82.3 |
34,813 |
| Minor arterials |
14.1 |
14.5 |
71.3 |
40,927 |
10.4 |
11.8 |
77.9 |
38,401 |
| Major collectors |
19.5 |
13.3 |
67.2 |
103,979 |
13.4 |
10.4 |
76.2 |
95,751 |
| Minor collectors |
23.2 |
16.0 |
60.8 |
48,797 |
17.0 |
10.9 |
72.1 |
47,390 |
| Local roads |
38.1 |
15.2 |
46.7 |
208,487 |
26.1 |
11.3 |
62.6 |
210,678 |
| Total rural |
26.1 |
15.1 |
58.8 |
463,435 |
18.4 |
11.1 |
70.5 |
455,106 |
| URBAN |
|
|
|
|
|
|
|
|
| Principal arterials-- Interstates |
9.9 |
30.2 |
60.0 |
24,435 |
7.4 |
19.4 |
73.2 |
27,142 |
| Principal arterials-- other freeways/expressways |
9.2 |
32.0 |
58.8 |
11,890 |
7.0 |
20.1 |
72.9 |
15,170 |
| Other principal arterials |
15.9 |
27.0 |
57.1 |
21,403 |
11.9 |
21.7 |
66.4 |
23,297 |
| Major arterials |
17.4 |
29.0 |
53.7 |
18,580 |
13.4 |
25.3 |
61.3 |
23,300 |
| Collectors |
20.2 |
29.0 |
50.8 |
11,876 |
15.2 |
23.4 |
61.4 |
14,939 |
| Local roads |
21.0 |
21.7 |
57.3 |
20,586 |
15.1 |
17.6 |
67.3 |
24,780 |
| Total urban |
15.5 |
27.8 |
56.7 |
108,770 |
11.6 |
21.0 |
67.3 |
127,628 |
| URBAN AND RURAL |
24.1 |
17.5 |
58.4 |
572,205 |
16.9 |
13.3 |
69.8 |
582,734 |
SOURCE: U.S. Department of Transportation, Federal Highway Administration, National Bridge Inventory Database, 1998.
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