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Condition of U.S. Highway Bridges: 1990-2007
As of April 24, 2008
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| TOTAL all bridges |
572,205 |
574,036 |
572,197 |
573,716 |
576,460 |
581,135 |
581,863 |
582,751 |
582,976 |
585,542 |
589,674 |
589,685 |
590,887 |
591,940 |
593,813 |
595,363 |
597,340 |
599,766 |
| Urban |
108,770 |
112,363 |
115,312 |
117,488 |
121,141 |
122,537 |
124,950 |
127,633 |
128,312 |
130,339 |
133,384 |
133,401 |
135,339 |
135,415 |
137,598 |
142,408 |
146,041 |
151,171 |
| Rural |
463,435 |
461,673 |
456,885 |
456,228 |
455,319 |
458,598 |
456,913 |
455,118 |
454,664 |
455,203 |
456,290 |
456,284 |
455,548 |
456,525 |
456,215 |
452,955 |
451,299 |
448,595 |
| Structurally deficient bridges, total |
137,865 |
134,534 |
118,698 |
111,980 |
107,683 |
104,317 |
101,518 |
98,475 |
93,072 |
88,150 |
(R) 86,678 |
83,595 |
81,261 |
79,775 |
77,752 |
75,923 |
73,784 |
72,520 |
| Urban |
16,847 |
17,032 |
16,323 |
15,932 |
15,692 |
15,205 |
15,094 |
14,846 |
14,073 |
12,967 |
(R) 13,079 |
12,705 |
12,503 |
12,316 |
12,175 |
12,600 |
12,585 |
12,951 |
| Rural |
121,018 |
117,502 |
102,375 |
96,048 |
91,991 |
89,112 |
86,424 |
83,629 |
78,999 |
75,183 |
(R) 73,599 |
70,890 |
68,758 |
67,459 |
65,577 |
63,323 |
61,199 |
59,569 |
| Functionally obsolete bridges, total |
100,355 |
97,593 |
80,393 |
80,000 |
79,832 |
80,950 |
81,208 |
77,410 |
79,500 |
81,900 |
81,510 |
81,439 |
81,537 |
80,990 |
80,567 |
80,412 |
80,317 |
79,804 |
| Urban |
30,266 |
30,842 |
26,243 |
26,511 |
27,024 |
27,487 |
28,087 |
26,865 |
27,588 |
29,065 |
29,398 |
29,383 |
29,675 |
29,886 |
30,298 |
31,391 |
32,292 |
33,139 |
| Rural |
70,089 |
66,751 |
54,150 |
53,489 |
52,808 |
53,463 |
53,121 |
50,545 |
51,912 |
52,835 |
52,112 |
52,056 |
51,862 |
51,104 |
50,269 |
49,021 |
48,025 |
46,665 |
KEY: R = revised.
NOTES:
Explanations for the terms Structurally Deficient and Functionally Obsolete can be found on pages 14 and 15 in Chapter 3 of the Federal Highway Administration, 2006 Conditions and Performance Report; the following is a link to Chapter 3 of the report: http://www.fhwa.dot.gov/policy/2006cpr/pdfs/chap3.pdf.
U.S. totals include the 50 states, the District of Columbia, and Puerto Rico.
Table includes: Rural–Interstate, principal arterial, minor arterial, major collector, minor collector and local roads; Urban–Interstate, other freeways or expressways, other principal arterial, minor arterial, collector, and local roads.
Data for 1990, 1992, 1997-99, and 2001 are as of December of those years; data for 1991 and 1994-96 are as of June of those years; data for 1993 are as of September of that year; data for 2000 are as of August of that year; data for 2002-06 are as of July of those years.Data for 2007 is as of December.
SOURCES:
1990-2000:
U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics; based on data from Federal Highway Administration, Office of Bridge Technology, National Bridge Inventory Database, personal communication, Aug. 14, 2001 and Apr. 24, 2008.
2001-07: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics;
based on data from Federal Highway Administration, Office of Bridge Technology, National Bridge Inventory Database, Count of Bridges by Highway System, Internet site http://www.fhwa.dot.gov/bridge/britab.htm as of Mar. 13, 2008.
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