1-2 Condition of U.S. Highway Bridges: 1990-2007
1-2 Condition of U.S. Highway Bridges: 1990-2007
| Mode | 1990 | 2000 | 2006 | 2007 |
|---|---|---|---|---|
| Total all bridges | 572,205 | 589,674 | 597,340 | 599,893 |
| Urban | 108,770 | 133,384 | 146,041 | 151,102 |
| Rural | 463,435 | 456,290 | 451,299 | 448,791 |
| Structurally deficient bridges, total | 137,865 | 86,692 | 73,784 | 72,264 |
| Urban | 16,847 | U | 12,585 | 12,882 |
| Rural | 121,018 | U | 61,199 | 59,382 |
| Functionally obsolete bridges, total | 100,355 | 81,510 | 80,317 | 81,257 |
| Urban | 30,266 | 29,398 | 32,292 | 33,096 |
| Rural | 70,089 | 52,112 | 48,025 | 48,161 |
Key: U = unavailable.
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. Data include: 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 are as of December of that year; data for 2000 are as of August of that year; data for 2006 are as of July of that year; data for 2007 are as of August of that year.
Source: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics; National Transportation Statistics, Table 1-27, available at http://www.bts.gov as of November 2007.