1-2 Condition of U.S. Highway Bridges: 1990-2008

1-2 Condition of U.S. Highway Bridges: 1990-2008

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Mode 1990 2000 2007 2008
Total all bridges 572,205 589,674 599,766 601,396
Urban 108,770 133,384 151,171 153,407
Rural 463,435 456,290 448,595 447,989
Structurally deficient bridges, total 137,865 86,678 72,520 71,461
Urban 16,847 13,079 12,951 12,896
Rural 121,018 73,599 59,569 58,565
Functionally obsolete bridges, total 100,355 81,510 79,804 79,933
Urban 30,266 29,398 33,139 33,691
Rural 70,089 52,112 46,665 46,242

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, available at http://www.fhwa.dot.gov/policy/2006cpr/pdfs/chap3.pdf as of September 2009.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, 2007 and 2008 are as of December of those years and for 2000 as of August of that year.

Sources: Federal Highway Administration, Office of Bridge Technology, National Bridge Inventory Database, Count, Area, Length of Bridges by Highway System, available at http://www.fhwa.dot.gov/bridge/britab.htm as of March 2009 as reported in 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 September 2009.