Table 1-28: Condition of U.S. Highway Bridges

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  1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 (R) 2000 (R) 2001 (R) 2002 (R) 2003 (R) 2004 (R) 2005 (R) 2006 (R) 2007 (R) 2008 2009 (R) 2010 (R) 2011 2012
TOTAL all bridges 572,205 574,036 572,197 573,716 576,460 581,135 581,863 582,751 582,976 585,542 587,135 589,673 590,868 591,922 593,812 595,362 597,339 599,765 601,396 603,259 604,460 605,087 607,378
Urban 108,770 112,363 115,312 117,488 121,141 122,537 124,950 127,633 128,312 130,339 131,778 133,397 135,339 135,415 137,598 142,408 146,041 151,171 153,407 156,305 157,571 158,864 160,605
Rural 463,435 461,673 456,885 456,228 455,319 458,598 456,913 455,118 454,664 455,203 455,357 456,276 455,529 456,507 456,214 452,954 451,298 448,594 447,989 446,954 446,889 446,223 446,773
Structurally deficient bridges, total 137,865 134,534 118,698 111,980 107,683 104,317 101,518 98,475 93,072 88,150 89,415 86,107 83,992 82,244 79,949 77,835 75,401 74,056 72,870 71,177 72,397 68,755 66,749
Urban 16,847 17,032 16,323 15,932 15,692 15,205 15,094 14,846 14,073 12,967 13,442 13,060 12,885 12,670 12,540 12,944 12,884 13,291 13,244 12,828 13,135 12,271 11,967
Rural 121,018 117,502 102,375 96,048 91,991 89,112 86,424 83,629 78,999 75,183 75,973 73,047 71,107 69,574 67,409 64,891 62,517 60,765 59,626 58,349 59,262 56,484 54,782
Functionally obsolete bridges, total 100,355 97,593 80,393 80,000 79,832 80,950 81,208 77,410 79,500 81,900 91,132 91,309 90,775 90,296 90,062 89,989 89,564 89,066 89,175 (R) 87,455 85,857 84,832 84,748
Urban 30,266 30,842 26,243 26,511 27,024 27,487 28,087 26,865 27,588 29,065 33,214 33,475 33,691 33,952 34,497 35,711 36,546 37,654 38,228 (R) 38,295 38,067 38,231 38,491
Rural 70,089 66,751 54,150 53,489 52,808 53,463 53,121 50,545 51,912 52,835 57,918 57,834 57,084 56,344 55,565 54,278 53,018 51,412 50,947 (R) 49,160 47,790 46,601 46,257

KEY: R = revised.

NOTES

Deficiency (Structurally Deficient, SD, and Functionally Obsolete, FO) are defined in http://www.fhwa.dot.gov/bridge/0650dsup.cfm (Note: Bridges with a Year Built or Year Reconstructed within the past 10 years will not be assigned a deficient status.) Therefore, when referring to the deficiency being calculated not using the 10-yr rule, the status will be calculated without taking into consideration the year built or the year reconstructed. A text definition of SD and FO can be found in the Bridge Conditions section of Chapter 3 of the latest "Status of the Nation's Highways, Bridges, and Transit: Conditions & Performance, Report to Congress" http://www.fhwa.dot.gov/policy/2010cpr (for details, go to http://www.fhwa.dot.gov/bridge/britab.cfm).

Explanations for the terms Structurally Deficient and Functionally Obsolete for years before 2000 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.

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, 2000, and 2001-12 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.

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 (NBI), personal communication, Aug. 14, 2001 and Apr. 24, 2008.

2001-12: U.S. Department of Transportation, Federal Highway Administration, Office of Bridge Technology, National Bridge Inventory (NBI), Count of Bridges by Highway System, available at http://www.fhwa.dot.gov/bridge/fc.cfm as of Jun. 14, 2013.