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

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	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010
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	(R) 590,553	597,340	599,766	601,396	603,259	604,460
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	(R) 137,598	146,041	151,171	153,407	156,305	157,571
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	447,989	446,954	446,889
Structurally deficient bridges, total	137,865	134,534	118,698	111,980	107,683	104,317	101,518	98,475	93,072	88,150	86,678	83,595	81,261	79,775	77,752	75,923	73,784	72,520	71,461	71,177	69,220
Urban	16,847	17,032	16,323	15,932	15,692	15,205	15,094	14,846	14,073	12,967	13,079	12,705	12,503	12,316	12,175	12,600	12,585	12,951	12,896	12,828	12,443
Rural	121,018	117,502	102,375	96,048	91,991	89,112	86,424	83,629	78,999	75,183	73,599	70,890	68,758	67,459	65,577	63,323	61,199	59,569	58,565	58,349	56,777
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	79,933	78,477	77,412
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	33,691	33,743	33,714
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	46,242	44,734	43,698

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, 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: RuralInterstate, principal arterial, minor arterial, major collector, minor collector and local roads; UrbanInterstate, other freeways or expressways, other principal arterial, minor arterial, collector, and local roads.

Data for 1990, 1992, 1997-99, 2000, and 2007-10 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; and data for 2002-06 are as of July of those years.

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.

2001-10: 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/britab.htm as of Aug. 18, 2011.