Table 1 - Bridge Conditions by Functional Class: 1999

Table 1 - Bridge Conditions by Functional Class: 1999

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Type of roadway Not deficient Structurally deficient Functionally obsolete
Number Percent Number Percent Number Percent
Rural            
Interstates 23,021 84 1,098 4 3,395 12
Other principal arterials 29,317 83 2,305 7 3,734 11
Minor arterials 30,656 79 3,581 9 4,612 12
Major collectors 73,354 77 11,979 13 10,315 11
Minor collectors 34,468 72 7,158 15 5,928 12
Local roads 136,099 65 49,332 23 24,851 12
Rural total 326,915 72 75,453 17 52,835 12
Urban            
Interstates 20,233 73 1,692 6 5,805 21
Other freeways and expressways 11,457 73 928 6 3,347 21
Other principal arterials 16,037 67 2,424 10 5,431 23
Minor arterials 14,126 62 2,576 11 5,992 26
Collectors 9,313 62 1,959 13 3,708 25
Local roads 17,141 68 3,388 13 4,782 19
Urban total 88,307 68 12,967 10 29,065 22
Rural and urban total 415,222 71 88,420 15 81,900 14

SOURCE: U.S. Department of Transportation, Federal Highway Administration, Office of Engineering, Bridge Division, National Bridge Inventory database, available at http://www.fhwa.dot.gov/bridge/britab.htm, as of Oct. 27, 2000.