Figure 1-3: Highway Bridge Condition,,,,,,,
Iowa,,,,,,,
Year,Total # of Bridges,Structurally deficient  ,,Functionally obsolete,,Total of Both,
,,,,,,,
,,#,%,#,%,#,%
1996,"25,624","4,694",18,"3,023",12,"7,717",30
1997,"25,143","4,627",18,"2,658",11,"7,285",29
1998,"25,175","4,729",19,"2,384",9,"7,113",28
1999,"25,130","4,913",20,"2,301",9,"7,214",29
2000,"24,632","5,008",20,"2,116",9,"7,124",29
2001,"25,030","5,036",20,"2,060",8,"7,096",28
United States,,,,,,,
Year,Total # of Bridges,Structurally deficient  ,,Functionally obsolete,,Total of Both,
,,#,%,#,%,#,%
1996,"582,043","101,544",17,"81,217",14,"182,761",31
1997,"583,207","98,521",17,"77,466",13,"175,987",30
1998,"583,414","93,119",16,"79,567",14,"172,686",30,,,,,,
1999,"585,542","88,150",15,"81,900",14,"170,050",29,,,,,,
2000,"587,458","86,692",15,"80,889",14,"167,581",29,,,,,,
2001,"590,066","83,630",14,"81,469",14,"165,099",28,,,,,,
"SOURCE:  U.S. Department of Transportation, Federal Highway Administration, National Bridge Inventory: Deficient Bridges by State and Highway System, Washington, DC: 2001, available at http://www.fhwa.dot.gov/bridge/britab.htm as of Jan. 31, 2002.   ",,,,,,,,,,,,,
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