Figure 3: Bridges by Year Built
Wednesday, November 21, 2012
Figure 3: Bridges by Year Built
As of December 2006
Excel | CSV | Graphic Version
| Age | 0-4 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85-89 | 90-94 | 95-100 | >100 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Structurally Deficient | 0 | 0 | 816 | 1,246 | 1,460 | 2,014 | 3,456 | 5,129 | 6,184 | 7,447 | 5,450 | 5,553 | 1,783 | 7,130 | 6,546 | 6,049 | 2,794 | 2,995 | 1,718 | 2,053 | 3,871 |
| Functionally Obsolete | 0 | 0 | 3,337 | 4,134 | 3,344 | 3,082 | 4,461 | 6,985 | 9,889 | 9,858 | 6,763 | 5,155 | 1,348 | 4,786 | 4,844 | 4,386 | 2,322 | 1,617 | 888 | 804 | 2,174 |
| No Deficiences | 25,554 | 37,954 | 35,641 | 38,020 | 34,643 | 31,671 | 34,946 | 39,799 | 39,245 | 33,334 | 20,586 | 15,453 | 4,045 | 15,070 | 13,034 | 11,243 | 4,136 | 2,562 | 1,106 | 1,022 | 3,873 |
| Total | 25,554 | 37,954 | 39,794 | 43,400 | 39,447 | 36,767 | 42,863 | 51,913 | 55,318 | 50,639 | 32,799 | 26,161 | 7,176 | 26,986 | 24,424 | 21,678 | 9,252 | 7,174 | 3,712 | 3,879 | 9,918 |
NOTE: Bridges that are both structurally deficient and fuctionally obsolete are classified as structurally deficient. Numbers include the 50 U.S. States, the District of Columbia, and Puerto Rico
SOURCE: U.S. Department of Transportation, Federal Highway Administration, National Bridge Inventory, Bridge by Year Built, 2006, available at http://www.fhwa.dot.gov/bridge/structyr.htm as of Aug. 8, 2007