U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Conditions and Performance
Status
of the Nation's Highways, Bridges, and Transit:
2002 Conditions and Performance Report
|
Exhibit 11-20:
Rural Superstructure Materials by Owner and Functional Classification
Exhibit 11-20 has five bar graphs that show rural superstructure materials by owner and functional classification. In the first graph, for interstates, the vertical axis measures percentages from 0 to 100 in increments of 10 percent. The horizontal axis has five bars, one for each type of bridge owner. About 58 percent of Federal rural interstate superstructures are concrete, 14 are prestressed, and 28 are steel. About half of State rural interstate superstructures are concrete, 20 percent are prestressed, and 30 are steel. About half of local rural interstate superstructures are concrete, 10 percent are prestressed, 30 are steel, and 20 are timber. About 10 percent of privately-owned rural interstate superstructures are concrete and 90 are steel. And among all owners of rural interstate superstructures, about half are concrete, 20 percent are prestressed, and 30 are steel. In the second graph, for other arterials, the vertical axis measures percentages from 0 to 100 in increments of 10 percent. The horizontal axis has five bars, one for each type of bridge owner. About 38 percent of Federal rural other arterial superstructures are concrete, 22 are prestressed, 32 are steel, and 8 are timber. About 58 percent of State rural other arterial superstructures are concrete, 20 are prestressed, and 22 are steel. About half of rural other arterial superstructures are concrete, 20 percent are prestressed, 20 are steel, and 10 are timber. About 20 percent of privately-owned rural other arterial superstructures are concrete, 20 are prestressed, 55 are steel, and 5 are timber. And among all owners of rural other arterial superstructures, about 55 percent are concrete, 20 percent are prestressed, and 25 are steel. In the third graph, for collectors, the vertical axis measures percentages from 0 to 100 in increments of 10 percent. The horizontal axis has five bars, one for each type of bridge owner. About 60 percent of Federal rural collector superstructures are concrete, 20 are prestressed, 10 are steel, 5 are timber, and 5 are other. About 58 percent of State rural collector superstructures are concrete, 15 percent are prestressed, 22 are steel, and 5 are timber. About 45 percent of local rural collector superstructures are concrete, 20 percent are prestressed, 25 are steel, and 10 are timber. About 17 percent of privately-owned rural collector superstructures are concrete, 10 are prestressed, 55 are steel, and 18 are steel. And among all owners of rural collector superstructures, about half are concrete, 20 percent are prestressed, 25 are steel, and 5 are steel. In the fourth graph, for local bridges, the vertical axis measures percentages from 0 to 100 in increments of 10 percent. The horizontal axis has five bars, one for each type of bridge owner. About 28 percent of Federal rural local superstructures are concrete, 17 are prestressed, 20 are steel, and 35 are timber. About 28 percent of State rural local superstructures are concrete, 17 are prestressed, 50 are steel, and 5 are timber. About 30 percent of locally-owned rural local superstructures are concrete, 18 percent are prestressed, 40 are steel, and 12 are timber. About 12 percent of privately-owned rural local superstructures are concrete, 8 are prestressed, 48 are steel, and 32 are timber. And among all owners of rural local superstructures, about 30 percent are concrete, 20 percent are prestressed, 38 are steel, and 12 are timber. And in the fifth graph, for all functional classes, the vertical axis has five bars for the owners and the horizontal bars measures percentages from 0 to 100 in increments of 20 percent. About 30 percent of Federal rural superstructures are concrete, 20 are prestressed, 20 are steel, and 40 are timber. About half of State rural superstructures are concrete, 22 percent are prestressed, 26 are steel, and 2 are timber. About 32 percent of local rural superstructures are concrete, 18 percent are prestressed, 32 are steel, and 18 are timber. About 12 percent of privately-owned rural superstructures are concrete, 10 are prestressed, 50 are steel, and 28 are timber. And among all owners of rural superstructures, about 40 percent are concrete, 18 are prestressed, 32 are steel, and 10 are steel.
Source: National Bridge Inventory.
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Page last modified on November 7, 2014
