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Policy and Governmental Affairs
Office of Highway Policy Information

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Office of Highway Policy Information (OHPI) – Highway Finance Data Collection

High way Finance Data Collection

Our Nation's Highways: 2010

Figure 1-5: Public Road Centerline and Lane-Mile Growth: 1985-2008

Figure 1-5: Public Road Centerline and Lane-Mile Growth: 1985-2008

Data available in Excel format

By the late 1980s, the U.S. highway network was near completion. Now, virtually all population centers are linked by paved roadways. The total number of lane-miles has been increasing as highways are widened with additional lanes to carry more vehicles; on the whole, capacity has been added to existing highways rather than building new ones.

Note: In 1997, forest development roads ceased being treated as public roads. This is why Figure 1-5 (above) indicates significant drops in both centerline and lane mileage in 1998.

Data Source: US Department of Transportation, Federal Highway Administration, Office of Highway Policy Information, Highway Statistics.

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Page last modified on November 7, 2014
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000