U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Highway History

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The Longest Road in the US Map

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This map of the Northwest shows the final routing of U.S. 20, U.S. 30, and other U.S. highways as approved by the American Association of State Highway Officials on November 11, 1926.
Updated: 10/21/2013
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000