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


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Designating the Urban Interstates

Postwar Federal-aid projects on Interstate Highway

The map illustrates how designation of the Interstate System has had the desired effect of centering official and public attention on these most important routes of the Nation
The map illustrates how designation of the Interstate System has had the desired effect of centering official and public attention on these most important routes of the Nation.

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Updated: 10/09/2013
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000