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

Designating the Urban Interstates

An elevated section of the interregional system with exit ramps and lateral entrance ramps.

An elevated section of the interregional system as it might be built according to the standards propesed, with central exit ramps and lateral entrance ramps. The sketch suggests the manner in which new properties might conform to curving lines of the expressway in widened sections at access points, and a show window at the elevated level dressed appropriately with the kind of large display that would be needed for comprehension by express traffic
An elevated section of the interregional system as it might be built according to the standards propesed, with central exit ramps and lateral entrance ramps. The sketch suggests the manner in which new properties might conform to curving lines of the expressway in widened sections at access points, and a show window at the elevated level dressed appropriately with the kind of large display that would be needed for comprehension by express traffic

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