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Highway History

Designating the Urban Interstates

Interstate Highway of the Future in a Large City

Typical view of an interstate highway of the future in a large city. The divided expressway is built within a wide right-of-way.  The route is depressed to pass under bridges carrying corss traffic.  Ramps with gentle grades connect with bordering frontage streets.
Typical view of an interstate highway of the future in a large city. The divided expressway is built within a wide right-of-way. The route is depressed to pass under bridges carrying corss traffic. Ramps with gentle grades connect with bordering frontage streets

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United States Department of Transportation - Federal Highway Administration