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FHWA > Highway History > Interstate System > Designating the Urban Interstates > Design for a Depressed Express Highway

Designating the Urban Interstates

Design for a Depressed Express Highway

Sketch showing the general features of a desirable design for a depressed express highway in a city
Sketch showing the general features of a desirable design for a depressed express highway in a city

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Updated: 09/13/2012