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FHWA > Highway History > Interstate System > Designating the Urban Interstates > Proposed Rural routes totaling 26,700 miles of Interregional Highway

Designating the Urban Interstates

Proposed Rural routes totaling 26,700 miles of Interregional Highway

Location of routes tentatively selected as approximating the line of a proposed interregional Highway system.
Location of routes tentatively selected as approximating the line of a proposed Interregional Highway system.

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Updated: 09/13/2012
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