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Interstate 75

Interstate 75 is an interstate highway in the midwest and southeastern United States. It goes from Florida State Highway 826 at Fort Lauderdale, Florida to Sault Ste. Marie, Michigan at the Canadian border. It is part of the National Defense Highway System.

Table of contents
1 History
2 Number of Miles
3 Major Cities Along the Route
4 Intersections with other Interstates
5 Spur Routes
6 Notes


This limited access highway planned in the 1950s roughly follows the general route of the older at grade United States Highway 27, which in turn replaced the western route of the old Dixie Highway.

Number of Miles


Major Cities Along the Route

Intersections with other Interstates

Spur Routes


I-75 connects
Canada with the southern tip of Florida. The Alligator Alley section west of Ft. Lauderdale is due east/west.

I-375 in Tampa apparently still exists, but it's so small that maps don't always bother labelling it.

I-475 around Macon is shorter than the main route I-75. The only other examples of this phenonenon (to my knowledge) are I-10 which has two, both in Louisiana; and I-64, which has two of its own in the Hampton Roads area of Virginia.