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

History

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

1775

• Florida - 473 miles
• Georgia - 339 miles
• Tennessee - 162 miles
• Kentucky - 193 miles
• Ohio - 213 miles
• Michigan - 395 miles

Major Cities Along the Route

• Fort Lauderdale, Florida
• Tampa, Florida
• Macon, Georgia
• Atlanta, Georgia
• Chattanooga, Tennessee
• Knoxville, Tennessee
• Lexington, Kentucky
• Cincinnati, Ohio
• Dayton, Ohio
• Toledo, Ohio
• Detroit, Michigan
• Flint, Michigan

Intersections with other Interstates

• Interstate 4 in Tampa, Florida
• Interstate 10 in Lake City, Florida
• Interstate 16 in Macon, Georgia
• Interstate 85 in Atlanta, Georgia
• Interstate 20 in Atlanta, Georgia
• Interstate 24 in Chattanooga, Tennessee
• Interstate 40 near Pine Top, Tennessee. They stay merged until Knoxville, Tennessee.
• Interstate 64 for 6 miles in Lexington, Kentucky
• Interstate 71 in Walton, Kentucky. They stay connected until Cincinnati, Ohio.
• Interstate 74 in Cincinnati, Ohio
• Interstate 70 in Dayton, Ohio
• Interstate 80 in Toledo, Ohio
• Interstate 90 in Toledo, Ohio
• Interstate 96 in Detroit, Michigan
• Interstate 94 in Detroit, Michigan
• Interstate 69 in Flint, Michigan

Spur Routes

• Tampa, Florida/Saint Petersburg, Florida - I-175, I-275, I-375
• Macon, Georgia - I-475
• Atlanta, Georgia - I-675
• Spur to Ball Ground, Georgia, I-575
• Knoxville, Tennessee - I-275
• Cincinnati, Ohio - I-275
• Dayton, Ohio - I-675
• Toledo, Ohio - I-475
• Detroit, Michigan - I-275, I-375
• Flint, Michigan - I-475

Notes

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.