Interstate 75 History Length Major Cities Along The Route

This limited access highway planned in the 1950s roughly follows the general route of many older at grade highways, including United States Highway 2, United States Highway 27, United States Highway 25 , United States Highway 41 among others. Some of these older U.S. Highways, several of which exist yet, in turn replaced the eastern route of the old Dixie Highway.

Miles	km	state

471	763	Florida
355	575	Georgia
161	261	Tennessee
192	311	Kentucky
211	342	Ohio
396	642	Michigan

1786	2893	Total

4 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 Dixie Lee Junction, 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

5 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, I-475
Cincinnati, Ohio - I-275
Dayton, Ohio - I-675
Toledo, Ohio - I-475
Detroit, Michigan - I-275, I-375
Flint, Michigan - I-475
Saginaw, Michigan - I-675

6 Notes

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

Originally, I-75 went through Tampa and St. Petersburg, while the current I-75 was called I-75E. But because of Interstate restrictions dealing with suffixes to routes, I-75 was rerouted along I-75E, and the original I-75 was renamed I-275.

I-175 and I-375 are very brief Interstates that go east into downtown St. Petersburg, while I-275 goes into the heart of Tampa, across the Howard Frankland Bridge into St. Petersburg, then south across the Sunshine Skyway Bridge, reconnecting with I-75 in Manatee County, Florida.

In the center of Atlanta, I-75 merges with I-85 for a short time. This strip of highway, called the Downtown Connector, is infamous for its bad traffic.

There were plans for a spur from Cordele into Albany, Georgia, called I-175, was constructed but was not given limited access and called hwy 300 Georgia-Florida turnpike instead.

Florida's Turnpike originates near Wildwood and continues southeasterly towards Miami.

In Detroit, the spur route I-375 is the shortest "signed" freeway in the United States (i.e. it has an actual sign with the road number on its stretch) at 1.06 miles. There are shorter freeways, but none are signed.

At the northern end of I-75, at Sault Ste. Marie, Michigan, the International Bridge leads into Canada, into a town also called Sault Ste. Marie, Ontario. This is the closest Interstate with a direct connection to the Trans-Canada Highway.

7 External links

Interstate 75 at Michigan Highways
2005 Rand McNally "The Road Atlas 2005" - newest feature- interstate mileage by state

Primary Interstate Highways

4	5	8	10	12	15	16	17
19	20	24	25	26	27	29	30
35	37	39	40	43	44	45	49
55	57	59	64	65	66	68	69
70	71	72	73	74	75	76	77
78	79	80	81	82	83	84	85
86	87	88	89	90	91	93	94
95	96	97	99	238	H-1	H-2	H-3
A-1	A-2	A-3	A-4	PRI-1	PRI-2	PRI-3

75 75 75 75 75 75 75

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Home > Interstate 75

1 History

2 Length

3 Major cities along the route