Interstate 75

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Interstate 75 is an interstate highway in the midwest and southeastern United States. It goes from Florida State Highway 826 (Palmetto Expressway) at Hialeah, Florida near Miami to Sault Ste. Marie, Michigan at the Ontario, Canada border.

Contents

1 History 2 Length 3 Major cities along the route 4 Intersections with other Interstates 5 Spur routes 6 Lane configurations 6.1 Michigan 6.2 Ohio 6.3 Kentucky 6.4 Tennessee 6.5 Georgia 6.6 Florida 7 Notes 8 See Also 9 External links 10 Sources

History

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, U.S. 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.

Length

Miles	km	state
470.655	757.45	Florida
355	575	Georgia
161	261	Tennessee
192	311	Kentucky
211	342	Ohio
396	642	Michigan
1786	2893	Total

Major cities along the route

• Miami, Florida
• Fort Myers, Florida
• Tampa, Florida
• Macon, Georgia
• Atlanta, Georgia
• Chattanooga, Tennessee
• Knoxville, Tennessee
• Lexington, Kentucky
• Cincinnati, Ohio
• Dayton, Ohio
• Toledo, Ohio
• Detroit, Michigan
• Flint, Michigan
• Saginaw, Michigan
• Sault Ste. Marie, 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 Dixie Lee Junction, Tennessee. They stay merged until Knoxville, Tennessee.
• Interstate 64 for 6 miles (10 km) 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 696 north of Detroit, Michigan
• Interstate 69 in Flint, Michigan

Spur routes

• Tampa, Florida/Saint Petersburg, Florida - I-175 (1.294 mi/2.08 km), I-275 (63.387 mi/102.01 km), I-375 (1.220 mi/1.96 km)
• Macon, Georgia - I-475
• Atlanta, Georgia - I-675
• Spur to Nelson, 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

Lane configurations

Michigan

• between northern terminus and south of Grayling (2 lanes on each side)
• between Grayling and U.S. Highway 127 (3 lanes southbound, 2 lanes northbound)
• between US-127 and south of CONN M-13 (2 lanes on each side)
• between CONN M-13 and U.S. Highway 10 (4 lanes southbound, 3 lanes northbound)
• between US-10 and U.S. Highway 23 (3+ lanes on each side)
• between US-23 and I-475 (2 lanes on each side)
• between I-475 and state line (3+ lanes on each side)

Ohio

• between northern state line and I-280 (3 lanes on each side)
• between I-280 and southern state line (2+ lanes on each side)

Kentucky

• between northern state line and I-71 splitoff (3 lanes on each side)
• between I-71 splitoff and southern state line (2 lanes on each side)

Tennessee

• between northern state line and I-40 (2 lanes on each side)
• multiplexed with I-40 (3 lanes on each side)
• between I-40 and southern state line (2+ lanes on each side)

Georgia

• between northern state line and Atlanta metroplex (2 lanes on each side)
• within Atlanta metroplex (3+ lanes on each side)
• between Atlanta metroples and southern state line (2+ lanes on each side)

Florida

• between state line and southern terminus (2+ lanes on each side)

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; it was constructed but was not given limited access and signed as GA Hwy 300 and called the Georgia-Florida Parkway instead.

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

In the Cincinnati area, I-75 runs together with I-71, from approximately 20 miles south of Cincinnati to the Brent Spence Bridge across the Ohio River.

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 (1.71 km). 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. There is no direct freeway connection; I-75 funnels onto city streets.

See Also

• Detroit-Toledo Expressway
• G. Mennen Williams Freeway
• Fenton-Clio Expressway
• Mackinac Bridge
• US 2 freeway (Michigan)

External links

• I-75 Online (http://www.i75online.com/) Support site for Dave Hunter's book, Along I-75
• I-75 exits in Georgia (http://roadsidegeorgia.com/interstate/75.html) Includes cities and counties
• Interstate 75 (http://www.michiganhighways.org/listings/MichHwys70-79.html#I-075) at Michigan Highways

Sources

• 2005 Rand McNally Road Atlas
• FDOT (http://www.dot.state.fl.us/planning/statistics/gis/default.htm) GIS data and pavement management reports (http://www.dot.state.fl.us/PavementManagement/pcs/pcs_rpts.htm)

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30	35	37	39	40	43	44	45
49	55	57	59	64	65	66	68
69	70	71	72	73	74	75	76 (W)
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84 (W)	84 (E)	85	86 (W)	86 (E)	87	88 (W)	88 (E)
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Unsigned Interstate Highways
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Lists Two-digit Interstates - Three-digit Interstates Gaps in Interstates - Intrastate Interstates Interstate standards - Proposed Interstates