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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

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

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


Major cities along the route

Intersections with other Interstates

Spur routes

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

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

Template:Ed divPrimary Interstate Highways Missing image
Interstate_blank.png
Interstate Highway marker

4 5 8 10 12 15 16 17
19 20 22 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 (W)
76 (E) 77 78 79 80 81 82 83
84 (W) 84 (E) 85 86 (W) 86 (E) 87 88 (W) 88 (E)
89 90 91 93 94 95 96 97
99 238 H-1 H-2 H-3
Unsigned Interstate Highways
A-1 A-2 A-3 A-4 PRI-1 PRI-2 PRI-3
Lists
Two-digit Interstates - Three-digit Interstates
Gaps in Interstates - Intrastate Interstates
Interstate standards - Proposed Interstates
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