Interstate 75

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Image:I-75.svg
Interstate 75
Main route of the Interstate Highway System
Image:Interstate 75 map.png
Length: 1786.5 mi[1] (2875.1 km)
South end: Image:Florida 826.svgImage:Toll Florida 924.svg 826/924 near Miami, FL
Major
junctions: 		Image:I-10.svg I-10 near Lake City, FL
Image:I-20.svg I-20 in Atlanta, GA
Image:I-40.svg I-40 in Knoxville, TN
Image:I-70.svg I-70 near Dayton, OH
Image:I-80.svgImage:I-90.svgImage:OhioTurnpike.svg I-80/I-90/OH Tpk near Toledo, OH
North end: US/Canada border in Sault Ste. Marie, ON
(to Image:Ontario 17.svgImage:TCH blank.svg Hwy 17 / TCH )
Image:Commons-logo.svg
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Interstate 75

Interstate 75 (abbreviated I-75) is a major north-south interstate highway in the midwest and southeastern United States. It travels from State Road 826 (Palmetto Expressway) and State Road 924 (Gratigny Parkway) in Hialeah, Florida (just west of Miami) to Sault Ste. Marie, Michigan, at the Ontario, Canada border.

Contents

[edit] Route description

Lengths
mi[1] km
FL 470.88 757.81
GA 355.11 571.49
TN 161.86 260.49
KY 191.78 308.64
OH 211.3 340.1
MI 395.54 636.56
Total 1786.5 2875.1
Major cities
Bolded cities are officially-designated control cities for signs[citation needed]

[edit] Florida

Main article: Interstate 75 in Florida

Interstate 75 begins its northerly journey at an interchange with State Road 924 and State Road 826 in Hialeah, a suburb of Miami. After intersections with Interstate 595 and the Florida's Turnpike, the interstate leaves the Miami metropolitan area and turns westward to travel along Alligator Alley, which brings the freeway to the Gulf Coast and Naples, where it again heads north. Passing through Bonita Springs, Fort Myers, and Sarasota, Interstate 75 encounters a series of construction projects that will increase the lane count from two lanes in each direction to three. The freeway enters the Tampa Bay metropolitan area after an interchange with Interstate 275 northbound, which handles St. Petersburg-bound traffic. Within the Tampa metro are two more major junctions: One with Interstate 4 and another as Interstate 275 traffic defaults back onto northbound. The freeway proceeds to enter rural portions of Pasco, Hernando, and Citrus counties on its way to Ocala and Gainesville. At Lake City, transcontinental Interstate 10 meets Interstate 75, providing access to Tallahassee and Jacksonville; and a few miles later, we exit the sunshine state into southern Georgia.

[edit] Georgia

Main article: Interstate 75 in Georgia

Interstate 75 enters Georgia near Valdosta, and continues northward through the city of Tifton until it reaches Macon, where it intersects Interstate 16 eastbound for Savannah. For northbound traffic wishing to avoid potential congestion in Macon, Interstate 475 rises to the occasion, providing a relatively short bypass to the west of the city and Interstate 75's alignment. The freeway reaches no major junctions again until the Atlanta metropolitan area. The first metro freeway met is Interstate 675, which is quickly followed by the Atlanta bypass, Interstate 285. The road shares pavement with Interstate 85 for a while through the central business district of Atlanta. After the split, Interstate 75 beelines for Interstate 285 and the suburb of Marietta. North of Marietta, the final major junction in the Atlanta metro area is with Interstate 575. The freeway then traverses the rugged northeastern Georgia terrain as it heads towards Chattanooga, Tennessee.

[edit] Tennessee

Main article: Interstate 75 in Tennessee

The freeway enters Tennessee directly in the Chattanooga metropolitan area, where it meets Interstate 24 westbound for Nashville commuters. Exiting Chattanooga to the northeast, Interstate 75 does not meet any other highways until it duplexes itself with Interstate 40 and heads eastbound. Together, they enter the outskirts of Knoxville, where Interstate 75 duplexes itself with a different road, this time Interstate 640, but only for a short time. When the two meet Interstate 275, Interstate 75 becomes its own freeway and heads north towards the Kentucky border.

[edit] Kentucky

Main article: Interstate 75 in Kentucky

Interstate 75 continues northbound in Kentucky without any major cities or junctions until reaching Lexington, where it briefly runs coterminiously with Interstate 64 before splitting off to make a beeline for Cincinnati, Ohio. En route, near Walton, Interstate 71 nouthbound merges onto Interstate 75, making for yet another duplexed portion of freeway. Interstate 275 -- which is the southern half of the Cincinnati beltway, is then intersected by Interstate 71/75. After passing through the suburb of Covington, the duplex crosses the Ohio River and continues into Cincinnati, Ohio.

[edit] Ohio

Main article: Interstate 75 in Ohio

Immediately after entering Cincinnati, Interstate 71 separates from Interstate 75, taking a more easterly routing through the city, while Interstate 75 remains generally northbound throughout the metropolitan area. Interstate 74 westbound, State Road 562 eastbound, and State Road 126 all disect the freeway as it makes its way northward. In the Arlington Heights neighborhood of Cincinnati, Interstate 75 sees a carriageway split for a few miles. And after yet another interchange with the Interstate 275 beltway, the freeway finally leaves the metropolitan area and heads towards Dayton, where Interstate 675 and Interstate 70 have interchanges. After exiting Dayton, Interstate 75 makes its way northbound through Ohio -- managing to miss many of the state's major cities -- until Toledo, which is located very close to the Michigan border. Interstate 475 is met first in that city, and then the cross-country Interstate 90/Interstate 80 toll road duplex. Interstate 280 is the last major junction in Ohio; the freeway crosses into Michigan soon afterwards.

Image:Mackinac Bridge.jpg
Mackinac Bridge

[edit] Michigan

Main article: Interstate 75 in Michigan

Interstate 75 hugs the western shore of Lake Erie upon entering Michigan -- until about Monroe, when it kinks westward and prepares to enter Detroit and its surrounding suburbs. Yet another Interstate 275 is met as the freeway goes deeper into the Detroit metro area, and no other major junctions are present until downtown. Once downtown, Interstate 75 meets the Ambassador Bridge to Windsor, Canada, Canada, Interstate 375 (Chrysler Freeway), Interstate 94, and M-8 (Davison Freeway). Interstate 696 also intersects I-75 in the northern metro area. When the freeway reaches Pontiac, there is a junction with M-59; and further north in Flint, the interstate meets Interstate 475 and Interstate 69. The road is now heading north towards Saginaw, where Interstate 675 acts as a spur route into the city. Further north in Bay City, the major junction of US 10 exists, providing access to Midland as well as downtown Bay City. At Mackinaw City, I-75 crosses the Mackinac Bridge to reach the Upper Peninsula, where the road terminates at the Canadian border in Sault Ste. Marie.

[edit] History

This limited access highway planned in the 1950s roughly follows the general route of many older at grade highways, including U.S. Route 2, U.S. Route 27, U.S. Route 25, and U.S. Route 41, among others. Some of these older U.S. Routes (several of which are still in existence) in turn replaced the eastern route of the old Dixie Highway. The final stretch of Interstate 75 was completed in 1986 in Dade (present Miami-Dade) and Broward Counties in Florida, although the last stretch to receive the I-75 signage was a revamped Alligator Alley in 1993.

[edit] Major intersections

Image:826.JPG
Interstate 75 ends at this interchange with State Road 826 (Florida).
Image:Atlanta 75.85.jpg
I-75 co-signed with I-85 in downtown Atlanta

[edit] Auxiliary routes

Image:I-75.svg
Auxiliary routes of Interstate 75
Current and Future (F) Former
Image:I-175.svg Florida - Kentucky/Tennessee (F)
Image:I-275.svg Florida - Indiana/Kentucky/Ohio - Michigan - Tennessee
Image:I-375.svg Florida - Michigan
Image:I-475.svg Georgia - Michigan - Ohio
Image:I-575.svg Georgia
Image:I-675.svg Georgia - Michigan - Ohio

[edit] References

  1. ^ a b Route Log and Finder List - Interstate System: Table 1. FHWA. Retrieved on 2007-10-02.

[edit] External links

edit
Main Interstate Highways (multiples of 5 in pink) 		Image:I-blank.svg
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  A-1 A-2 A-3 A-4 PRI-1 PRI-2 PRI-3
Lists  Primary  Main - Intrastate - Suffixed - Future - Gaps
Auxiliary  Main - Future - Unsigned
Other  Standards - Business - Bypassed
Browse numbered routes
< Image:Florida 74.svg SR 74 FL SR 75 Image:Florida 75.svg >
< Image:Georgia 74.svg SR 74 GA SR 75 Image:Georgia 75.svg >
< Image:Elongated circle 74.svg KY 74 KY KY 76 Image:Elongated circle 76.svg >
< Image:I-74.svg I-74 OH I-76 Image:I-76.svg >
< Image:M-74.svg M-74 MI M-75 Image:M-75.svg >
de:Interstate 75

fr:Interstate 75 ja:州間高速道路75号線 pl:Autostrada międzystanowa nr 75 simple:Interstate 75 zh:75號州際公路

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