Interstate 75
Route information | |
---|---|
Length | 1,786.47 mi[1] (2,875.04 km) |
Existed | 1957–present |
NHS | Entire route |
Major junctions | |
South end | SR 826 / SR 924 in Miami Lakes, FL |
| |
North end | Canadian border on Int'l Bridge at the Sault Sainte Marie Border Crossing |
Location | |
Country | United States |
States | Florida, Georgia, Tennessee, Kentucky, Ohio, Michigan |
Highway system | |
Interstate 75 (I-75) is a major north–south Interstate Highway in the Great Lakes and Southeastern regions of the United States. As with most Interstates that end in 5, it is a major cross-country, north–south route, traveling from State Road 826 (SR 826, Palmetto Expressway) and SR 924 (Gratigny Parkway) on the Hialeah–Miami Lakes border (northwest of Miami, Florida) to Sault Ste. Marie, Michigan, at the Canadian border. It is the second-longest north–south Interstate Highway (after I-95) and the seventh-longest Interstate Highway overall.[2]
I-75 passes through six different states. The highway runs the length of the Florida peninsula from the Miami area and up the Gulf Coast through Tampa. Farther north in Georgia, I-75 continues on through Macon and Atlanta before running through Chattanooga and Knoxville and the Cumberland Mountains in Tennessee. I-75 crosses Kentucky, passing through Lexington before crossing the Ohio River into Cincinnati, Ohio. In Ohio, the highway runs up the western side through Dayton and Lima before crossing into Michigan north of Toledo. I-75 runs northeasterly along the Lake Erie shoreline and Detroit River into the city of Detroit before turning northwesterly and northward to the Mackinac Bridge where the freeway crosses the strait between Lakes Huron and Michigan. Farther north, I-75 approaches the Canadian border at Sault Ste. Marie, downriver from Lake Superior, 1,786.5 miles (2,875.1 km) from its origins near the subtropical Atlantic Ocean.
Route description
mi[1] | km
| |
---|---|---|
FL | 470.88 | 757.81 |
GA | 355.11 | 571.49 |
TN | 161.86 | 260.49 |
KY | 191.78 | 308.64 |
OH | 211.30 | 340.05 |
MI | 395.54 | 636.56 |
Total | 1786.47 | 2875.04 |
Florida
I-75 starts at an interchange with
Georgia
I-75 (unsigned State Route 401 [SR 401] within Georgia) enters
Tennessee
The freeway enters Tennessee directly in the Chattanooga metropolitan area, where it intersects with I-24. Exiting Chattanooga to the northeast, I-75 passes through an area known for dense fog. Twelve people were killed and 42 were injured in a 1990 I-75 fog disaster on that stretch of I-75 in heavy fog on December 11, 1990.[3] I-75 does not meet any other freeways until it overlaps I-40 near Farragut and heads eastbound. Together, they enter the outskirts of Knoxville, where I-75 overlaps itself with a different road, this time I-640, but only for a short time. When the two meet I-275, I-75 encounters some of its highest points of elevation through the Cumberland Mountains, cutting through the uppermost peaks and ridges.
Kentucky
I-75 continues northbound through the hilly terrain of the Cumberland Plateau region of
Ohio
Immediately after entering
Michigan
Upon entering
History
This limited access highway that was planned in the 1950s roughly follows the general route of many older at-grade highways, including US 2, US 27, US 25, and US 41, among others. Some of these older US Highways (several of which are still in existence) previously had replaced the eastern route of the old Dixie Highway.
I-75 was planned to end in
I-75 was completed in Kentucky in 1970. The last segment in Michigan opened to traffic on November 1, 1973.[7] The last section of I-75 in Tennessee was completed on December 20, 1974.[8] On December 21, 1977, I-75 was completed from Tampa to Sault Ste. Marie with its final segment opening between northern Marietta, Georgia, and Cartersville, Georgia. It was estimated to have cost $3.5 billion in 1977 dollars (equivalent to $13.3 billion in 2023[9]) to build the original section.[10] The final stretch of I-75 in South Florida was completed in 1986 in Miami-Dade and Broward counties, and the last stretch to receive the signs for I-75 was the reconstructed (rebuilt and widened) Alligator Alley on November 25, 1992.[11]
Junction list
- Florida
- SR 826 / SR 924 on the Hialeah–Miami Lakes city line
- I-595 on the Davie–Sunrise-Weston tripoint
- US 27 in Weston
- US 17 on the Solana–Cleveland CDP line
- US 301 in Ellenton
- I-275 east-northeast of Terra Ceia
- US 301 in Palm River-Clair Mel
- I-4 in Mango
- I-275 on the Lutz–Wesley Chapel CDP line
- US 98 west-northwest of Ridge Manor
- Florida's Turnpike southeast of Ocala
- US 27 in Ocala
- US 441 in Alachua
- US 41 / US 441 in Ellisville
- US 90 in Lake City
- I-10 west-northwest of Five Points
- US 129 north-northeast of Suwannee Springs
- Georgia
- US 84 / US 221 in Valdosta
- US 41 northwest of Valdosta. The highways travel concurrently to Hahira.
- US 82 in Tifton
- US 41 in Tifton
- US 280 in Cordele
- US 41 in Unadilla
- US 41 in Perry
- US 341 in Perry
- I-475 southwest of Macon
- US 41 in Macon
- US 80 in Macon
- I-16 in Macon
- US 23 northwest of Macon
- I-475 northwest of Bolingbroke
- I-675 in Stockbridge
- US 19 / US 41 west of Morrow
- I-285 in Forest Park
- US 19 / US 41 on the Atlanta–Hapeville city line
- I-85 in Atlanta. The highways travel concurrently through Atlanta.
- I-20 in Atlanta
- US 29 / US 78 / US 278 in Atlanta
- I-85 in Atlanta. End of the concurrency with I-85.
- US 41 in Atlanta
- US 41 in Atlanta
- I-285 in Cumberland
- I-575 north-northwest of Marietta
- US 411 in Cartersville
- US 41 in Resaca
- US 41 / US 76 in Dalton
- US 41 / US 76 southeast of Ringgold
- Tennessee
- US 41 / US 76 in East Ridge
- I-24 on the East Ridge–Chattanooga city line
- US 11 / US 64 in Chattanooga. The highways travel concurrently to north of Collegedale.
- US 74 in Cleveland
- US 321 in Lenoir City
- I-40 west of Farragut. The highways travel concurrently to Knoxville.
- I-140in Knoxville
- US 11 / US 70 in Knoxville
- I-40 / I-640 in Knoxville. I-75/I-640 travels concurrently through Knoxville.
- US 25W in Knoxville. The highways travel concurrently through Knoxville.
- I-275 / I-640 / US 25W in Knoxville
- US 441 in Rocky Top
- US 25W in Rocky Top. The highways travel concurrently to Caryville.
- US 25W in Jellico
- Kentucky
- US 25W in Goldbug
- US 25W in Corbin
- US 25 east-southeast of Mount Vernon
- US 25 in Mount Vernon
- US 25 in Richmond
- US 25 / US 421 south-southeast of Lexington. The highways travel concurrently to Lexington.
- US 60 in Lexington
- I-64 in Lexington. The highways travel concurrently through Lexington.
- US 27 / US 68 in Lexington
- US 460 in Georgetown
- US 62 in Georgetown
- I-71 in Walton. The highways travel concurrently to Cincinnati, Ohio.
- US 42 / US 127 in Florence
- I-275 in Erlanger
- US 25 / US 42 / US 127 in Fort Mitchell
- US 25 / US 42 / US 127 in Covington
- Ohio
- US 22 / US 27 / US 42 / US 52 / US 127 in Cincinnati
- US 50 in Cincinnati
- US 27 / US 52 / US 127 in Cincinnati. I-75/US 27/US 52 travel concurrently through Cincinnati.
- I-74 / US 27 / US 52 / US 127 in Cincinnati
- I-275 in Sharonville
- I-675 southeast of Miamisburg
- US 35 in Dayton
- I-70 in Vandalia
- US 40 in Vandalia
- US 36 in Piqua
- US 33 in Wapakoneta
- US 68 in Findlay
- US 224 in Findlay
- US 6 in Bowling Green
- I-475 / US 23 in Perrysburg. I-75/US 23 travels concurrently through Perrysburg.
- US 20 / US 23 in Perrysburg
- I-80 / I-90 in Rossford
- US 24 in Toledo
- I-475 in Toledo
- I-280 in Toledo
- Michigan
- I-275 north-northeast of Monroe
- US 24 in Taylor
- I-96 in Detroit
- I-375 in Detroit
- I-94 in Detroit
- I-696 on the Ferndale–Hazel Park–Royal Oak–Madison Heights city line
- US 24 west-northwest of Clarkston
- I-475 west of Grand Blanc
- US 23 south-southwest of Flint. The highways travel concurrently to southwest of Standish.
- I-69 in Flint
- I-475 west of Beecher
- I-675 east of Saginaw
- I-675 north-northwest of Zilwaukee
- US 10 west of Bay City
- US 127 south of Grayling
- US 31 north-northeast of Carp Lake
- US 23 in Mackinaw City
- US 2 in St. Ignace
- Sault Ste. Marie International Bridge at the Canada–United States border in Sault Ste. Marie
Auxiliary routes
- Tampa–St. Petersburg, Florida: I-175 (not directly connected), I-275, I-375 (not directly connected)
- Macon, Georgia: I-475
- Atlanta, Georgia: I-675
- Suburban spur to Canton, Georgia: I-575 in the Atlanta area
- 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
- Saginaw, Michigan: I-675
References
- ^ a b DeSimone, Tony (October 31, 2002). "Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002". Route Log and Finder List. Federal Highway Administration. Retrieved October 2, 2007.
- ^ 7 of the Longest U.S. Interstates That Are Worth the Road Trip, Popular Mechanics, July 19, 2022
- ^ Staff (October 28, 1992). "Safety Recommendation in reply to H-92-92" (PDF). National Transportation Safety Board. Archived (PDF) from the original on October 9, 2022. Retrieved December 28, 2008.
- ^ Keeter, Brian (October 25, 2004). "Nation's Top Highway Official Dedicates Key Dayton, Ohio, Interstate Interchange to State's Military Personnel" (Press release). Federal Highway Administration. Retrieved March 26, 2011.
- ^ "West Coast Turnpike Study Ordered By Kirk". St. Petersburg Times. April 20, 1967. p. 1B.
- ^ "I-75 Extension Should Kill Toll Road - Cramer". Daytona Beach Morning Journal. August 16, 1968. p. 16.
- OCLC 30098364. Retrieved July 10, 2018 – via Newspapers.com.
- ^ "Dunn Opens 96 Interstate Miles". The Tennessean. Nashville. December 21, 1974. p. 32. Retrieved April 18, 2018 – via Newspapers.com.
- Gross Domestic Product deflatorfigures follow the Measuring Worth series.
- ^ Ayres, B. Drummond (December 22, 1977). "I-75 Link Opens First Full Interstate Route". The New York Times. p. 14. Retrieved December 4, 2021.
- ^ Staff. "Previous Interstate Facts of the Day". Celebrating the Eisenhower Interstate Highway System. Federal Highway Administration. Retrieved May 11, 2010.
- ISBN 978-0-528-00771-2.
- ISBN 9780886408473.
- Transportation Statistics Office. "GIS Data / Map Directory". Florida Department of Transportation. Archived from the original on February 6, 2007.
- Pavement Management Office (February 2, 2007). "Pavement Management Reports". Florida Department of Transportation. Archived from the original on February 3, 2007.
- Office of Transportation Data (2003). Interstate Mileage Report (438 Report) (PDF) (Report). Georgia Department of Transportation. Archived from the original (PDF) on February 18, 2006.
External links
- Geographic data related to Interstate 75 at OpenStreetMap
- Interstate 75 at Michigan Highways
- Interstate 75 on Cincinnati-Transit.net