List of Interstate Highways in Ohio

Interstate Highways of Ohio
Interstate 71 markerInterstate 275 markerInterstate 75 Business marker
Highway markers for I-71, I-275, and BL-75
A map of all the Interstate Highways in Ohio
System information
Length 1,572.35 mi[1] (2,530.45 km)
Formed June 29, 1956[2]
Highway names
Interstates Interstate nn (I-nn)
Business Loops: Business Loop Interstate nn (BL I-nn)
System links

There are a total of 21 Interstate Highways in Ohio, including both primary and auxiliary routes. All of the Interstate Highways are owned and maintained by the U.S. state of Ohio through the Ohio Department of Transportation (ODOT); however, they were all built with money from the U.S. federal government.[3] The road miles of these 21 Interstates add up to a total of 1,572.35 miles (2,530.45 km). Ohio has more route miles than this, most of which comes from Interstate 80 (I-80) running concurrently with I-90 for 142.80 miles (229.81 km). The Interstate Highways in Ohio range in length from I-71, at 248.15 miles (399.36 km), all the way down to I-471, at 0.73 miles (1.17 km).[1]

As of 2006, out of all the states, Ohio has the fourth-largest Interstate Highway System. Ohio also has the fifth-largest traffic volume and the third-largest quantity of truck traffic. Ohio ranks second in the nation in terms of the number of bridges for its Interstates.[2]

History

On June 29, 1956, President Dwight D. Eisenhower signed the Federal Aid Highway Act of 1956, which called for the construction of up to 41,000 miles (66,000 km) of Interstate Highways. Of that, up to 1,500 miles (2,400 km) were to be built in Ohio. The same year, Ohio passed a law which raised the state's speed limit to 60 mph (97 km/h), and in 1957, Ohio began the construction of its Interstate Highway allotment. By 1958, Ohio had spent more money on its Interstate Highways than either New York or California. In 1960, Ohio had completed the construction of 522 miles (840 km) of pavement; in 1962, Ohio had completed the construction of 684 miles (1,101 km) of pavement; and in 1970, Ohio had completed the construction of 1,000 miles (1,600 km) of pavement. By the end of 1971, Ohio had only 167 miles (269 km) of Interstate still to build. On September 19, 2003, Ohio finally finished the originally planned Interstate Highway System.[2]

Primary Interstates

Number Length (mi)[4] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-70 225.60363.07 I-70 at the Indiana state lineI-70 at the West Virginia state line 01960-01-011960current
I-71 248.15399.36 I-71/I-75 at the Kentucky state lineI-90 at Cleveland 01960-01-011960current
I-74 19.4731.33 I-74 at the Indiana state lineI-75 at Cincinnati 01962-01-011962current Will extend into West Virginia
I-75 211.55340.46 I-71/I-75 at the Kentucky state lineI-75 at the Michigan state line 01960-01-011960current
I-76 81.65131.40 I-71 near LodiI-76 at the Pennsylvania state line 01972-01-011972current
I-77 163.03262.37 I-77 at the West Virginia state lineI-90 at Cleveland 01964-01-011964current
I-80 237.48382.19 I-80/I-90 at the Indiana state lineI-80 at the Pennsylvania state line 01960-01-011960current 218 miles (351 km) of I-80 is part of the Ohio Turnpike
I-90 244.75393.89 I-80/I-90 at the Indiana state lineI-90 at the Pennsylvania state line 01960-01-011960current

Auxiliary Interstates

Number Length (mi)[4] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-270 54.9788.47 I-71 at Grove CityUS 23 at Columbus 01964-01-011964current Beltway around Columbus
I-271 46.0674.13 I-71 at MedinaI-90 at Willoughby Hills 01964-01-011964current I-271 is east of Cleveland
I-275 56.04190.189 I-275 at the Indiana state lineI-275 at the Kentucky state line 01962-01-011962current Beltway around Cincinnati
I-277 4.146.66 I-76 at AkronI-77/US 224 at Akron 01970-01-011970current
I-280 12.4119.97 I-80/I-90 at Lake TownshipI-75 at Toledo 01959-01-011959current First completed interstate in Ohio
I-290 —— I-90 in ClevelandI-90/I-271 in Willoughby Hills 01964-01-01196401968-01-011968 Signed along I-271 concurrency
I-290 —— I-90 in ClevelandI-271 in Beachwood 01971-01-01197101973-01-011973 Completed segment never opened (redesignated as I-490)
I-470 6.6910.77 I-70 at BlaineI-470 at the West Virginia state line 01976-01-011976current
I-471 0.731.17 I-471 at the Kentucky state lineI-71 at Cincinnati 01981-01-011981current
I-475 20.3732.78 I-75 at PerrysburgI-75 at Toledo 01964-01-011964current Half beltway around Toledo
I-480 41.7767.22 I-80 at North RidgevilleI-80 at Streetsboro 01971-01-011971current
I-490 2.433.91 I-71/I-90 at ClevelandI-77 at Cleveland 01990-01-011990current Will extend into SR 10
I-670 10.4316.79 I-70 at ColumbusI-270 at Gahanna 02003-01-012003current
I-675 26.5342.70 I-75 near MiamisburgI-70 near Fairborn 01987-01-011987current
I-680 16.4326.44 I-76 at North LimaI-80 near Mineral Ridge 01964-01-011964current
  •       Former

Suffixed Interstates

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-80N —— I-90/I-80 in Lorain CountyI-80S/SR 5 in Braceville Township 01960-01-01196001962-01-011962 Redesignated as I-80
I-80S 81.65131.40 I-71 near LodiI-80S at the Pennsylvania state line 01960-01-01196001971-01-011971 Redesignated as I-76
I-480N 1.993.20 I-480 in Maple HeightsUS 422 in Warrensville Heights 01974-01-011974current Spur of I-480
  •       Former

Proposed Interstates

Number Southern or western terminus Northern or eastern terminus Notes
I-73 I-73 at West Virginia state line I-73 at Michigan state line Proposed highway that would enter from West Virginia along U.S. Route 52 to Portsmouth, then use US 23 and other highways to Toledo before crossing into Michigan.[5]
I-380 I-76/I-77 in Akron I-271/SR 8 in Macedonia Planned redesignation of the SR 8 freeway

Business routes

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-75 Bus. —— —— ——
I-75 Bus. —— —— ——
I-75 Bus. —— —— ——

See also

  • Ohio portal
  • U.S. Roads portal

References

  1. 1 2 Adderly, Kevin (January 27, 2016). "Table 3: Interstate Routes in Each of the 50 States, District of Columbia, and Puerto Rico". Route Log and Finder List. Federal Highway Administration. Retrieved June 7, 2016.
  2. 1 2 3 Ohio Department of Transportation (n.d.). "Ohio's Timeline". Ohio Department of Transportation. Retrieved January 20, 2011.
  3. ↑ Federal Highway Administration (November 18, 2015). "Frequently Asked Questions". Celebrating the Eisenhower Interstate Highway System. Federal Highway Administration. Retrieved June 7, 2016.
  4. 1 2 Adderly, Kevin (January 27, 2016). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2015". Route Log and Finder List. Federan Highway Administration. Retrieved June 7, 2016.
  5. ↑ Staff (December 18, 1991). "Intermodal Surface Transportation Efficiency Act of 1991". U.S. Congress. Retrieved September 28, 2010. §1105(c)(5) I-73/74 North–South Corridor from Charleston, South Carolina, through Winston-Salem, North Carolina, to Portsmouth, Ohio, to Cincinnati, Ohio, and Detroit, Michigan.
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