List of Interstate Highways in Ohio

Last updated

Interstate Highways of Ohio
I-71.svg
I-275.svg
Business Loop 75.svg
Highway markers for I-71, I-275, and BL-75
Ohio Interstates.svg
A map of all the Interstate Highways in Ohio
System information
Length1,572.35 mi [1]  (2,530.45 km)
FormedJune 29, 1956 [2]
Highway names
Interstates Interstate nn (I-nn)
Business Loops:Business Loop Interstate nn (BL I-nn)
System links
  • Ohio State Highway System

There are 21 Interstate Highways in Ohio, including both primary and auxiliary routes. With the exception of the Ohio Turnpike (which carries portions of Interstate 76 (I-76), I-80, and I-90), all Interstate Highways in the state are owned and maintained by Ohio Department of Transportation (ODOT); however, they were built with money from the Federal Government. [3] The total road mileage of the 21 Interstates is 1,572.35 miles (2,530.45 km). Ohio has more route miles than this, most of which comes from I-80 running concurrently with I-90 for 142.80 miles (229.81 km) and I-70 and I-71 running concurrently through Columbus. 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]

Contents

As of 2019, out of all the states, Ohio has the fifth-largest Interstate Highway System. [4] 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 invested more money on its Interstate Highways than New York or California. Ohio had completed the construction of 522 miles (840 km) of pavement by 1960, 684 miles (1,101 km) by 1962, and 1,000 miles (1,600 km) by 1970. 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 Highways. [2]

Primary Interstates

NumberLength (mi) [5] Length (km)Southern or western terminusNorthern or eastern terminusFormedRemovedNotes
I-70.svg I-70 225.60363.07 I-70 at the Indiana state line I-70 at the West Virginia state line01960-01-011960current
I-71.svg I-71 248.15399.36 I-71/I-75 at the Kentucky state line I-90 at Cleveland 01960-01-011960current
I-73.svg I-73 I-73 at West Virginia state line I-73 at Michigan state lineproposedProposed 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. [6]
I-74.svg I-74 19.4731.33 I-74 at the Indiana state line I-75 at Cincinnati 01962-01-011962current
I-75.svg I-75 211.55340.46 I-71/I-75 at the Kentucky state line I-75 at the Michigan state line01960-01-011960current
I-76.svg I-76 81.65131.40 I-71 near Lodi I-76 at the Pennsylvania state line01972-01-011972current
I-77.svg I-77 163.03262.37 I-77 at the West Virginia state line I-90 at Cleveland 01964-01-011964current
I-80.svg I-80 237.48382.19 I-80/I-90 at the Indiana state line I-80 at the Pennsylvania state line01960-01-011960current218 miles (351 km) of I-80 is part of the Ohio Turnpike
I-80N.svg I-80N I-90/I-80 in Lorain County I-80S/SR 5 in Braceville Township 01960-01-01196001962-01-011962Redesignated as I-80
I-80S.svg I-80S 81.65131.40 I-71 near Lodi I-80S at the Pennsylvania state line01960-01-01196001971-01-011971Redesignated as I-76
I-90.svg I-90 244.75393.89 I-80/I-90 at the Indiana state line I-90 at the Pennsylvania state line01960-01-011960current142 miles (229 km) of I-90 is part of the Ohio Turnpike
  •       Former
  •       Proposed and unbuilt

Auxiliary Interstates

NumberLength (mi) [5] Length (km)Southern or western terminusNorthern or eastern terminusFormedRemovedNotes
I-270.svg I-270 54.9788.47 I-71 at Grove City US 23 at Columbus 01964-01-011964currentBeltway around Columbus
I-271.svg I-271 40.2264.73 I-71 at Medina I-90 at Willoughby Hills 01964-01-011964currentI-271 is east of Cleveland
I-275.svg I-275 56.04190.189I-275 at the Indiana state lineI-275 at the Kentucky state line01962-01-011962currentBeltway around Cincinnati
I-277.svg I-277 4.146.66 I-76 at Akron I-77/US 224 at Akron 01970-01-011970current
I-280.svg I-280 12.4119.97 I-80/I-90 at Lake Township I-75 at Toledo 01959-01-011959currentFirst completed interstate in Ohio
I-290.svg I-290 I-90 in Cleveland I-90/I-271 in Willoughby Hills 01964-01-01196401968-01-011968Signed along I-271 concurrency
I-290.svg I-290 I-90 in Cleveland I-271 in Beachwood 01971-01-01197101973-01-011973Completed segment never opened (redesignated as I-490)
I-380.svg I-380 I-76/I-77 in Akron I-271/SR 8 in Macedonia proposedPlanned redesignation of the SR 8 freeway
I-470.svg I-470 6.6910.77 I-70 at Blaine I-470 at the West Virginia state line01976-01-011976current
I-471.svg I-471 0.731.17I-471 at the Kentucky state line I-71 at Cincinnati 01981-01-011981current
I-475.svg I-475 20.3732.78 I-75 at Perrysburg I-75 at Toledo 01964-01-011964currentHalf beltway around Toledo
I-480.svg I-480 41.7767.22 I-80 at North Ridgeville I-80 at Streetsboro 01971-01-011971current
I-480N.svg I-480N 1.993.20 I-480 at Maple Heights US-422 at Warrensville Heights 01974-01-011974currentspur freeway connecting I-480 to I-271 and US 422
I-490.svg I-490 2.433.91 I-71/I-90 at Cleveland I-77 at Cleveland01990-01-011990currentWill extend into SR 10
I-670.svg I-670 10.4316.79 I-70 at Columbus I-270 at Gahanna 02003-01-012003current
I-675.svg I-675 26.5342.70 I-75 near Miamisburg I-70 near Fairborn 01987-01-011987current
I-680.svg I-680 16.4326.44 I-76 at North Lima I-80 near Mineral Ridge 01964-01-011964current
  •       Former
  •       Proposed and unbuilt

Business routes

NumberLength (mi)Length (km)Southern or western terminusNorthern or eastern terminusFormedRemovedNotes
Business Loop 75.svg I-75 BL 8.513.7 I-75 in Troy I-75 in Piqua Runs along a former segment of US 25
Business Loop 75.svg I-75 BL 4.57.2 I-75 in Sidney I-75 in SidneyRuns along a former segment of US 25
Business Loop 75.svg I-75 BL 4.47.1 I-75 in Findlay I-75 in FindlayMost if not all segments were a former segment of US 25.

See also

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. Archived from the original on May 6, 2008. 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. "Transportation Asset Management Plan (TAMP)".
  5. 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.
  6. 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.