List of Interstate Highways in Ohio

System information
Highway markers for I-71 and I-275
A map of all the Interstate Highways in Ohio
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
Ohio Highways Interstate U.S. State Former Scenic

There are a total of 21 Interstate Highways in Ohio, including both primary and auxiliary routes. All of the Interstate Highwayss 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
I0070 !I-70	225.60	363.07	I-70 at the Indiana state line	I-70 at the West Virginia state line	1960	current
I0071 !I-71	248.15	399.36	I-71/I-75 at the Kentucky state line	I-90 at Cleveland	1960	current
I0074 !I-74	19.47	31.33	I-74 at the Indiana state line	I-75 at Cincinnati	1962	current	Will extend into West Virginia
I0075 !I-75	211.55	340.46	I-71/I-75 at the Kentucky state line	I-75 at the Michigan state line	1960	current
I0076 !I-76	81.65	131.40	I-71 near Lodi	I-76 at the Pennsylvania state line	1972	current
I0077 !I-77	163.03	262.37	I-77 at the West Virginia state line	I-90 at Cleveland	1964	current
I0080 !I-80	237.48	382.19	I-80/I-90 at the Indiana state line	I-80 at the Pennsylvania state line	1960	current	218 miles (351 km) of I-80 is part of the Ohio Turnpike
I0090 !I-90	244.75	393.89	I-80/I-90 at the Indiana state line	I-90 at the Pennsylvania state line	1960	current

I-70 at the I-71 interchange near Columbus
I-71 near West Lancaster and Octa
I-75 near the Lockland Miami and Erie Canal
I-76 in Portage County
I-80 over the Cuyahoga River

Auxiliary Interstates

Number	Length (mi)^[4]	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I0270 !I-270	54.97	88.47	I-71 at Grove City	US 23 at Columbus	1964	current	Beltway around Columbus
I0271 !I-271	46.06	74.13	I-71 at Medina	I-90 at Willoughby Hills	1964	current	I-271 is east of Cleveland
I0275 !I-275	56.041	90.189	I-275 at the Indiana state line	I-275 at the Kentucky state line	1962	current	Beltway around Cincinnati
I0277 !I-277	4.14	6.66	I-76 at Akron	I-77/US 224 at Akron	1970	current
I0280 !I-280	12.41	19.97	I-80/I-90 at Lake Township	I-75 at Toledo	1959	current	First completed interstate in Ohio
I0290 !I-290	—	—	I-90 in Cleveland	I-90/I-271 in Willoughby Hills	1964	1968	Signed along I-271 concurrency
I0290 !I-290	—	—	I-90 in Cleveland	I-271 in Beachwood	1971	1973	Completed segment never opened (redesignated as I-490)
I0470 !I-470	6.69	10.77	I-70 at Blaine	I-470 at the West Virginia state line	1976	current
I0471 !I-471	0.73	1.17	I-471 at the Kentucky state line	I-71 at Cincinnati	1981	current
I0475 !I-475	20.37	32.78	I-75 at Perrysburg	I-75 at Toledo	1964	current	Half beltway around Toledo
I0480 !I-480	41.77	67.22	I-80 at North Ridgeville	I-80 at Streetsboro	1971	current
I0490 !I-490	2.43	3.91	I-71/I-90 at Cleveland	I-77 at Cleveland	1990	current	Will extend into SR 10
I0670 !I-670	10.43	16.79	I-70 at Columbus	I-270 at Gahanna	2003	current
I0675 !I-675	26.53	42.70	I-75 near Miamisburg	I-70 near Fairborn	1987	current
I0680 !I-680	16.43	26.44	I-76 at North Lima	I-80 near Mineral Ridge	1964	current

Cloverleaf interchange between I-270 and SR-161
A picture of the I-271 bridge over the Cuyahoga River
I-275 in the Sharonville neighborhood
The I-675 double interchange southeast of Dayton

Suffixed Interstates

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I0080N !I-80N	—	—	I-90/I-80 in Lorain County	I-80S/SR 5 in Braceville Township	1960	1962	Redesignated as I-80
I0080S !I-80S	81.65	131.40	I-71 near Lodi	I-80S at the Pennsylvania state line	1960	1971	Redesginated as I-76
I0480N !I-480N	1.99	3.20	I-480 in Maple Heights	US 422 in Warrensville Heights	1974	current	Spur of I-480

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

References

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.
1 2 3 Ohio Department of Transportation (n.d.). "Ohio's Timeline". Ohio Department of Transportation. Retrieved January 20, 2011.
↑ Federal Highway Administration (November 18, 2015). "Frequently Asked Questions". Celebrating the Eisenhower Interstate Highway System. Federal Highway Administration. Retrieved June 7, 2016.
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.
↑ 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.

External links

Wikimedia Commons has media related to Interstate Highways in Ohio.

This article is issued from Wikipedia - version of the 9/15/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.