I-80 highlighted in red
|Maintained by OTIC and ODOT|
|Length||237.48 mi  (382.19 km)|
|West end||I-80 / I-90 / Indiana Toll Road at Indiana state line|
|East end||I-80 at Pennsylvania state line|
|Counties||Williams, Fulton, Lucas, Wood, Ottawa, Sandusky, Erie, Lorain, Cuyahoga, Summit, Portage, Trumbull, Mahoning|
Interstate 80 (I-80) in the U.S. state of Ohio runs across the northern part of the state. Most of the route is part of the Ohio Turnpike; only an 18.78-mile (30.22 km) stretch is not part of the toll road. That stretch of road is the feeder route to the Keystone Shortway, a shortcut through northern Pennsylvania that provides access to New York City.
In Ohio, I-80 enters with I-90 from the Indiana Toll Road and immediately becomes the "James W. Shocknessy Ohio Turnpike", more commonly referred to as simply the Ohio Turnpike. The two Interstates cross rural northwest Ohio and run just south of the metropolitan area of Toledo. In Rossford, Ohio the turnpike intersects with I-75 in an area known as the Crossroads of America. This intersection is one of the largest intersections of three Interstate Highways in the United States.
In Elyria Township, just west of Cleveland, I-90 splits from I-80 (leaving the turnpike and running northeast as a freeway). I-80 runs east-southeast through the southern suburbs of Cleveland and retains the Ohio Turnpike designation. Just northwest of Youngstown, the Ohio Turnpike continues southeast onto I-76, while I-80 exits the turnpike and runs east to the north of Youngstown, entering Pennsylvania south of Sharon, Pennsylvania.
Interstate 80 was constructed as part of the Ohio Turnpike (with the exception of modern I-76 and I-480), the origins of which predate the establishment of the Interstate Highway System in 1956. The Ohio state legislature created the Ohio Turnpike Commission in 1949, which was the first step in designing and constructing the east-west freeway. Construction began on October 27, 1952, and the freeway was completed on October 1, 1955 (a total of 38 months). 
Although I-80 presently uses the Ohio Turnpike across most of the state, it was once planned to split between Norwalk and Edinburg, with Interstate 80N passing through Cleveland and Interstate 80S passing through Akron.
|County||Location  ||mi  ||km||Old exit||New exit ||Destinations||Notes|
|Williams||Northwest Township||0.0||0.0||I-80 / I-90 / Indiana Toll Road west – Chicago||Continuation into Indiana; western end of Ohio Tpk. concurrency; western terminus of Ohio Tpk.|
|2.0||3.2||—||—||SR 49||Diamond interchange with no ramp tolls, opened December 29, 1992 |
|2.7||4.3||Westgate Toll Barrier|
|Holiday City||13.5||21.7||2||13||SR 15 – Bryan, Montpelier||Old exit numbers followed Ohio Tpk.|
|Brady Township||20.8||33.5||Indian Meadow Service Plaza (westbound)|
Tiffin River Service Plaza (eastbound)
|Fulton||Franklin Township||25.5||41.0||2A||25||SR 66 – Archbold, Fayette||Opened November 13, 1998 |
|Dover Township||34.9||56.2||3||34||SR 108 – Wauseon|
|Pike Township||39.8||64.1||3B||39||SR 109 – Delta, Lyons||Opened December 20, 1996 |
|Lucas||Monclova Township||49.0||78.9||Oak Openings Service Plaza (westbound)|
Fallen Timbers Service Plaza (eastbound)
|52.6||84.7||3A||52||SR 2 – Swanton, Toledo Airport||Opened November 21, 1991 |
|Maumee||59.5||95.8||4||59||US 20 to I-475 / US 23 – Maumee, Toledo, Ann Arbor|
|Wood||Rossford||64.9||104.4||4A||64||I-75 – Toledo, Dayton||Opened December 4, 1991; I-75 exit 195 |
|Lake Township||71.7||115.4||5||71||I-280 north / SR 420 south – Toledo, Detroit, Stony Ridge||I-280 exit 1A|
|Ottawa||Harris Township||76.9||123.8||Blue Heron Service Plaza (westbound)|
Wyandot Service Plaza (eastbound)
|81.8||131.6||5A||81||SR 51 – Elmore, Woodville, Gibsonburg||Opened February 6, 1997 |
|Sandusky||Sandusky Township||91.6||147.4||6||91||SR 53 – Fremont, Port Clinton|
|Riley Township||100.0||160.9||Erie Islands Service Plaza (westbound)|
Commodore Perry Service Plaza (eastbound)
|Erie||Groton Township||110.2||177.3||6A||110||SR 4 – Sandusky, Bucyrus||Opened December 15, 1994 |
|Milan Township||118.5||190.7||7||118||US 250 – Sandusky, Norwalk|
|Lorain||Brownhelm Township||135.9||218.7||7A||135||To SR 2 / Baumhart Road – Vermilion||Opened December 13, 1995  SR 2 not signed on eastbound side|
|Amherst Township||139.5||224.5||Middle Ridge Service Plaza (westbound)|
Vermillion Valley Service Plaza (eastbound)
|140.6||226.3||7B||140||SR 58 – Amherst, Oberlin||Opened November 30, 2004 |
|Elyria Township||142.8||229.8||8A||142||I-90 east / SR 2 east – Cleveland||Eastbound exit and westbound entrance; eastern end of the I-90 concurrency|
|Elyria||145.5||234.2||8||145||SR 57 – Lorain, Elyria|
|North Ridgeville||151.8||244.3||9A||151||I-480 east – North Ridgeville, Cleveland||Eastbound exit and westbound entrance|
|152.2||244.9||9||152||To SR 10 – North Ridgeville, North Olmsted, Fairview Park, Cleveland|
|Cuyahoga||Strongsville||161.8||260.4||10||161||I-71 / US 42 – Strongsville, Columbus, Cleveland||I-71 exit 233|
|Broadview Heights||170.1||273.7||Great Lakes Service Plaza (westbound)|
Towpath Service Plaza (eastbound)
|Summit||Richfield||173.2||278.7||11||173||I-77 / SR 21 – Akron, Cleveland||Direct access to I-77 opened December 3, 2001 |
|Boston Heights||180.3||290.2||12||180||SR 8 – Akron|
|Portage||Streetsboro||187.2||301.3||13||187||I-480 west / SR 14 – Streetsboro|
|Shalersville Township||193.9||312.1||13A||193||SR 44 – Ravenna||Opened December 1, 1994 |
|Freedom Township||197.0||317.0||Portage Service Plaza (westbound)|
Brady's Leap Service Plaza (eastbound)
|Trumbull||Braceville Township||209.2||336.7||14||209||SR 5 – Warren|
|Lordstown||215.0||346.0||14A||215||Ellsworth–Bailey Road – Lordstown West||Eastbound exit and westbound entrance; opened June 1993 |
|216.4||348.3||14B||216||Hallock–Young Road – Lordstown East||Westbound exit and eastbound entrance|
|Mahoning||Jackson Township||219.47||353.20||—||Ohio Turnpike east / I-76 / Pennsylvania Turnpike – Akron, Pittsburgh||Left exits; eastern end of Ohio Tpk. concurrency; Ohio Tpk. exit 218; Penna. Tpk. not signed eastbound|
|—||CR 18 (Mahoning Avenue)||Eastbound exit only|
|Austintown Township||223.01||358.90||223||SR 46 – Niles, Canfield|
|223.91||360.35||224A||SR 11 south – Canfield||Western end of SR 11 concurrency; signed as exit 224 westbound|
|224.25||360.90||224B||I-680 south – Youngstown||Northern terminus of I-680; eastbound exit and westbound entrance only|
|Trumbull||Weathersfield Township||225.94||363.62||226||Salt Springs Road – McDonald|
|Girard||227.15||365.56||227||US 422 – Girard|
|Liberty Township||228.32||367.45||228||SR 11 north – Warren, Ashtabula||Eastern end of SR 11 concurrency; signed as exit 228B westbound|
|228.48||367.70||228A||SR 711 south – Youngstown||Northern terminus of SR 711; westbound exit and eastbound entrance only|
|229||SR 193 (Belmont Avenue) / East Liberty Street|
|Hubbard Township||234.43||377.28||234||US 62 / SR 7 – Hubbard, Sharon, PA|
|237.28||381.87||I-80 east – New York||Continuation into Pennsylvania|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
This section is in a list format that may be better presented using prose. (April 2017)
|Interstate 280||Toledo||Spur||Connects the Ohio Turnpike to Interstate 75|
|Interstate 480||Cleveland||Alternate||Connects the Ohio Turnpike to Interstate 271 and Cleveland|
|Interstate 480N||Cleveland||Spur||Connects Interstate 480 to Interstate 271 north|
|Interstate 680||Youngstown||Spur||Connects Interstate 80 to the Ohio Turnpike ( I-76)|
- Demolished in 2011; no plans to rebuild 
- 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. Federal Highway Administration. Retrieved September 11, 2016.
- "Interstate 80". Interstate Guide. Retrieved October 4, 2014.[ self-published source]
- Ohio Department of Transportation (2007). Ohio Official Transportation Map (Map). Columbus: Ohio Department of Transportation.
- DeLorme (2007). Street Atlas USA (Map). DeLorme.
- "Division of Planning - Office of Technical Services - Destape files". ODOT. July 16, 2013. Retrieved March 30, 2014 — Mahoning County, Trumbull County
- Ohio Turnpike Commission (n.d.). "Interchanges". Ohio Turnpike Commission. Archived from the original on August 17, 2011. Retrieved August 7, 2011; Ohio Turnpike Commission & Travel Boards (2012). Ohio Turnpike Map & Lodging Guide (Map). Berea: Ohio Turnpike Commission.
- Lewis, Herb (December 30, 1992). "Turnpike Exchange near Edon Is Officially Opened". The Bryan Times. Retrieved August 26, 2012.
- Patch, David (November 10, 1998). "Archbold Turnpike Exit to Open". The Blade. Toledo, OH. Retrieved June 18, 2008.
- "Fulton County Turnpike Gate To Open Friday". The Blade. Toledo, OH. December 17, 1996. Retrieved June 16, 2008.
- Ohio Turnpike Commission (n.d.). "Service Plazas". Ohio Turnpike Commission. Archived from the original on October 6, 2012. Retrieved October 20, 2012.
- Harvey, Hank (November 22, 1991). "Interchange Opens to Jobs, Growth". The Blade. Toledo, OH. Retrieved April 2, 2013.
- Harvey, Hank (December 5, 1991). "Perrysburg I-75 Link to Turnpike Opens". The Blade. Toledo, OH. Retrieved April 2, 2013.
- Patch, David (February 7, 1997). "Turnpike's Gate 5A Opens, Widens Elmore Area Access". The Blade. Toledo, OH. Retrieved June 16, 2008.
- McEaneney, Dennis (December 2, 1994). "Gate 13A Joins Pike". Akron Beacon Journal. Retrieved June 16, 2008.
- Kavanaugh, Molly (December 14, 1995). "New Turnpike Interchange Opens at Baumhart Road". The Plain Dealer. Cleveland. Retrieved June 16, 2008.
- "Turnpike Ramp at SR 58 To Open Today After 11 Years". The Morning Journal. Lorain, OH. November 30, 2004. Retrieved June 16, 2008.
- "Ohio Turnpike, I-77 Interchange Opens to Traffic". Cleveland: WEWS-TV. December 3, 2001. Archived from the original on March 4, 2009. Retrieved June 16, 2008.
- Farkas, Karen (June 21, 2009). "Bari Lambert's Job as a Toll Collector on the Ohio Turnpike's Lordstown Plant Exit Has Turned Very Quiet". The Plain Dealer. Cleveland. Retrieved June 22, 2009.