I-75 highlighted in red
|Maintained by ODOT|
|Length||211.55 mi  (340.46 km)|
|South end||I-71 / I-75 at Kentucky state line|
|North end||I-75 at Michigan state line|
|Counties||Hamilton, Butler, Warren, Montgomery, Miami, Shelby, Auglaize, Allen, Hancock, Wood, Lucas|
Interstate 75 (I-75) runs from Cincinnati to Toledo by way of Dayton in the U.S. state of Ohio. The highway enters the state running concurrently with I-71 from Kentucky on the Brent Spence Bridge over the Ohio River and into the Bluegrass region. I-75 continues north into the Miami Valley and then passes through the Great Black Swamp before crossing into Michigan.
In Cincinnati, approximately 17 miles (27 km) of the highway will be totally reconfigured by three separate ODOT projects happening simultaneously. The Brent Spence Bridge Corridor project will replace the Brent Spence Bridge and continue north to the Western Hills Viaduct. The Mill Creek Expressway project will modernize the Mill Creek Expressway segment of the highway, from the Western Hills Viaduct to the Ronald Reagan Cross County Highway interchange. The Thru the Valley project will continue from the Reagan Highway north to Interstate 275. These projects will improve safety by eliminating all left-hand exit ramps and increasing vehicular capacity.
In Dayton, Interstate 75 is currently in the process of total reconfiguration with several projects occurring simultaneously. The intersection of I-75 and I-70 was reconfigured to handle an increased traffic load at the intersection.  I-75 through downtown Dayton at the intersections of Ohio State Route 4, US 35, and between are currently under construction for widening and modernization. 
Between I-475 in Perrysburg and State Route 15 in Findlay, Interstate 75 is only two lanes wide in each direction, and extremely congested, due to carrying traffic headed towards Dayton via I-75, and Columbus via State Route 15 and US 23. As of July 2014, initial stages of a widening project have begun in order to widen this stretch of road to three lanes in each direction, with an estimated completion date of November 2016.  A few miles later, Interstate 75 intersects with I-80/ I-90 the Ohio Turnpike. After the interchange, Interstate 75 continues north into Downtown Toledo. Just north of Downtown Toledo, Interstate 475 rejoins with Interstate 75. After continuing northeast, Interstate 75 intersects Interstate 280 (Ohio), which connects to I-80/ I-90 the Ohio Turnpike. Following this, Interstate 75 enters Michigan and follows the shore of Lake Erie.
I-75 in Ohio was built through the 1960s, supplanting US 25, though much of the freeway was built for US 25. By the time I-75 was finished, US 25 ran concurrently with I-75 for all but the northernmost section. By 1974, the US 25 designation was deemed unnecessary, and removed from Ohio and Michigan. The northernmost section of US 25 in Ohio became Ohio State Route 25. 
In 2005, ODOT considered reconfiguring I-75's existing interchange in Findlay with US 224 and SR 15 west as a diverging diamond interchange to improve traffic flow. Had it been constructed, it would have been the first such interchange in the United States.  By 2006, ODOT had reconsidered, instead adding lanes to the existing overpass.  
Traffic congestion in the Cincinnati–Dayton corridor has led to proposals for a regional I-75 bypass to divert through traffic. 
On January 19, 2015, an overpass north of Hopple Street near Cincinnati collapsed onto the highway below at approximately 10:30 pm.  The span that failed was the segment of the former northbound ramp to Hopple Street that passed over the southbound lanes of I-75.  The overpass had been closed and was in the process of being removed after a replacement ramp was opened on December 26, 2014. The interstate underneath was open at the time of the failure. One construction worker on the overpass was killed during the collapse by a falling steel beam.  A truck driver was injured when his semi hit the fallen overpass immediately after the collapse. One other worker was in a backhoe on the bridge but was uninjured. 
There are plans to convert the existing interchange with Union Centre Boulevard in West Chester Township, Butler County to a diverging diamond interchange (DDI). The project is scheduled to begin in 2019 and be completed a year-and-a-half later at a projected cost of $13 million.   There are also plans to convert the existing interchange with SR 725 in Miamisburg to a DDI. The project will not be built until 2023 and its projected cost is $4.1 million, entirely funded by the state. 
|County||Location||mi ||km||Old exit  ||New exit||Destinations||Notes|
|Ohio River||0.00||0.00||I-75 south / I-71 – Lexington, Louisville||Continuation into Kentucky|
|Brent Spence Bridge; Kentucky–Ohio state line|
|Hamilton||Cincinnati||0.22||0.35||1||1B||I-71 north / US 50 east ( Fort Washington Way) to I-471 south / US 52 east / Second Street – Columbus, Downtown Cincinnati, Riverfront||Northern end of I-71 overlap; was exit 1A before the Fort Washington Way reconstruction |
|0.50||0.80||2||1C||Fifth Street, Central Avenue ( US 22 / US 27 / US 42 / US 52 / US 127 / SR 3) – Downtown Cincinnati||No southbound entrance; was exit 1E before the Fort Washington Way reconstruction|
|0.63||1.01||3||1D||US 50 west (River Road, Sixth Street Expressway, SR 264 west) / Linn Street||Northbound exit and southbound entrance; was exit 1G before the Fort Washington Way reconstruction|
|0.71||1.14||4||1E||Seventh Street||No northbound exit; was exit 1F before the Fort Washington Way reconstruction|
|1.24||2.00||5||1F||To US 50 west / Freeman Avenue||Southbound exit and northbound entrance; was exit 1G before the Fort Washington Way reconstruction|
|1.44||2.32||6||1G||Ezzard Charles Drive||No northbound exit, but ramp can be accessed by traffic entering at exits 1B, 1C, and 1E; was exit 1H before the Fort Washington Way reconstruction; formerly signed as Lincoln Park Drive|
|1.72||2.77||7||2A||Western Avenue, Liberty Street||Southbound exit and northbound entrance|
|2.51||4.04||8||2B||Harrison Avenue (Western Hills Viaduct)|
|3.50||5.63||9||3||US 27 south / US 52 east / US 127 / Hopple Street||Southern end of US 27/US 52 overlap|
|4.23||6.81||10||4||I-74 west / US 27 north / US 52 west – Indianapolis||I-74 exit 20; northern end of US 27/US 52 overlap.|
|6.46||10.40||11||6||Mitchell Avenue – St. Bernard|
|7.81||12.57||13||7||SR 562 east to I-71 – Norwood|
|8.57||13.79||14||8||Towne Street – Elmwood Place||Northbound exit and entrance|
|9.45||15.21||15||9||SR 4 (Paddock Road) to SR 561 (Seymour Avenue)|
|10.31||16.59||16||10A||SR 126 ( Ronald Reagan Cross County Highway)||Southbound exit to SR 126 and northbound entrance from westbound SR 126 via exit 10|
|Arlington Heights||10.89||17.53||17||10B||Galbraith Road||Signed as exit 10 southbound|
|Lockland||11.84||19.05||18||12||Lockland, Reading||No northbound entrance; southbound right-in/right-out to Cooper Avenue and northbound exit to Davis Street|
|Evendale||12.92||20.79||19||13||Shepherd Lane, Neumann Way – Lincoln Heights||Southbound exit to Neumann Way via Exit 14; Neumann Way serves GE Aviation|
|14.26||22.95||20||14||Glendale-Milford Road – Evendale, Woodlawn|
|Sharonville||15.39||24.77||21||15||Sharon Road – Glendale|
|16.79||27.02||22||16||I-275 to I-71 / I-74 – Columbus, Indianapolis||Signed as exits 16A (east) and 16B (west) southbound; I-275 exit 43|
|Butler||West Chester Township||19.24||30.96||19||Union Centre Boulevard – Fairfield|
|21.23||34.17||23||21||Cincinnati–Dayton Road||Former US 25|
|22.82||36.73||24||22||Tylersville Road – Mason|
|Liberty Township||24.19||38.93||24||SR 129 west / Liberty Way – Hamilton||SR 129 exit 25|
|25||29||SR 63 – Monroe, Lebanon, Hamilton|
|Middletown||32.82||52.82||26||32||SR 122 – Middletown|
|Franklin||36.89||59.37||27||36||SR 123 – Franklin, Lebanon|
|Franklin– Springboro line||38.74||62.35||28||38||SR 73 – Springboro, Franklin|
|Montgomery||Miamisburg– Springboro line||41.56||66.88||41||Austin Boulevard – Springboro, Miamisburg, Washington Township||Opened in July 2010 |
|29||43||I-675 north – Columbus||Directional T interchange.|
|Miamisburg||44.66||71.87||30||44||SR 725 – Centerville, Miamisburg|
|West Carrollton||47.31||76.14||31||47||East Dixie Drive – West Carrollton, Moraine||Converted to full access interchange in 2012 |
|50.49||81.26||50B||SR 741 south (Springboro Pike)||Southbound exit and northbound entrance|
|Dayton||51.36||82.66||Bridge over the Great Miami River|
|51.70||83.20||33||51||Edwin C. Moses Boulevard, Nicholas Road|
|34||52A||Albany Street, Stewart Street||Former southbound exit and northbound entrance; closed in spring 2010 as part of I-75 Downtown Modernization |
|52.69||84.80||35||52||US 35 / SR 4 – Xenia, Eaton||Southern end of SR 4 concurrency; ramps to westbound US 35 and from eastbound US 35 include entrances and exits for Germantown Street; was exit 52B before Albany Street/Stewart Street exit was removed|
|53.18||85.58||Bridge over the Great Miami River|
|53.41||85.96||36||53||Second Street, Salem Avenue, First Street||Formerly signed as 53A (Third Street) and 53B (Salem Avenue, First Street) before interchange rebuild in 2016; exit 53 was also formerly exit 37; no southbound access to First Street|
|53.8||86.6||Bridge over the Great Miami River|
|54.22||87.26||38||54A||Grand Avenue, Riverside Drive, Main Street||Closed; southbound originally had two ramps to Riverside Drive which were later removed; access consolidated with newly built Main Street exit as part of I-75 Downtown Modernization |
|54.38||87.52||39||54A||SR 48 (Main Street)||Was exit 54B before Grand Avenue/Riverside Drive/Main Street exit was removed|
|54.63||87.92||Bridge over the Great Miami River|
|40||54B||SR 4 / Webster Street, Keowee Street – Springfield||Northern terminus of SR 4 concurrency; was exit 54C before Grand Avenue/Riverside Drive/Main Street exit was removed|
|41||55||Keowee Street, Leo Street||Closed; was signed northbound as exits 55A (Keowee Street south) and 55B (Keowee Street north, Leo Street); access to Keowee consolidated with Webster Street as part of I-75 Downtown Modernization |
|56.15||90.36||Bridge over the Great Miami River|
|||56.46||90.86||43||57A||Neva Drive||Former northbound exit and southbound entrance; closed with I-75 Downtown Modernization |
|||56.74||91.31||44||57||Wagner Ford Road, Siebenthaler Avenue, Neff Road||Neff Road signed southbound only; southbound exit ramp connects to Neff Road, Keats Drive, and a traffic circle which connects to Wagner Ford Road and Dixie Drive; was exit 57B before Neva Drive exit was removed|
|||59.72||96.11||59||Wyse Road, Benchwood Road||Benchwood Road becomes Wyse Road immediately east of exit|
|||60.71||97.70||46||60||Little York Road||Closed; northbound access was via Poe Avenue and southbound access via Miller Lane; replaced by exit 59|
|47||61||I-70 – Indianapolis, Columbus||Signed as exits 61A (east) and 61B (west) southbound; I-70 exit 33|
|Vandalia||63.18||101.68||48||63||US 40 – Donnelsville, Vandalia|
|Miami||Tipp City||67.96||109.37||50||68||SR 571 – Tipp City, West Milton|
|69.74||112.24||51||69||County Road 25A||Former US 25|
|52||73||SR 55 – Ludlow Falls, Troy|
|75.05||120.78||53||74||SR 41 – Troy, Covington|
|||78.50||126.33||54||78||County Road 25A||Former US 25|
|||78.62||126.53||Bridge over the Great Miami River|
|55||82||US 36 – Urbana, Piqua|
|56||83||County Road 25A – Piqua||Former US 25|
|Shelby||Sidney||90.58||145.77||57||90||Fair Road – Sidney|
|||91.96||148.00||58||92||SR 47 / I-75 Bus. – Sidney, Versailles|
|||93.83||151.00||59||93||SR 29 – Sidney, St. Marys|
|||94.73||152.45||60||94||County Road 25A Sidney||Former US 25|
|||99.77||160.56||61||99||SR 119 – Anna, Minster|
|||102.84||165.50||62||102||SR 274 – Jackson Center, New Bremen|
|||104.84||168.72||63||104||SR 219 – Botkins|
|Auglaize||||110.82||178.35||64||110||US 33 – St. Marys, Bellefontaine|
|Wapakoneta||111.26||179.06||65||111||Bellefontaine Street – Wapakoneta|
|||113.02||181.89||66||113||SR 67 – Uniopolis, Wapakoneta|
|Cridersville||118.16||190.16||67||118||National Road – Cridersville|
|Allen||Fort Shawnee||120.52||193.96||68||120||Breese Road – Fort Shawnee|
|Lima||122.63||197.35||69||122||SR 65 – Ottawa, Uniopolis, Lima|
|125.43||201.86||71||125||SR 117 / SR 309 – Lima, Kenton|
|||127.15||204.63||72||127||SR 81 – Ada, Lima|
|||134.72||216.81||74||134||Napoleon Road||Northbound exit and southbound entrance|
|Beaverdam||135.69||218.37||75||135||SR 696 to US 30 – Delphos, Upper Sandusky||Lincoln Highway|
|Bluffton||140.52||226.15||76||140||Bentley Road ( SR 103) – Bluffton|
|Hancock||142.48||229.30||77||142||SR 103 – Arlington, Bluffton|
|||145.36||233.93||78||145||SR 235 – Ada, Mount Cory|
|Findlay||156.81||252.36||79||156||US 68 south / SR 15 east / I-75 Bus. north to US 23 – Carey, Columbus, Kenton||Southern end of SR 15 overlap|
|157.90||254.12||80||157||SR 12 – Findlay, Columbus Grove|
|159.10||256.05||81||159||US 224 / SR 15 west – Findlay, Ottawa, Tiffin||Northern end of SR 15 overlap|
|||161.20||259.43||82||161||County Road 99|
|||162.73||261.89||83||Mortimer||Added c. 1968;   removed 1974  |
|||164.65||264.98||84||164||SR 613 – McComb, Fostoria|
|Wood||||167.15||269.00||85||167||SR 18 – North Baltimore, Fostoria|
|||167.81||270.06||86||168||Eagleville Road, Quarry Road||Eastbound access via Grant Road; westbound access via Insley Road|
|||171.86||276.58||87||171||SR 25 – Cygnet||Southern terminus of SR 25|
|||179.75||289.28||88||179||US 6 – Fremont, Napoleon||US 6 exit 66|
|Bowling Green||181.41||291.95||89||181||SR 64 / SR 105 – Pemberville, Bowling Green|
|Haskins||187.24||301.33||90||187||SR 582 – Luckey, Haskins|
|91||192||I-475 north / US 23 north – Maumee, Ann Arbor||Southern end of US 23 overlap; I-475 exit 1|
|Perrysburg||193.85||311.97||92||193||US 20 / US 23 south – Fremont, Perrysburg||Northern end of US 23 overlap|
|—||195||I-80 / I-90 / Ohio Turnpike / SR 795 – Perrysburg, Cleveland, Chicago||Connection to the Turnpike opened December 4, 1991;
ramps to SR 795 opened August 22, 1994;  signed as 195A (SR 795) and 195B (Ohio Turnpike), exits connected via collector/distributor lanes
|Northwood||199.02||320.29||94||198||Wales Road, Oregon Road – Northwood|
|Lucas||Toledo||199.84||321.61||95||199||SR 65 (Miami Street) – Rossford||Signed as exits 199A (north) and 199B (south) southbound|
|199.96||321.80||Michael V. DiSalle Bridge over the Maumee River (to be replaced 2019–2023) |
|200.60||322.83||96||200||Kuhlman Drive, South Avenue||Access To Toledo Zoo (Broadway Street); Kuhlman Drive signed northbound only|
|97||201A||To SR 25 south / Collingwood Avenue – Maumee||Northbound exit and southbound entrance from eastbound Collingwood Avenue; provides access from northbound I-75 to southbound SR 25 and from northbound SR 25 to southbound I-75|
|201.68||324.57||98||201B||SR 25 – Downtown Toledo, Maumee||Directional access (northbound to northbound and southbound to southbound) only; Downtown Toledo signed northbound only, Maumee signed southbound only|
|202.03||325.14||99||202A||Washington Street – Downtown Toledo||Southbound exit via Indiana Avenue and northbound entrance|
|202.49||325.88||100||202B||Collingwood Boulevard||Southbound exit and northbound entrance|
|203.33||327.23||100||203A||Bancroft Street||Northbound exit and southbound entrance via Lawrence Avenue|
|203.68||327.79||101||203B||US 24 (Detroit Avenue) to SR 51 (Monroe Street)||Exit located at Detroit Avenue|
|—||204||I-475 west to US 23 – Sylvania, Maumee, Ann Arbor||I-475 exit 20|
|102||205A||Jeep Parkway||Interchange closed from March 2015 to July 2018 for reconstruction |
|205.46||330.66||103||205B||Berdan Avenue||Former northbound exit and southbound entrance; closed October 2016 |
|205.55||330.80||Viaduct over the Ottawa River|
|206.00||331.52||104||206||To US 24 / Phillips Avenue|
|206.93||333.02||105||207||Stickney Avenue, Lagrange Street|
|106||208||I-280 south to I-80 east / I-90 east / Ohio Turnpike east – Cleveland|
|209.52||337.19||107||209||Ottawa River Road||Northbound exit and southbound entrance|
|209.84||337.70||Bridge over the Ottawa River|
|210.52||338.80||108||210||SR 184 (Alexis Road)|
|211.55||340.46||I-75 north – Detroit||Continuation into Michigan|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
This article is in a list format that may be better presented using prose. (November 2017)
|Interstate 275||Cincinnati||Loop||Extends into Indiana and Kentucky|
|Interstate 475||Toledo||Bypass||Intersects the Ohio Turnpike|
|Interstate 675||Dayton||Bypass||Connects to I-70|
- Ohio Department of Transportation. "Ohio Interstate History Timeline". Ohio Department of Transportation. Archived from the original on May 6, 2008.
- Office of Technical Services (January 1, 2007). "Straight Line Diagrams". Ohio Department of Transportation. Archived from the original on February 19, 2003.
- "Work, Closures Continue On I-75 Near West Chester". Cincinnati: WLWT-TV. March 24, 2008.
- "I-70 / 75 Interchange Phase III". Ohio Department of Transportation. Archived from the original on March 3, 2016. Retrieved 7 January 2019.
- "Modernization of I-75 Through Downtown Dayton". Ohio Department of Transportation. Archived from the original on November 6, 2018. Retrieved 7 January 2019.
- Ohio Department of Transportation. "ODOT 2014 Construction Highlights". Ohio Department of Transportation. Retrieved October 1, 2014.
- Ohio Department of Highways (1969). Official Highway Map (PDF) (Map). c. 1:563,200. Columbus: Ohio Department of Highways. OCLC 5673562, 7448779.
- Patch, David (May 2, 2005). "French Connection May Control Traffic Flow". The Blade. Toledo, OH. Retrieved April 8, 2014.
- Sedensky, Matt (March 30, 2006). "Missouri Drivers May Go to the Left". Star-News. Wilmington, NC. Associated Press. Retrieved April 8, 2014 – via Google News.
- "Wrong Way? Not in Kansas City". Land Line Magazine. March 31, 2006. Retrieved April 8, 2014.
- Emmert, Tom (August 11, 2004). "Area Needs a 'Beeline Bypass' for Trucks". The Cincinnati Enquirer (Editorial). Retrieved April 21, 2018.
- "Morning Commute Slows After Southwest Ohio Overpass Collapse". MSN.com. Retrieved January 20, 2015.
- "Deadly Overpass Collapse: I-75 Closed After Overpass Collapse Kills Worker, Injures Semi Driver". Cincinnati: WCPO-TV. Archived from the original on January 21, 2015. Retrieved January 20, 2015.
- Molski, Henry (January 19, 2015). "1 Confirmed Dead, 1 Injured in Ohio Overpass Collapse". USA Today. Retrieved January 22, 2015.
- "Officials: 2 People Were on Collapsed I-75 Bridge". The Cincinnati Enquirer. Retrieved January 22, 2015.
- Callahan, Denise G. (March 30, 2017). "Relief on the way for Union Centre Boulevard traffic congestion". Journal-News. Liberty Township, Butler County, Ohio. Retrieved October 6, 2018.
- Callahan, Denise G.; Blizzard, Nick (October 4, 2018). "Union Centre traffic to get help from new Ohio interchange design". Journal-News. Liberty Township, Butler County, Ohio. Retrieved October 6, 2018.
- Blizzard, Nick (October 4, 2018). "New Ohio interchange design to aid traffic, safety near Dayton Mall". Dayton Daily News. Retrieved October 6, 2018.
- Ohio Department of Highways (1969). Official Highway Map (PDF) (Map). c. 1:563,200. Columbus: Ohio Department of Highways. OCLC 5673562, 7448779.
- Ohio Department of Transportation (1976). Ohio Transportation Map (PDF) (Map). Scale not given. Columbus: Ohio Department of Transportation. Cincinnati inset. OCLC 5673562, 13655720, 35168139.
- Mecklenborg, Jake. "Brent Spence Bridge Photographs". Cincinnati-Transit.net.
- "ODOT Announces the Opening of I-75/Austin Boulevard Interchange" (Press release). Ohio Department of Transportation. July 2, 2010. Retrieved August 29, 2011.
- District 7. "West Carrollton Interchange". Ohio Department of Transportation.
- District 7. "Modernization of I-75 through Downtown Dayton: I-75 and US 35 Downtown Dayton Phase 1B". Ohio Department of Transportation.
- District 7. "Modernization of I-75 through Downtown Dayton: I-75 and SR 4 Phase 1A & Stanley Avenue". Ohio Department of Transportation.
- Ohio Department of Highways (1967). Official Highway Map (PDF) (Map). c. 1:563,200. Columbus: Ohio Department of Highways. § E6. OCLC 5673562, 7444249.
- Ohio Department of Highways (1969). Official Highway Map (PDF) (Map). c. 1:563,200. Columbus: Ohio Department of Highways. § E6. OCLC 5673562, 7448779.
- Ohio Department of Transportation (1973). Ohio Transportation Map (PDF) (Map). 1:554,400. Columbus: Ohio Department of Transportation. § E6. OCLC 5673562.
- Ohio Department of Transportation (1974). Ohio Transportation Map (PDF) (Map). 1:554,400. Columbus: Ohio Department of Transportation. § E6. OCLC 5673562.
- Harvey, Hank (December 5, 1991). "Perrysburg I-75 Link to Turnpike Opens". The Blade. Toledo, OH. Retrieved April 2, 2013.
- Patch, David (August 23, 1994). "Interchange Expected to Spur Region's Development". The Blade. Toledo, OH. Retrieved April 2, 2013.
- Patch, David (May 20, 2015). "DiSalle Bridge to Be Replaced". The Blade. Toledo, OH. Retrieved May 22, 2015.
- "Interstate 75 Widening Project in Toledo". Ohio Department of Transportation. March 2, 2015. Retrieved May 27, 2016.
- Patch, David (October 4, 2016). "Local Berdan/I-75 traffic Shift Begins Tonight, Starts Series of Changes". The Blade. Toledo, OH. Retrieved October 6, 2016.
|Wikinews has related news: Left-side driving part of a planned Findlay, Ohio interchange reconfiguration|
- Media related to Interstate 75 in Ohio at Wikimedia Commons