U.S. Route 23 in Ohio

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U.S. Route 23

Route of US 23 highlighted in red
Route information
Maintained by ODOT
Length234.83 mi[1] (377.92 km)
Major junctions
South end US 23 at U.S. Grant Bridge in Portsmouth
Major intersections
North end US 23 / US 223 at Michigan-Ohio state line near Sylvania
CountryUnited States
CountiesScioto, Pike, Ross, Pickaway, Franklin, Delaware, Marion, Wyandot, Seneca, Sandusky, Wood, Lucas
Highway system
  • Ohio State Highway System
SR 22 SR 23

U.S. Route 23 (US 23) is a United States Numbered Highway that runs from Jacksonville, Florida, to Mackinaw City, Michigan. In the state of Ohio, it is a major north–south state highway that runs from the Kentucky border at Portsmouth to the Michigan border at Sylvania.

Route description

The route crosses over the Ohio River via the U.S. Grant Bridge into the city of Portsmouth. Through downtown Portsmouth, it follows parallel one-way streets; northbound traffic is on Gay Street and southbound on Chillicothe Street. These roads merge into Scioto Trail, which becomes a divided highway north of Rosemount, and again north of Lucasville, through Piketon to just south of Waverly.[2]

Within Waverly, the route runs concurrently with State Route 104 (SR 104), in addition to a four-block concurrency with SR 335 that ends in downtown Waverly. The concurrency with SR 104 ends just south of Chillicothe at which point US 23 becomes an expressway.[2] The route bypasses Chillicothe to the east, including a short concurrency with US 35 before once again becoming a divided highway near Kingston. It continues as such through Circleville to the southern edge of Columbus, at the southern junction of Interstate 270 (I-270).[2]


Protected bike lane and bus stop island on Summit Street near the Ohio State University campus

In downtown Columbus, the route is applied to a one-way pair. It first jogs easterly via Livingston Avenue (north) and Fulton Street (south) before continuing northerly with northbound traffic on Fourth Street and southbound traffic on Third Street, which becomes Summit Street north of Fifth Avenue. The one-way pair ends at Hudson Street on the border of the SoHud and Glen Echo neighborhoods; both directions of US 23 jog westerly onto Hudson Street before continuing northerly on Indianola Avenue, closely paralleling I-71. The route then moves westerly again via Morse Road, then north again onto High Street on the north edge of the East Beechwold neighborhood. North of the northern junction with I-270, High Street becomes Columbus Pike.

The section immediately north of the northern junction with I-270 was upgraded with a northbound-only set of express lanes which passes under Dimension Drive, Campus View Boulevard, Radio City Boulevard, and Flint Road, with the former alignment of US 23 providing access to those roads. This configuration, known as the "Trench", opened to traffic in September 2015, and its construction coincides with a reconfiguration of the I-270 exit.[3] After the Trench, US 23 leaves Columbus heading north.

North of Columbus

Heading north, US 23 becomes a four-lane road with a grass median, intersections at street level, and numerous public and private driveways. Starting at a short concurrency with US 42 south of Delaware, the route becomes a freeway through downtown Delaware, intersecting with US 36 and ending the concurrency with US 42. North of downtown Delaware, US 23 becomes a five-lane road, with a center lane dedicated for left-hand turns, from both directions. When it reaches the Delaware Dam and Delaware State Park south of Waldo, a grass median returns. From Waldo to southwest of Carey the route is an expressway, all intersections with numbered US and state routes are Interstate-style interchanges, while most county and local streets that intersect, are at street level and unsignaled. US 23 bypasses Waldo, Marion, and Upper Sandusky to the east. To the east and north of Upper Sandusky, US 23 runs concurrently with US 30 for about 10 miles (16 km). Southwest of Carey the route then departs the expressway passing through Carey, running concurrently with SR 103 while the expressway continues westerly as SR 15. Within Carey, the concurrency with SR 103 ends, and a concurrency with SR 199 begins. The two co-signed routes continue as a rural highway to Fostoria.[2]

Within Fostoria, US 23 runs concurrently with SR 18 while turning westerly along Lytle Street, then northerly along the Midblock Underpass in concurrency with SR 12. At the northern end of the expressway, SR 12 departs while US 23, still concurrent with SR 18/SR 199, continues westerly along South Street, then northerly along County Line Street. SR 18/SR 199 departs within Fostoria city limits, while US 23 continues northerly and becomes Fostoria Road. Northeast of Bradner, the route has a junction with US 6.

Northwest of Woodville, the route runs concurrently with US 20; the highway continues northwesterly to Perrysburg.[2] There, US 23 begins a brief wrong-way concurrency with I-75, then departs for a concurrency with I-475, the western bypass of the Toledo metropolitan area. US 23 and I-475 run concurrently for the latter route's entire north–south portion, until I-475 departs in Sylvania to become an east–west aligned route. US 23 then continues northerly into Michigan as a freeway.[2]


Before the establishment of the United States Numbered Highway System in 1926, the route of what would eventually become US 23 was numbered as SR 4 from Portsmouth to Marion; SR 22 from Marion to Carey; SR 63 from Carey to Fostoria; SR 199 from Fostoria to Millbury; and SR 2 from Millbury to Toledo.[4][5] Over the years, portions of US 23 have been realigned to divided highway, freeway, or expressway portions. Among these are a bypass of Circleville built in 1958;[6] the Marion–Carey expressway routing, on which work began in 1962;[7] and a bypass of Chillicothe, on which work began in 1966.[8]

When first established, US 23 followed its current routing from Fostoria to Woodville, then continued north along present-day Fostoria Road into Millbury and northwest along present-day SR 51 (Woodville Road) into East Toledo. There, it followed East Broadway Avenue, Starr Avenue, and Main Street to the Cherry Street Bridge (now the Martin Luther King Bridge) across the Maumee River. The route then followed Cherry Street (present-day SR 120) to Detroit Avenue (US 24), before turning west onto Laskey Road and north onto Lewis Avenue.[5] Only a year later, the Fostoria–Toledo routing was shifted westerly, taking a northwest–southeast route that was originally designated SR 63 between Fostoria and Perrysburg, then East River Road into Toledo. It crossed the Maumee River via the Fassett Street Bridge, then followed South, Sumner, Logan, Summit, and Huron streets to rejoin its original routing. The Fostoria–Millbury routing was designated SR 199, and the Millbury–Toledo routing became SR 102,[9] which in turn became present-day SR 51 in 1955.[10] By 1940, US 23 was shifted westerly again in Toledo, taking the Anthony Wayne Bridge to Summit Street, then to Jefferson Avenue and Collingwood Boulevard before rejoining the previous routing.[11]

US 23 was realigned c. 1960 to follow Monroe Street northwesterly out of Toledo, joining with the first constructed segment of its current freeway routing in Sylvania.[12][13] The freeway was extended southerly to US 20 (Central Avenue) by 1964.[14] By 1969, the entire western freeway bypass of Toledo was complete, carrying the current routings of both US 23 and I-475. In addition, US 23 and SR 199 were swapped north of Fostoria in 1969, as US 23 reverted to its pre-1927 routing between Fostoria and Woodville, then running concurrently with US 20 from there to Perrysburg. The 1927–1969 routing of US 23 between Fostoria and Perrysburg thus became part of SR 199.[15]

A plan was proposed by the Ohio Department of Transportation (ODOT) in July 2020 to improve safety along US 23 in Wyandot County by reconfiguring several intersections and closing others to eliminate cross traffic and turns across opposing traffic for the stretch of US 23 between the interchange at SR 231 in Marion County and the interchange at SR 199 south of Upper Sandusky.[16][17][18] After public comments, the proposal was revised to drop one intersection from the plan over concerns about the impact on emergency services. The rest of the plan was rejected by the Wyandot County Commission in May 2021 because of the impacts on the community and the community's preference for an interchange at SR 294.[19][20][21]


North of Upper Sandusky in Salem Township, Wyandot County, there have been a number of serious crashes at the intersection with County Road 44 and Township Road 44 from 2016 to 2021. To improve its safety, beginning April 11, 2022, ODOT will convert the intersection to a pair of RIROs and close the median crossover. Once this conversion is completed, the stretch of US 23 from SR 199 south of Sandusky, through this junction, will be free of cross traffic and turns across opposing traffic.[22][23]

Major intersections

Ohio River0.000.00
US 23 south (Country Music Highway)
Continuation into Kentucky
U.S. Grant Bridge; Kentucky–Ohio state line

SR 73 west / SR 104 north / Ohio River Scenic Byway Alt. east (US 23 Bus. north) / US 23 north
Southern end of southbound SR 73/SR 104/ORB Alt. concurrency; eastern terminus of SR 73; southern terminus of SR 104; southern terminus of US 23 Bus.
SR 73 / Ohio River Scenic Byway Alt. west / SR 104 north (2nd Street west)
Northern end of southbound SR 73/SR 104/ORB Alt. concurrency

US 23 Bus. south (Chillicothe Street south)
Northern terminus of US 23 Bus.; no access from US 23 north (Gay Street)
US 52 / Ohio River Scenic Byway east / US 23 Truck (11th Street)
One-way street; northern terminus of US 23 Truck

US 52 / Ohio River Scenic Byway west / US 23 Truck south (12th Street) to SR 73 west / SR 104 north
One-way street

SR 728 east (Lucasville-Minford Road) / SR 348 west – Otway
Eastern terminus of SR 348; western terminus of SR 728
11.9219.18 SR 823 – IrontonInterchange
PikeScioto Township20.6333.20American Centrifuge FacilityHalf-folded diamond interchange; access to Portsmouth Gaseous Diffusion Plant
Seal Township23.0837.14 SR 32 / SR 124 – Jackson, CincinnatiDiamond interchange
WaverlyPride Drive (SR 220 Truck)Southern end of SR 220 Truck concurrency
SR 104 south (Lake White Road)
Southern end of SR 104 concurrency

SR 220 (Market Street) / SR 220 Truck ends / SR 335 begins
Southern end of SR 335 concurrency; northern end of SR 220 Truck concurrency; northern terminus of SR 220 Truck; counterclockwise terminus of SR 335
SR 335 east (Clough Street)
Northern end of SR 335 concurrency
RossFranklin Township35.6357.34
SR 372 east (Stoney Creek Road)
Scioto Township41.4066.63

US 23 Bus. / SR 104 north (Bridge Street) / Three Locks Road
Northern end of SR 104 concurrency; southern end of freeway; US 23 Bus, not signed southbound

US 50 (Eastern Avenue) to US 35 east
US 35 / US 50 east – Jackson, Athens
Southern end of US 35 concurrency; southbound left exit and northbound entrance

Main Street to US 50 west – Chillicothe
US 35 west – Dayton
Northern end of US 35 concurrency; northbound left exit and southbound entrance
Springfield Township48.7878.5048

US 23 Bus. south / SR 159 (Bridge Street) – Kingston, Chillicothe
Serves Adena Regional Medical Center; US 23 Bus. not signed northbound
Green Township50.7881.7250
SR 207 north
Northern end of freeway
PickawayPickaway Township57.2492.12
SR 361 east
Circleville63.92102.87 US 22 / SR 56 – Circleville, Washington Court HouseFive-ramp partial cloverleaf; northbound exit via Mound Street
South Bloomfield72.14116.10
SR 316 east (Ashville Road) – Ashville
Southern end of SR 316 concurrency
SR 316 west (North Street)
Northern end of SR 316 concurrency
SR 752 east
Harrison Township76.24122.70 SR 762 – Commercial Point
FranklinHamilton Township80.37129.34

SR 665 west / SR 317 east – Groveport, Rickenbacker Airport
I-270 (Columbus Bypass) to I-71
Interchange; signed as exits 83A (east) and 83B (west) southbound; I-270 exit 52

SR 104 north to US 33

SR 104 south to I-71
Interchange; SR 104 exit 91
I-70 / I-71Interchange; northbound entrance only; I-70 exit 100B; to be replaced by new interchange north of freeway
US 33 (3rd Street)Southern end of northbound US 33 east concurrency; one-way street, inbound access only from US 33

US 33 east (Livingston Avenue east)
Northern end of northbound US 33 east concurrency; southern end of US 33 west concurrency

I-71 south / I-70 west
I-70 exit 100B

I-70 east – Wheeling
Future off-ramp to replace old ramp south of freeway
I-70 / I-71Future on-ramp to replace old ramp south of freeway; access from I-70 east/I-71 north only

US 62 / SR 3 north (Main Street) to I-71 north
Southern end of US 62/SR 3 concurrency; one-way street

US 62 / SR 3 south (Rich Street) to SR 315
One-way street, outbound access only to US 62/SR 3
US 62 north / US 40 / SR 16 (Broad Street)
Northern end of US 62 concurrency
US 33 (Long Street) / SR 3 north (Long Street east)
One-way street, inbound access only from US 33

US 33 west / SR 3 south (Spring Street)
Northern end of US 33 west/SR 3 concurrency; one-way street
Convention Center ParkingSouthbound exit and entrance only; interchange
I-670 to I-71 – Dayton, Airport
I-670 exit 4
Worthington99.66160.39 SR 161 (Dublin Granville Road)

I-270 east to I-71
Interchange; I-270 exit 23; SR 315 exit 12A; no exit number southbound; consolidated into one single exit southbound
I-270 west / SR 315
Campus View Boulevard / Flint RoadInterchange northbound via local lanes; at-grade intersections southbound
DelawareOrange Township104.36167.95 SR 750 – Powell, Columbus Zoo
SR 315 south (Olentangy River Road)

US 42 south
Southern end of US 42 concurrency; partial interchange via connector road; serves Delaware Municipal Airport; southern end of freeway

US 42 north / US 36 (William Street) to SR 37
Northern end of US 42 concurrency; northbound exit and southbound entrance

SR 37 (Central Avenue) to US 42 north / US 36
Southbound exit and northbound entrance
115.96186.62N. Sandusky StreetPartial interchange via northbound entrance ramp and at-grade intersection; former incomplete full interchange with southbound exit;[24] northern end of freeway
Marlboro Township124.39200.19 SR 229 – Norton, Ashley
MarionWaldo126.35203.34 SR 98 – Waldo, BucyrusInterchange; access to SR 47 and SR 423
township line
Newmans-Cardington RoadAt-grade intersection; southern end of freeway
Marion Township134.56216.55 SR 95 – Marion, Mount Gilead
135.57218.18 SR 309 – Marion, Galion
137.14220.71Marion-Williamsport Road
Grand Prairie TownshipLinn Hipsher Road (CR 195)At-grade intersection; northern end of freeway
140.64226.34 SR 4 – BucyrusInterchange
143.52230.97 SR 231 – Morral, NevadaInterchange
WyandotPitt Township148.00238.18 SR 294 – Harpster
151.68244.11 SR 199Southern end of freeway; southern terminus of SR 199
Crane Township153.81–

US 30 east – Bucyrus, Mansfield
Southern end of US 30 concurrency
Upper Sandusky155.48250.22CR 330 (E. Wyandot Avenue) – Upper SanduskyNorthern end of freeway
158.17254.55 SR 53 / SR 67 – Upper Sandusky, TiffinSouthern end of freeway
159.42256.56 SR 199 – Upper Sandusky
Salem Township159.82–

US 30 west – Van Wert
Northern end of US 30 concurrency; left exit and entrance northbound
161.599260.068 CR 44At-grade intersection; northern end of freeway; scheduled to become a pair of RIROs April 2022
Crawford Township167.353–

SR 15 west to I-75 – Findlay, Toledo

SR 103 west
Interchange; eastern terminus of SR 15; southern end of SR 103 concurrency

SR 103 east / SR 199 south (E. Findlay Street) / SR 568 west (W. Findlay Street)
Northern end of SR 103 concurrency; southern end of SR 199 concurrency
SenecaLoudon Township178.20286.79 US 224 – Findlay, Tiffin

SR 18 east
Southern end of SR 18 concurrency
SR 12 west
Southern end of SR 12 concurrency
SR 12 east
Northern end of SR 12 concurrency
county line
SR 18 (North Street) / SR 613 west
Northern end of SR 18 concurrency; eastern terminus of SR 613
county line
SR 199 north
Northern end of SR 199 concurrency
county line
township quadripoint
196.95316.96 US 6 – Bowling Green, Fremont
township line
SR 600 east – Gibsonburg
Western terminus of SR 600
202.81326.39 SR 105 – Woodville, Pemberville
township line
SR 582 east
Southern end of SR 582 concurrency
SR 582 west
Northern end of SR 582 concurrency
US 20 east – Woodville, Fremont
Southern end of US 20 concurrency
WoodTroy Township208.25–

Pemberville Road / SR 420 north to I-280 – Toledo
Exit number follows US 20; to Ohio Turnpike (I-80/I-90); signed as exits 81A (SR 420) and 81B (Pemberville Road)
LemoyneLemoyne RoadInterchange via connector roads
Stony Ridge211.10339.73
SR 163 east
Western terminus of SR 163

I-75 north / US 20 west – Toledo, Perrysburg
Northern end of US 20 concurrency; eastern end of I-75 concurrency; southern end of freeway section; I-75 exit 193

I-75 south / I-475 begins – Dayton
Western end of I-75 concurrency; southern end of I-475 concurrency; exit numbers follow I-475; I-75 exit 192
2 SR 25 – Bowling Green, Perrysburg
LucasMaumee222.74358.474 US 24 (Anthony Wayne Trail) – Napoleon, Maumee
Monclova Township224.72361.656Salisbury Road, Dussel DriveProvides a connection to I-80/I-90 (Ohio Turnpike); opened 1989[25]
Springfield Township226.89365.148 SR 2 (Airport Highway) – Toledo Express Airport, Swanton, ToledoSigned as exits 8A (east) and 8B (west) southbound
SR 246 east
Western terminus of SR 246; added 2021
Sylvania Township231.81373.0613 US 20 / SR 120 (Central Avenue)
I-475 east – Toledo
Northern end of I-475 concurrency; exit numbers follow US 23; left exit southbound; I-475 exit 14
US 223 north / SR 51 – Sylvania
Southern end of US 223 concurrency; to SR 184

US 23 north / US 223 north – Ann Arbor
Continuation into Michigan
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Straight Line Diagrams (April 14, 2024). "SLDs". Ohio Department of Transportation. Retrieved April 14, 2024.
  2. ^ a b c d e f Ohio Department of Transportation (June 2011). Official Ohio Transportation Map (PDF) (Map). c. 1:570,240. Columbus: Ohio Department of Transportation. OCLC 5673562, 31884639.
  3. ^ Rouan, Rick (September 8, 2015). "Rt. 23 trench to open to traffic this week". The Columbus Dispatch. Retrieved May 25, 2016.
  4. ^ Ohio Department of Highways and Public Works (August 1925). Map of Ohio Showing State Routes (PDF) (Map). 1:760,320. Columbus: Ohio Department of Highways and Public Works. OCLC 5673562.
  5. ^ a b Ohio Department of Highways and Public Works (August 1, 1926). Map of Ohio Showing State Routes (PDF) (Map). 1:760,320. Columbus: Ohio Department of Highways and Public Works. OCLC 5673562.
  6. ^ Ohio Department of Highways (1958). Ohio Highway Map (PDF) (Map). 1:633,600. Columbus: Ohio Department of Highways. OCLC 5673562, 13688035.
  7. ^ Ohio Department of Highways (1962). Ohio Official Highway Map (PDF) (Map). c. 1:563,200. Columbus: Ohio Department of Highways. OCLC 5673562, 7444243.
  8. ^ Ohio Department of Highways (1966). Official Highway Map (PDF) (Map). c. 1:563,200. Columbus: Ohio Department of Highways. OCLC 5673562.
  9. ^ Ohio Department of Highways and Public Works (June 1, 1927). Map of Ohio Showing State Routes (PDF) (Map). 1:760,320. Columbus: Ohio Department of Highways and Public Works. OCLC 5673562.
  10. ^ Ohio Department of Highways (1955). Ohio Highway Map (PDF) (Map). 1:633,600. Columbus: Ohio Department of Highways. OCLC 5673562, 7448742.
  11. ^ Ohio Department of Highways (1940). Ohio Highway Map (PDF) (Map). 1:633,600. Columbus: Ohio Department of Highways. OCLC 5673562, 54667346.
  12. ^ Ohio Department of Highways (1959). Ohio Official Highway Map (PDF) (Map) (1959–1960 ed.). 1:633,600. Columbus: Ohio Department of Highways. OCLC 5673562, 13687960.
  13. ^ Ohio Department of Highways (1961). Ohio Official Highway Map (PDF) (Map). 1:633,600. Columbus: Ohio Department of Highways. OCLC 5673562, 54667348.
  14. ^ Ohio Department of Highways (1964). Ohio Official Highway Map (PDF) (Map). c. 1:563,200. Columbus: Ohio Department of Highways. OCLC 5673562, 7448791.
  15. ^ Ohio Department of Highways (1969). Official Highway Map (PDF) (Map). c. 1:563,200. Columbus: Ohio Department of Highways. OCLC 5673562, 7448779.
  16. ^ "ODOT to present project information online regarding U.S. 23 intersection improvements". Ohio Department of Transportation. June 30, 2020. Archived from the original on April 10, 2022. Retrieved April 10, 2022.
  17. ^ District 1 Public Information. "U.S. 23 intersection improvements". Ohio Department of Transportation. Project 109362. Archived from the original on April 10, 2022. Retrieved April 10, 2022.{{cite web}}: CS1 maint: numeric names: authors list (link)
  18. ^ Patch, David (July 5, 2020). "ODOT to cut off U.S. 23 access to rural Wyandot County roads". The Blade. Toledo, Ohio. Archived from the original on April 10, 2022. Retrieved April 10, 2022.
  19. ^ "U.S. 23 safety project called off". Ohio Department of Transportation. May 12, 2021. Archived from the original on April 10, 2022. Retrieved April 10, 2022.
  20. ^ "ODOT abandons U.S. 23 intersection changes". The Blade. Toledo, Ohio. May 12, 2021. Archived from the original on May 13, 2021. Retrieved April 10, 2022.
  21. ^ "U.S. 23 Safety Project Called Off After Petition Denied". Findlay, Ohio: WFIN. May 12, 2021. Archived from the original on April 10, 2022. Retrieved April 10, 2022.
  22. ^ District 1 Public Information (March 31, 2022). "Median crossover along U.S. 23 to be closed". Ohio Department of Transportation. Archived from the original on April 10, 2022. Retrieved April 10, 2022.{{cite web}}: CS1 maint: numeric names: authors list (link)
  23. ^ "Median crossover along US 23 to close". The Courier. Findlay, Ohio. Mar 31, 2022. Archived from the original on April 10, 2022. Retrieved April 10, 2022.
  24. ^ Budzak, Gary (March 9, 2016). "U.S. 23/Pennsylvania Avenue exit ramp to close Tuesday". Delaware Gazette. Retrieved May 22, 2017.
  25. ^ McLaughlin, Mary-Beth (June 8, 2003). "Maumee Turned Risk Into Riches at Arrowhead Park". The Blade. Toledo, OH. Retrieved June 16, 2008.

External links

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