# Ohio State Route 18

State Route 18 (SR 18) is an east–west highway in northern Ohio. It is the sixth longest state route in the state. Its western terminus is at the Indiana state line near Hicksville, where the route continues in Indiana as State Road 8, and its eastern terminus is at State Route 91 in Akron.

## History

State Route 18 was an original state highway that went from Norwalk to the Pennsylvania state line. The route was extended to the Indiana state line in 1926. Until 1950, it was one of a very few Ohio routes to end at two state lines.
State Route 18's extension to the Indiana state line originally overlapped State Route 2 from the line to Hicksville. In 1940, State Route 18 was rerouted on the former State Route 193 from the line to Hicksville.
In 1950, State Route 18's eastern terminus was moved to Youngstown. Its old route to the Pennsylvania state line was recertified as State Route 289.
In 1966, the route was routed along State Route 8 and Interstate 80S (now Interstate 76) to Youngstown. This series of concurrencies ended in 1971, and State Route 18 would eventually be routed along Market Street in Akron, to end at its current terminus.
In 1969, State Route 18 was routed concurrently with U.S. Route 20 along the Norwalk Bypass, a limited access freeway. Prior to the Bypass route, State Route 18 followed Main Street and Woodlawn Avenue (formerly known as Medina Street) and later followed Main Street and Akron Road through the city of Norwalk (much of this alignment was already concurrent with US 20).
Before the rerouting of SR 18 via SR 8 and I-80S, SR 18 left West Market Street at Twin Oaks Drive in West Akron, where it went a few blocks east to North Portage Path, then jogged 1 block north to Memorial Parkway, which became Tallmadge Avenue east of the Cuyahoga River (before that, SR 18 continued along Market Street, then joined with SR 8 before reaching Tallmadge Avenue).
Tallmadge Road was a straight east/west road which became Mahoning Avenue as it approached the Youngstown area.
Most stretches of former SR 18 are still referred to as County Road 18 in Portage and Mahoning Counties.
SR 18 was realigned around North Baltimore on a two-lane 2.2-mile-long (3.5 km) bypass completed in 2012. The new bypass, which included a roundabout at the eastern transition to the original route, was built to facilitate traffic to a new CSX rail yard in Henry Township. The old route through North Baltimore became signed as SR 18 Business.

## Major intersections

| County | Location | mi | km | Destinations | Notes |
| Defiance | Hicksville Township | 0.00 | 0.00 | SR 8 west / CR 58 (Buckskin Road) / State Line Road | Indiana state line |
| Defiance | Hicksville | 3.10 | 4.99 | SR 2 west / SR 49 south (West High Street) / South Main Street | Western end of SR 2 / SR 49 concurrency |
| Defiance | Hicksville | 3.52 | 5.66 | SR 2 east / SR 49 north (East High Street) | Eastern end of SR 2 / SR 49 concurrency |
| Defiance | Sherwood | 14.12 | 22.72 | US 127 | |
| Defiance | Noble Township | 22.30 | 35.89 | SR 15 north – Ney, Bryan | Western end of SR 15 concurrency |
| Defiance | Defiance | 23.57 | 37.93 | US 24 – Antwerp, Napoleon | Exit 25 (US 24) |
| Defiance | Defiance | 24.58 | 39.56 | SR 66 north (North Clinton Street) / East Session Street | Western end of SR 66 concurrency |
| Defiance | Defiance | 25.22 | 40.59 | SR 111 west (Clinton Street) / West Second Street | Northern terminus of SR 111 |
| Defiance | Defiance | 25.36 | 40.81 | SR 66 south (Jefferson Street) | Eastern end of SR 66 concurrency |
| Defiance | Defiance | 25.85 | 41.60 | SR 15 south (Douglas Street) | Eastern end of SR 15 concurrency |
| Defiance | Defiance | 27.29 | 43.92 | SR 281 west (Florence Avenue) to US 24 – Independence Dam State Park | Western end of SR 281 concurrency |
| Defiance | Richland Township | 28.93 | 46.56 | SR 281 east – Custar | Eastern end of SR 281 concurrency |
| Henry | Holgate | 38.30 | 61.64 | SR 108 (North Wilhelm Street) – Napoleon, Miller City | |
| Henry | Monroe–Marion township line | 43.26 | 69.62 | SR 109 north / CR G | Western end of SR 109 concurrency |
| Henry | Hamler | 44.70 | 71.94 | SR 109 south (North First Street) | Eastern end of SR 109 concurrency |
| Henry | Bartlow Township | 49.85 | 80.23 | SR 65 north / CR E – McClure | Western end of SR 65 concurrency |
| Henry | Bartlow Township | 50.73 | 81.64 | SR 65 south – Belmore | Eastern end of SR 65 concurrency |
| Wood | Jackson Township | 59.00 | 94.95 | SR 235 north | Western end of SR 235 concurrency |
| Wood | Hoytville | 60.41 | 97.22 | SR 235 south | Eastern end of SR 235 concurrency |
| Wood | Henry Township | 64.65 | 104.04 | SR 18 Bus. east | Western terminus of SR 18 Bus. |
| Wood | North Baltimore | 66.29 | 106.68 | SR 18 Bus. west (Main Street) | Eastern terminus of SR 18 Bus.; roundabout |
| Wood | North Baltimore | 64.84 | 104.35 | I-75 – Dayton, Toledo | Exit 167 (I-75) |
| Hancock | Cass Township | 74.41 | 119.75 | SR 613 west to I-75 – Van Buren | Western end of SR 613 concurrency |
| Hancock–Seneca county line | Fostoria | 81.72 | 131.52 | US 23 north / SR 199 north (North County Line Street) / SR 613 / West North Street | Eastern end of SR 613; western end of US 23 / SR 199 concurrency |
| Seneca | Fostoria | 82.54 | 132.84 | SR 12 east (East South Street) | Western end of SR 12 concurrency |
| Seneca | Fostoria | 82.59 | 132.92 | SR 12 west (West Lytle Street) | Eastern end of SR 12 concurrency |
| Seneca | Fostoria | 83.06 | 133.67 | US 23 south / SR 199 south | Eastern end of US 23 / SR 199 concurrency |
| Seneca | Fostoria | 84.18 | 135.47 | SR 587 south | Northern terminus of SR 587 |
| Seneca | Hopewell Township | 89.90 | 144.68 | SR 635 north / CR 7 – [[, Ohio|]] | Southern terminus of SR 635 |
| Seneca | Tiffin | 93.81 | 150.97 | US 224 – Findlay | |
| Seneca | Tiffin | 95.61 | 153.87 | SR 53 (Sandusky Street) / SR 101 begins | Western end of SR 101 concurrency |
| Seneca | Tiffin | 96.16 | 154.75 | SR 100 / SR 231 south (South Washington Street) | Northern terminus of SR 231 (at Market Street) |
| Seneca | Tiffin | 96.63 | 155.51 | SR 101 east (East Market Street) | Eastern end of SR 101 concurrency |
| Seneca | Republic | 104.63 | 168.39 | SR 67 south (South Kilbourne Street) / SR 162 east (West Jefferson Street) – Upper Sandusky, North Fairfield | Western end of SR 67 concurrency; western terminus of SR 162 |
| Seneca | Republic | 104.75 | 168.58 | SR 19 / SR 67 ends – Bloomville, Green Springs | Eastern end of SR 67 concurrency |
| Sandusky | Bellevue | 118.48 | 190.68 | US 20 west (West Main Street) / Exchange Street | Western end of US 20 concurrency |
| Sandusky–Huron county line | Bellevue | 118.52 | 190.74 | SR 113 begins / SR 269-D (Northwest Street / Southwest Street) | Western end of SR 113 concurrency |
| Huron | Bellevue | 118.61 | 190.88 | SR 269 (Sandusky Street) | |
| Huron | Bellevue | 119.49 | 192.30 | SR 113 east – Milan | Eastern end of SR 113 concurrency |
| Huron | Bellevue | 121.02 | 194.76 | SR 4 to Ohio Turnpike – Bucyrus, Sandusky | |
| Huron | Monroeville | 125.87 | 202.57 | SR 99 / SR 547 Truck west (North Ridge Street) – Willard | Western end of SR 547 Truck concurrency |
| Huron | Monroeville | 126.52 | 203.61 | SR 547 west (Monroe Avenue) / SR 547 Truck ends / Milan Avenue | Eastern terminus of SR 547; eastern end of SR 547 Truck concurrency |
| Huron | Norwalk | 128.97– 129.28 | 207.56– 208.06 | To SR 61 – Norwalk | Interchange to unsigned SR 61-C; eastbound exit / westbound entrance only |
| Huron | Norwalk | 132.01 | 212.45 | US 250 / SR 13 to Ohio Turnpike – Norwalk, Ashland | Interchange |
| Huron | Norwalk Township | 133.84 | 215.39 | US 20 east / Woodlawn Avenue – Cleveland | Interchange; eastern end of US 20 concurrency |
| Huron | Norwalk–Townsend township line | 135.62 | 218.26 | SR 601 north / CR 51 (Greenwich Milan Town Line Road) – Milan | Southern terminus of SR 601 |
| Huron | Clarksfield Township | 143.21 | 230.47 | SR 60 north / CR 186 (Zenobia Road) – Wakeman | Western end of SR 60 concurrency |
| Huron | Clarksfield Township | 143.80 | 231.42 | SR 60 south – New London | Eastern end of SR 60 concurrency |
| Lorain | Brighton Township | 149.31 | 240.29 | SR 511 – Oberlin, Ashland | |
| Lorain | Wellington | 154.12 | 248.03 | SR 58 (Main Street) | |
| Lorain | Penfield Township | 159.15 | 256.13 | SR 301 – Elyria, West Salem | |
| Medina | Litchfield Township | 164.32 | 264.45 | SR 83 (Avon Lake Road) – Lodi, Avon Lake | Traffic circle |
| Medina | York Township | 169.45 | 272.70 | SR 57 / SR 252 north / CR 24 (Columbia Road) – Olmsted Falls, Elyria | Western end of SR 57 concurrency; southern terminus of SR 252 |
| Medina | Medina | 173.50 | 279.22 | US 42 south / SR 3 (Court Street) | Western end of SR 3 concurrency |
| Medina | Medina | 173.57 | 279.33 | SR 57 south (Broadway Street) | Eastern end of SR 57 concurrency |
| Medina | Medina | 173.68 | 279.51 | SR 3 north (Jefferson Street) | Eastern end of SR 3 concurrency |
| Medina | Medina–Montville township line | 177.17 | 285.13 | I-71 – Columbus, Cleveland | Exit 218 (I-71) |
| Medina | Granger–Sharon township line | 180.28 | 290.13 | SR 94 – Wadsworth, North Royalton | |
| Summit | Bath–Copley township line | 184.70 | 297.25 | I-77 / SR 21 – Akron, Cleveland | Exit 137 (I-77) |
| Summit | Akron | 192.48 | 309.77 | SR 162 west (Rand Avenue) | Western end of SR 162 concurrency |
| Summit | Akron | 192.75 | 310.20 | SR 261 west (High Street) / SR 162 ends | Eastern end of SR 162 concurrency |
| Summit | Akron | 192.81 | 310.30 | SR 261 east (Broadway) | |
| Summit | Akron | 195.18 | 314.11 | SR 241 south (Innovation Way) to I-76 | Northern terminus of SR 241 |
| Summit | Akron | 196.27– 196.39 | 315.87– 316.06 | I-76 / Mogadore Road – Lodi, Pittsburgh | Exit 26 (I-76) |
| Summit | Akron | 197.36 | 317.62 | SR 91 (Canton Road) / Robindale Avenue | |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access ||||||

## SR 18 Business

State Route 18 Business (SR 18 Bus.) is a 1.9-mile-long (3.1 km) business route through the village of North Baltimore in southern Wood County. The route starts at a T-intersection with SR 18 in Henry Township and runs east into North Baltimore on Deshler Road and West State Street. In the center of the village, the route heads south onto South Main Street. SR 18 Bus. ends at a roundabout with SR 18 in the southern limits of the village.
SR 18 Bus. was created in November 2012 along what used to be SR 18 through North Baltimore. When SR 18 was rerouted on a bypass of the village in 2012, the old route became a signed business route. Most of the business route was designated by the Ohio Department of Transportation as SR 18-J though a portion of the route near its western terminus was designated SR 18-C. As of 2017 those designations have been removed and ODOT no longer maintains the business route.