State Route 12
Route information
Maintained by ODOT
Length	60.97 mi[1] (98.12 km)
Existed	1923–present
Major junctions
West end	SR 115 / SR 189 in Vaughnsville
Major intersections	I-75 / SR 15 in Findlay
East end	SR 53 near Fremont
Location
Country	United States
State	Ohio
Counties	Putnam, Allen, Hancock, Seneca, Sandusky
Highway system
Ohio State Highway System Interstate US State Scenic
← SR 11 → SR 13

State Route 12 (SR 12) is a generally northeast-southwest route in Ohio. Its western terminus is at SR 115 and SR 189 in Vaughnsville, and its eastern terminus is at SR 53 just south of Fremont.

Route description

From Vaughnsville, SR 12 travels northeast through the small towns of Columbus Grove, Pandora, and Benton Ridge before entering Findlay. Through Findlay, it shortly shares a route with US 224. After exiting Findlay, it continues on a northeast heading, passing through Arcadia, Fostoria, and Bettsville before ending at SR 53.

History

State Route 12's original routing in 1923 had it end in Findlay at its western terminus, and its eastern terminus extended from Fremont on U.S. Route 6's current route, going through Sandusky before ending in Cleveland.

In 1926, its eastern terminus was moved into Sandusky; its route to Cleveland was replaced with State Route 2.

When U.S. Route 6 was certified in 1932, State Route 12 was rerouted through the town of Castalia, ending in Sandusky. On this route, State Route 12 shared a route with State Route 101 from Castalia to Sandusky.

In 1938, State Route 12's western terminus was moved to U.S. Route 30N near Delphos, replacing the remaining section of State Route 106. This terminus was moved to Vaughnsville in 1971, when U.S. Route 30N (the modern routing of U.S. Route 30) moved off the Lincoln Highway.

In 1969, State Route 12's eastern terminus was moved to its current terminus. The section of road between Fremont and State Route 101 that was formerly State Route 12 was recertified as State Route 412.^[2][3]

Major junctions

County	Location	mi[1]	km	Destinations	Notes
Putnam	Sugar Creek Township	0.00	0.00	SR 115 (Water Street) / SR 189 west	Eastern terminus of SR 189
Allen	No major junctions
Putnam	Columbus Grove	5.21	8.38	SR 65 (Veterans Highway)
	Riley Township	10.45	16.82	SR 696 south / CR 6	Northern terminus of SR 696
Hancock	Union Township	19.24	30.96	SR 235 south	Western end of SR 235 concurrency
	Benton Ridge	21.50	34.60	SR 235 north	Eastern end of SR 235 concurrency
	Findlay	28.15	45.30	I-75 / SR 15 – Dayton, Toledo	Exit 157 (I-75)
		29.37	47.27	SR 37 east / SR 568 east (South Main Street) / East Main Cross Street	Western end of SR 37 concurrency; western terminus of SR 568
		29.72	47.83	US 224 west (North Main Street) / SR 37 end	Western end of US 224 concurrency; western terminus of SR 37
		30.81	49.58	US 224 east (Tiffin Avenue)	Eastern end of US 224 concurrency
Seneca	Fostoria	44.24	71.20	US 23 south / SR 18 east / SR 199 south (Lytle Street)	Western end of US 23 / SR 18 / SR 199 concurrency
		44.56	71.71	US 23 north / SR 18 west / SR 199 north (South Street)	Eastern end of US 23 / SR 18 / SR 199 concurrency
	Liberty Township	53.20	85.62	SR 635 south – Bascom	Western end of SR 635 concurrency
		53.45	86.02	SR 635 north – Kansas	Eastern end of SR 635 concurrency
	Bettsville	56.40	90.77	SR 590 north (Union Street)	Southern terminus of SR 590
Sandusky	Ballville Township	60.97	98.12	SR 53 / CR 201
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

Truck Route 12

SR 12 has a corresponding special route, Truck Route 12, that bypasses Findlay. The 7.2-mile-long (11.6 km) truck route begins at State Route 12's interchange with Interstate 75 on the west side of Findlay. It heads north on I-75 to its interchange with Hancock County Road 99, where it exits and moves east along that road, CR 212, and Bright Road. It then moves south along Bright Road to reconnect with SR 12 on the east side of Findlay.^[4]