State Route 181 (SR 181) is a 4.46-mile long (7.18 km) east–west state highway in the northern portion of the U.S. state of Ohio. The western terminus of SR 181 is at a signalized intersection with SR 61 in downtown Crestline, and its eastern terminus is at a T-intersection with SR 309 approximately one mile (1.6 km) west of Ontario.
Designated in the middle of the 1920s, SR 181 primarily serves as a short route connecting traffic between Crestline and Ontario. For most of its lifespan, SR 181 had its western terminus at the signalized intersection where U.S. Route 30 (US 30) had crossed the Crawford–Richland county line. When the U.S. route was transferred onto a new freeway alignment in 2006, SR 181 was extended west 0.54 miles (0.87 km) along the former routing of US 30 to a new western terminus where it meets SR 61.
^"DESTAPE". Ohio Department of Transportation. June 24, 2015. Retrieved November 10, 2015.
Crawford County
Richland County
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Global Information
SR 61 in Crestline
SR 309 near Ontario
