It was originally routed along its current alignment from its present southern terminus at US 224, at the time known as SR 17, to its junction with what is today the concurrency of US 20 and SR 18 in Monroeville, but in 1923 was a part of SR 2.
The route initially followed its current path from its southernmost point at US 224 (formerly SR 17) to where it meets today's concurrency of US 20 and SR 18 in Monroeville. In 1923, this section was included in SR 2.