It was initially a spur route that ran along its present alignment from its northern terminus at SR 821, at the time a part of US 21, southwesterly to approximately its southern intersection with County Road 75 (CR 75) in southern Noble County.
It was initially a branch route that ran along its current path from its northern endpoint at SR 821, formerly part of US 21, southwestward to approximately its southern intersection with County Road 75 (CR 75) in southern Noble County.