When US 6 was designated in Ohio in the early 1930s, SR 85 was at first co-signed with the U.S. highway from Euclid to Andover, but by the late 1930s, the SR 85 shields were removed from this stretch of roadway, leaving just the stretch of highway that exists today.

The two-lane state highway, which runs generally due east for its entire length, departs from the intersection and passes through a primarily commercial stretch of roadway to the point where it crosses the village limits of Andover, and enters into Andover Township.

[3] East of the traffic light, SR 85 traverses the causeway which crosses the middle of the Pymatuning Reservoir.

[4] Approximately halfway across the causeway, the roadway hits the Pennsylvania state line.

At that point, SR 85 comes to an end, and PA 285 picks up the rest of the route across the causeway.