The southern terminus of the highway is at the signalized junction of State Route 29 and State Route 4 in downtown Mechanicsburg.

Its northern terminus is at a T-intersection with State Route 287 approximately 4 miles (6.4 km) northwest of North Lewisburg.

The route connects North Lewisburg to Mechanicsburg and Middleburg.

No part of the highway is included within the National Highway System, a network of routes deemed most important for the nation's economy, mobility and defense.

The highway has not experienced any major changes to its routing since its inception.