SR 3015 is a five-mile (8 km) long road where the southern terminus is at Derry Street.

[2] The road continues north, intersecting SR 3026, Elmerton Avenue near Harrisburg.

SR 3015 continues north through a series of hills - the foothills of nearby Blue Mountain.

At PA 39 is the northern terminus of SR 3015; Progress Avenue continues north into developments that have been built in the 2000s.

[4] The route became orphaned from its parent once that happened, and when Pennsylvania cleaned up the road designations in 1955, PA 543 was deleted.

In 1987, when Pennsylvania instituted the Location Referencing System, the road was given its current designation SR 3015.