It serves as a slower alternate rural route to Interstate 77 (I-77) and the western bypass of Rock Hill.

Going north, it hovers to the west and then east of I-77 and then passes through Richburg.

After entering York County, it has its own interchange with I-77, then proceeds to form the western bypass of Rock Hill.

Heckle, who served as South Carolina Department of Transportation District 4 Construction Engineer during the late 1940s through 1960s.

[citation needed] Established as a new primary routing in 1930 or 1931, it originally ran from SC 9 near Richburg to the York County line.