[clarification needed] SC 56 has a roundabout interchange, known as Hearon Circle, with I-85 Business.

In 1959, SC 56 was extended north, replacing US 176 along Asheville Highway to its current terminus at US 176.

[7][unreliable source] South Carolina Highway 56 Business (SC 56 Bus.)

is a 3.090-mile (4.973 km) business route that traverses through downtown Clinton, in concurrency with SC 72 Bus.

It travels to the east-northeast and curves to the northeast, before reaching its eastern terminus, an intersection with US 176/SC 9 (South Pine Street).