South Carolina Highway 6 (SC 6) is a 116.092-mile (186.832 km) primary state highway in the U.S. state of South Carolina. It extends from US 76 in Ballentine to US 52/SC 6 Truck in Moncks Corner. It uniquely links all three of the major hydropower projects in South Carolina: Lake Murray, Lake Marion, and Lake Moultrie.