Since its establishment, there have been countless removals and reestablishment of highways in the state (check notes for current or last form count).

South Carolina alternate routes have been utilized in a multitude of ways, including business, bypass, cut-thru and spurs.

All business routes in the state are set up as a loop, meaning it will separate then converge back to the main highway.

Typically, they serve to connect downtown areas in cities and towns in the state.

South Carolina, on rare occasion, will utilize other uniquely bannered routes in the state.