S.C. Code Ann. § 58-15-610

Any corporation organized under the provisions of this chapter or under Chapter 7 of Title 33 engaged in the transportation of freight or passengers, by means of steamboat or otherwise, upon any of the navigable waters of this State, may exact reasonable tolls or fees for the use of wharves or landings located upon lands that are the property of the corporation or that are under lease or under the control of such corporation.