S.C. Code § 57-3-640
The department may construct and maintain necessary driveways and roads in state parks. All work to be performed by the department pursuant to the provisions of this section shall be with the consent and approval of the Department of Parks, Recreation and Tourism, and such work shall not result in the assumption by the department of any liability whatsoever on account of damages to property, injuries to persons or death growing out of or in any way connected with such work. Such driveways and roads taken over in state parks shall not affect the respective counties' portion of mileage to be taken over by the department under any other statute. The construction and maintenance work by the department authorized by this section shall be paid for from the state highway fund.
S.C. Code § 57-3-640