S.C. Code Ann. § 10-1-130
The trustees or governing bodies of State institutions and agencies may grant easements and rights of way over any property under their control, upon the concurrence and acquiescence of the State Budget and Control Board, whenever it appears that such easements will not materially impair the utility of the property or damage it and, when a consideration is paid therefor, any such amounts shall be placed in the State Treasury to the credit of the institution or agency having control of the property involved.