S.C. Code Ann. § 57-7-50: Cutting trenches or laying pipes or tracks in state highways or bridges; permit.

It shall be unlawful for any person to cut trenches or lay pipes or tracks through, under, over or on any State highway or bridge without first obtaining a permit from the State Highway Engineer. A violation of this section shall be punishable by a fine of not more than one hundred dollars or imprisonment for not more than thirty days.