S.C. Code Ann. § 2-7-430

In case of an application for the charter or incorporation of a railroad, canal, tramway, plank road or turnpike company and the grant of the right of way therefor, in addition to the foregoing requirements for other charters and incorporations, the petition shall set forth and describe approximately the route proposed for the projected road and where such route will cross any railroad existing or in the course of construction and shall be accompanied by a plat or map delineating the same. And in case of an application for a railroad charter, the notice required by law shall be given before the application for the charter is made.