(a) No pedestrian shall enter or remain upon any bridge or approach thereto beyond the bridge signal, gate or barrier after a bridge operation signal indication has been given. (b) No pedestrian shall pass through, around, over or under any crossing gate or barrier at a railroad grade crossing or bridge while such gate or barrier is closed or is being opened or closed.
Bridge and railroad signals
S.C. Code Ann. § 56-5-3280, under Title 56, Chapter 5.
S.C. Code Ann. § 56-5-3280