norfolk southern corp say tuesday rail rout close hurricane irma restore service safe start run train accordingly even u.s. railroad say regional flood power outages continue curb operations network u.s. southeast workers clear tree assess overall track condition railroad work restore service norfolk southern open origin facility gate shipments destine charleston south carolina though gate remain close traffic destine jacksonville florida savannah-garden city georgia florida east coast railway locations intermodal facility jacksonville open tuesday morning railroad say norfolk southern resume limit train service irma-hit areas