ROCK HILL — Two southbound lanes on Interstate 77 in York County were reopened ahead of schedule Thursday. The state S.C. Department of Transportation had said the lanes were slated to open by Monday morning after repairs. But state DOT crews were able to repair a foot-wide hole in the bridge over the Catawba River between Rock Hill and Fort Mill by 5:30 p.m. Thursday. The hole was found Wednesday during an inspection of bridges from the state line to Columbia. The hole was the result of aging infrastructure, DOT said.