SCDOT to close Sea Mountain Highway swing bridge over the Intracoastal Waterway in Horry County for maintenance

Columbia, S.C. (June 16, 2025)— The South Carolina Department of Transportation will temporarily close the Sea Mountain Highway swing bridge over the Intracoastal Waterway in Horry County for maintenance beginning June 19 at 7 p.m. The closure is expected to reopen on June 20.

A map of the affected area can be found below.

SCDOT asks that drivers slow down and pay attention when driving near a work zone.