The westbound lanes of the Bluffton Parkway flyover and U.S. 278 near the flyover will be temporarily closed at various times next week.
On Monday and Tuesday the lane closures will be from 6 a.m. to 3 p.m.
The westbound lanes of U.S. 278 between Buckingham Plantation Drive and the Hilton Head Island bridges will close at 7 p.m. on Wednesday and reopen at 6 a.m. Thursday.
The closures are necessary for the installation of guard rails and crash cushions, according to a news release from R.R. Dawson Bridge Company.
Drivers are asked to be aware of equipment and crews working in the area and obey reduced speed limit signs and message board information, the release said.