An overturned trailer has slowed westbound traffic Friday morning on Interstate 526 near Mount Pleasant, a police official said.

The wreck was reported on the James B. Edwards Bridge over the Wando River, Mount Pleasant Police Department Officer Jill Gioia said around 8:20 a.m.

Gioia said motorists should expect "significant delays" until the problem is remedied.

Instead, people could use U.S. Highway 17 to reach downtown Charleston, North Charleston and West Ashley.

Reach Andrew Knapp at 937-5414 or twitter.com/offlede.