All lanes of southbound Interstate 5 are back open at the Nisqually River Bridge following a crash involving three semi-trucks and a sedan. 

Traffic is backed up to DuPont and will take some time to clear out, according to the Washington State Department of Transportation.

The crash happened just before 10:45 a.m. at milepost 115, which is at the Pierce County and Thurston County line. It blocked all lanes of southbound traffic for about 30 minutes.

There were no injuries, according to Washington State Patrol Trooper Johnna Batiste.