The 47-foot boat crew was able to assist the dredge out of the channel.
At approximately 8 a.m Tuesday, the barge was reported to have overturned and sunk in approximately 10 feet of water.
A boat crew from Station Quillayute River has placed containment boom around the submerged barge.
The owner of the dredge has contracted a salvage and dive company to contain any possible pollution and to assess salvage options of the sunken dredge and barge.
Coast Guard Sector Seattle is on scene and assisting Washington Department of Ecology with the investigation in addition to monitoring any possible pollution.