Dredging is set to begin next week in the Swinomish Channel.
The U.S. Army Corps of Engineers announced Wednesday that J.E. McAmis, Inc., of California will remove about 154,000 cubic yards of material from the channel between Oct. 17 and Nov. 30.
Removing the sediment that has built up in the 11-mile channel is necessary to maintain the channel, according to the corps.
One of the primary missions of the corps’ Seattle District is to maintain navigation channels and harbors in the Pacific Northwest to support a significant component of Washington’s economy, according to the announcement.
The Swinomish Channel will remain open during dredging. Boaters should pass on the side of the dredge that has two green lights or two diamonds in a line, or radio for instructions.
The channel was last dredged in 2014, according to the corps.
The corps plans to dispose of dredged material either in Rosario Strait northwest of Anacortes’ Washington Park or Port Gardner west of Everett, according to the dredging application.