The U.S. Army Corps of Engineers, in partnership with local sponsor King County, will begin maintenance dredging of the Kenmore Federal Channel December 14, 2020, in Kenmore, Washington.
The Corps awarded the $4.2 million dredging contract to American Construction Co. Approximately 35,000 cubic yards of material will be dredged via clamshell dredge from the channel. Dredged material will be transported by barge to the Waste Management Duwamish Reload Facility, a commercial transload facility. From there it will be transported by rail to the Columbia Ridge Landfill for disposal.
The material was tested, and the Corps prepared a biological evaluation and National Environmental Protection Act (NEPA) documentation in accordance with the Federal and State requirements. The Corps assures full environmental compliance prior to starting, and potential impacts are avoided through implementing timing restrictions and dredging best management practices.
Boaters in the area should be cautious and avoid the dredge and barge operations and pass the dredging operations slowly. The operation will run 24 hours/day, 7 days/per week and should be completed by February 1, 2021.
About the U.S. Army Corps of Engineers
One of the Seattle District’s primary missions is to maintain the navigation channels and harbors in the Pacific Northwest. Maintenance and navigation dredging are done frequently in harbor areas, ports and marinas. A significant component of Washington’s economy depends on navigation and commerce, which in turn depends on dredging the state’s waterways, such as the Kenmore Federal Channel.
Release no. 20-125