FY26 Duwamish Waterway Maintenance Dredging

The US Army Corps of Engineers, Seattle District, is seeking bids for the FY26 Duwamish Waterway Maintenance Dredging project. The project involves removing up to 100,000 cubic yards of accumulated sediment from designated reaches in the Duwamish Waterway federal navigation channel in Seattle, WA. The dredging will be accomplished using a clamshell dredge and equipment designed to minimize the potential for impacts to the surrounding environment. The dredged material will be disposed of at the Dredge Materials Management Program (DMMP) Elliot Bay Open Water Disposal Site. • The project is estimated to cost between $1,000,000 and $5,000,000. • The resulting contract will be firm-fixed-price. • The contract action will be 100% small business set-aside. • Dredging is anticipated to take place during the allowable dredging work window of 1 December to 15 February for any given year. • The dredging will be accomplished using a clamshell dredge and equipment designed to minimize the potential for impacts to the surrounding environment.