FY26 Duwamish Waterway Dredging

The US Army Corps of Engineers is seeking sources for a construction dredging project in the Duwamish Waterway federal navigation channel in Seattle, WA. The project involves removing up to 100,000 cubic yards of accumulated sediment using a clamshell dredge and equipment designed to minimize environmental impacts. The dredging will occur between December 1, 2026, and February 15, 2027. Interested firms should submit a capabilities package including their firm's name, address, point of contact, phone number, and email address, as well as their business classification and bonding information. The key requirements for this project include: • Removing up to 100,000 cubic yards of accumulated sediment • Using a clamshell dredge and equipment designed to minimize environmental impacts • Dredging in designated reaches in the Duwamish Waterway federal navigation channel • Disposing of dredged material at the Dredge Materials Management Program (DMMP) Elliot Bay Open Water Disposal Site • Meeting the requirements outlined in the capabilities package