FY26 Duwamish Waterway Maintenance Dredging, Seattle, WA

The US Army Corps of Engineers Seattle District is seeking dredging services for the Duwamish Waterway in Seattle, WA, with an estimated magnitude between $1,000,000 and $5,000,000, set aside for small businesses.

DEPT OF THE ARMY


General
Open (active)
W912DW26Z1BY5
Jun 28, 2026 05:00 PM
Jun 12, 2026 03:49 PM
$5,000,000.00
1 year
Small Business
Federal
Original Solicitation Links
Contact
Geraldine L. Kemp
geraldine.l.kemp@usace.army.mil
Submission Instructions
Online
Description

The U.S. Army Corps of Engineers Seattle District is soliciting for construction dredging services for the FY26 Duwamish Waterway Maintenance Dredging project in Seattle, Washington. The project involves removing up to 100,000 cubic yards of accumulated sediment from designated reaches of the Duwamish Waterway federal navigation channel. Dredging is anticipated to occur between December 1 and February 15 of any given year, with the specific work window for this contract being December 1, 2026, through February 15, 2027. The work will be performed using a clamshell dredge and equipment designed to minimize environmental impacts. Dredged material will be disposed of at the DMMP Elliot Bay Open Water Disposal Site. Specific dredging depths are outlined for Section A and the Turning Basin (to -15 ft MLLW plus overdepth) and Section B (to -15 ft MLLW plus overdepth). This is a firm-fixed-price contract action that will be 100% small business set-aside. The North American Industry Classification System (NAICS) code for this procurement is 237990, Dredging and Surface Cleanup, with a small business size standard of $37,000,000 in average annual receipts.

Classification Codes
NAICS237990Other Heavy and Civil Engineering Construction
PSCY1KFCONSTRUCTION OF DREDGING FACILITIES
Smart Codes
dredging serviceswaterway maintenancesediment removal
Specifications
Service Only
Yes
Timeline
Jun 12, 2026 12:00 PM-Published Date
Jun 28, 2026 12:00 PM-Response Date
Jul 13, 2026 12:00 PM-Inactive Date
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