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FY26 Duwamish Waterway Maintenance Dredging, Seattle, WA
Contact and place of performance
Geraldine L. Kemp
Seattle, WA 98134
USA
This Synopsis/Pre-Solicitation Notice is ONLY A NOTIFICATION that a solicitation is anticipated and forthcoming. All questions regarding this Synopsis/Pre-Solicitation should be submitted in writing to the Point of Contact(s) indicated below. Construction Project: FY26 Duwamish Waterway Maintenance Dredging Pre-solicitation Notice Number: W912DW26Z1BY5 The magnitude of construction is estimated to be between $1,000,0...
View morematerial will be disposed at the Dredge Materials Management Program (DMMP) Elliot Bay Open Water Disposal Site. Dredging in Section A (Sta. 254+00 to Sta. 270+56) and the Turning Basin (Sta. 270+56 to Sta. 275+56) will be to 15 ft MLLW plus 2 ft overdepth. Dredging in Section B (Sta. 242+00 to Sta. 254+00) will be to -15 ft MLLW plus 1 ft overdepth
See the forthcoming solicitation for details about bid submission and virtual bid opening. The NAICS code for this procurement is 237990, Dredging and Surface Cleanup, and the associated small business size standard is $37,000,000 in average annual receipts.
Offerors are responsible for checking for any update(s) to the Notice/Solicitation. The Government is not responsible for any loss of Internet connectivity or for an offeror's inability to access the document(s) posted at the referenced website. To obtain automatic notifications of updates to this notice, you must log in to www.SAM.gov and add the solicitation to your Watchlist. If you would like to list your firm so others can see you are an interested vendor, you must click the ‘Add Me to Interested Vendors’ button in the listing for this solicitation on www.SAM.gov.
The U.S. Army Corps of Engineers, Seattle District, is planning a maintenance dredging project for the Duwamish Waterway in Seattle, Washington. Under solicitation number W912DW26Z1BY5, the agency intends to remove up to 100,000 cubic yards of accumulated sediment from designated reaches in the federal navigation channel. The work involves using a clamshell dredge and specialized equipment to minimize environmental impacts, with all dredged material slated for disposal at the Elliott Bay Open Water Disposal Site. The estimated magnitude of construction is between $1,000,000 and $5,000,000, resulting in a firm-fixed-price contract.
The performance period is aligned with the allowable dredging window, which runs from December 1, 2026, through February 15, 2027. Specific technical requirements include dredging Sections A and the Turning Basin to a depth of 15 feet Mean Lower Low Water (MLLW) plus two feet of overdepth, while Section B will be dredged to 15 feet MLLW plus one foot of overdepth. The response deadline for this pre-solicitation notice is June 28, 2026.
This procurement is 100% set-aside for Small Business Administration (SBA) entities. It is classified under NAICS 237990, Other Heavy and Civil Engineering Construction, and PSC Y1KF, Construction of Dredging Facilities. Geraldine L. Kemp is the designated point of contact for this action. No attachments are currently included with this notice.
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