Active Solicitation · DEPT OF DEFENSE

    FY26 DUWAMISH WATERWAY MAINTENANCE DREDGING, SEATTLE, WA

    Sol. W912DW26Z1BY5PresolicitationSet-aside: Total Small Business Set-Aside (FAR 19.5)SEATTLE, WA
    Open · 5d remaining
    DAYS TO CLOSE
    5
    closes Jun 28, 2026
    POSTED
    Jun 12, 2026
    Publication date
    NAICS CODE
    237990
    Primary industry classification
    PSC CODE
    Y1KF
    Product & service classification

    AI Summary

    The USACE Seattle District is seeking contractors for the FY26 Duwamish Waterway Maintenance Dredging project, with an estimated value between $1,000,000 and $5,000,000. The work involves removing up to 100,000 cubic yards of sediment using a clamshell dredge, scheduled between December 1, 2026, and February 15, 2027. This opportunity is a 100% small business set-aside.

    Contract details

    Solicitation No.
    W912DW26Z1BY5
    Notice Type
    Presolicitation
    Set-Aside
    Total Small Business Set-Aside (FAR 19.5)
    Posted Date
    June 12, 2026
    Response Deadline
    June 28, 2026
    NAICS Code
    237990AI guide
    PSC / Class Code
    Y1KF
    Issuing Office
    W071 ENDIST SEATTLE
    Primary Contact
    Geraldine L. Kemp
    State
    WA
    ZIP Code
    98134-2329
    AI Product/Service
    service

    Description

    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 $1,000,000 and $5,000,000.

    The resulting contract will be firm-fixed-price.

    This contract action will be 100% small business set-aside.

    FY26 Duwamish Waterway Maintenance Dredging Project Details:

    USACE Seattle District has a need for construction dredging, project entitled FY26 Duwamish Waterway Maintenance Dredging, Seattle, WA. The work is anticipated to take place during the allowable dredging work window of 1 December – 15 February for any given year.

    USACE Seattle District proposes to remove up to 100,000 cubic yards (CY) of accumulated sediment from designated reaches in the Duwamish Waterway federal navigation channel in Seattle, WA. Dredging would occur within the dredging work window of 01 Dec 2026 through 15 Feb 2027. The dredging will be accomplished using a clamshell dredge and equipment designed to minimize the potential for impacts to the surrounding environment. Dredged

    material 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.

    Key dates

    1. June 12, 2026Posted Date
    2. June 28, 2026Proposals / Responses Due

    AI search tags

    Frequently asked questions

    FY26 DUWAMISH WATERWAY MAINTENANCE DREDGING, SEATTLE, WA is a federal acquisition solicitation issued by DEPT OF DEFENSE. Review the full description, attachments, and submission requirements on SamSearch before the response deadline.

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