FY26 Duwamish Waterway Maintenance Dredging, Seattle, WA

Agency: DEPT OF DEFENSE
State: Washington
Type of Government: Federal
FSC Category:
  • Y - Construction of Structures and Facilities
NAICS Category:
  • 237990 - Other Heavy and Civil Engineering Construction
Set Aside: Total Small Business Set-Aside (FAR 19.5)
Posted Date: Jun 12, 2026
Due Date: Jun 28, 2026
Solicitation No: W912DW26Z1BY5
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FY26 Duwamish Waterway Maintenance Dredging, Seattle, WA
Active
Contract Opportunity
Notice ID
W912DW26Z1BY5
Related Notice
Department/Ind. Agency
DEPT OF DEFENSE
Sub-tier
DEPT OF THE ARMY
Major Command
US ARMY CORPS OF ENGINEERS
Sub Command
ENGINEER DIVISION NORTHWESTERN
Sub Command 2
ENDIST SEATTLE
Office
W071 ENDIST SEATTLE
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General Information
  • Contract Opportunity Type: Presolicitation (Original)
  • Original Published Date: Jun 12, 2026 08:49 am PDT
  • Original Response Date: Jun 28, 2026 10:00 am PDT
  • Inactive Policy: 15 days after response date
  • Original Inactive Date: Jul 13, 2026
  • Initiative:
    • None
Classification
  • Original Set Aside: Total Small Business Set-Aside (FAR 19.5)
  • Product Service Code: Y1KF - CONSTRUCTION OF DREDGING FACILITIES
  • NAICS Code:
    • 237990 - Other Heavy and Civil Engineering Construction
  • Place of Performance:
    Seattle , WA 98134
    USA
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.


Attachments/Links
Contact Information
Contracting Office Address
  • KO CONTRACTING DIVISION 4735 EAST MARGINAL WAY SOUTH
  • SEATTLE , WA 98134-2329
  • USA
Primary Point of Contact
Secondary Point of Contact
History
  • Jun 12, 2026 08:49 am PDTPresolicitation (Original)
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