Contract · Federal · Total Small Business Set-Aside (FAR 19.5)

FY26 Duwamish Waterway Maintenance Dredging

Agency: DEPT OF DEFENSE / DEPT OF THE ARMY
Location: SEATTLE, WA
Amount: Amount not listed
Posted: Jul 21, 2026
Set-aside: Total Small Business Set-Aside (FAR 19.5)
NAICS code: 237990 - Other Heavy and Civil Engineering Construction look up NAICS codes
PSC code: Y1KF - Construction of Structures and Facilities (general category)

Timeline

Posted

Jul 21, 2026
Status

Open now

What contracts like this typically pay

est. $55K-$1.4M

Estimated from 28 similar past awards nationwide, NAICS 237990.

This is not this contract’s value. It’s what the government has actually paid for comparable work in the past. How we estimate this.

What this contract is for

Agency: DEPT OF DEFENSE / DEPT OF THE ARMY
Location: SEATTLE, WA
Set-aside: Total Small Business Set-Aside (FAR 19.5)
NAICS: 237990 - Other Heavy and Civil Engineering Construction
Scope: Federal

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.

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.

PLEASE REFER TO THE ATTACHED SOLICITATION DOCUMENTATION FOR COMPLETE DETAILS OF REQUIREMENTS AND INSTRUCTIONS FOR BID SUBMISSIONS.

Official solicitation and documents

The full solicitation, any attachments, and the actual submission instructions live on the official listing, not on this page. Oppward summarizes public record data; it does not host or mirror the source documents.

View the official listing on SAM.gov

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How to bid on this

This is a contract solicitation, not a grant. To bid, you submit a proposal (usually a price and a description of how you would do the work) directly to the government, through the channel the official listing specifies, not through Oppward.

Make sure your business has an active SAM.gov registration. You cannot be paid on a federal contract without one.
Read the full solicitation on the official listing above, especially the scope of work, not just this summary. Our guide to reading a solicitation walks through what to look for.
Check the set-aside listed above and confirm your business actually qualifies for it before you spend time on a proposal. See our guide to set-asides if the category is unfamiliar.
Submit your proposal by the deadline, using the exact submission method the official listing states. A technically on-time bid sent the wrong way is often treated as late.

Read our guide: Government construction and trades contracts: how they work