FY25 west coast hopper dredging

Ended Definitive Contract Awarded Last action

Contract number
W9127N25C0005
Awardee
Awarding agency
Obligated
$29,904,165

Award facts

Opportunity
Contract value 89% obligated
  • $29,904,165.10 Current, with exercised options
  • $33,654,165.10 Potential, with all options
Completion date 100% complete
Current and potential, with all options
Funding agency
US Army Corps of Engineers Department of the Army, Department of Defense
Set-aside
No set-aside
Competition
1 offer Sealed Bid
Pricing
Firm Fixed Price
Place of performance
Portland, OR 97217, USA
Legislative mandates

Award details come from SAM.gov/FPDS.

Transactions

Action Obligated Date
Close Out P00004 · Mobilization and demobilization -$171,404
Supplemental Agreement for work within scope A00003 · Additional quantity clin 9 $480,000
Exercise an Option P00003 · Awarding optional clin 14 $1,100,000
Supplemental Agreement for work within scope A00002 · Mobilization and demobilization $160,105
Other Administrative Action P00002 · Replace contract clause for buy american act $0
Supplemental Agreement for work within scope A00001 · Third party surveys $326,714
Exercise an Option P00001 · Mobilization and demobilization $1,750,000
Original award $26,258,750

About this award

The U.S. Army Corps of Engineers awarded a $33.65 million firm fixed-price definitive contract to Manson Construction Co. for FY25 West Coast Hopper Dredging Mobilization and Demobilization services. The work, performed from May 2025 through December 15, 2025, involves hopper dredge services at multiple West Coast locations including Humboldt Bay, California; the Mouth of the Columbia River in Oregon and Washington; Lower Columbia River in Oregon and Washington; and Coos Bay, Oregon. The contract includes approximately 3.2 million cubic yards of mandatory routine maintenance dredging with an additional optional 1.45 million cubic yards at Coos Bay, along with mandatory water quality monitoring requirements. The procurement was unrestricted with no set-aside designation and was awarded based on competitive bidding through an Invitation for Bids process.

Manson Construction Co., a Seattle-based for-profit marine construction and dredging specialist founded in 1905, is well-positioned as the awardee given its extensive history as a preferred federal contractor for the Army Corps of Engineers. The company currently holds multiple significant indefinite delivery contracts with the Corps of Engineers worth approximately $119 million across the New Orleans and Mobile Districts, as well as a combined $1.32 billion in multiple-award indefinite delivery contracts with Naval Facilities Engineering Command, demonstrating sustained federal confidence in its capability to execute complex maritime infrastructure projects. The Portland District contract represents continued reliance on Manson's specialized hopper dredging expertise for maintaining critical West Coast navigation channels and supporting maritime commerce.

Quick answers

Who was awarded contract W9127N25C0005?

W9127N25C0005 was awarded to Manson Construction Co by ENDIST Portland (US Army Corps of Engineers) on April 1, 2025.

How much is contract W9127N25C0005 worth?

The government has obligated $29,904,165 on W9127N25C0005. Its potential value, with all options, is $33,654,165.

Which agency awarded contract W9127N25C0005?

ENDIST Portland (US Army Corps of Engineers) awarded W9127N25C0005, with funding from US Army Corps of Engineers (Department of the Army).

Was contract W9127N25C0005 competed?

The government received 1 offer.

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