Project: west coast hopper maintenance dredging 2026
Active Definitive Contract Awarded Last action
- Contract number
- W9127N26CA015
- Awardee
-
Manson Construction Co UEI UJGKNVYG6UZ3
- Awarding agency
-
ENDIST Portland
US Army Corps of Engineers, Department of Defense
- Obligated
- $33,743,750
Award facts
- Opportunity
-
- West Coast Hopper Maintenance Dredging 2026 Pre-Solicitation · W9127N26BA003 · Posted Nov 3, 2025
- Contract value 85% obligated
-
- $33,799,750.00 Current, with exercised options
- $39,845,750.00 Potential, with all options
- Completion date 84% complete
- Current and potential, with all options
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- PSC
- Y1KF Construction Of Dredging Facilities
- Set-aside
- No set-aside
- Competition
- Full and Open Competition · 2 offers Sealed Bid
- Pricing
- Firm Fixed Price
- Place of performance
- Portland, OR 97217, USA
- Legislative mandates
-
- Davis-Bacon Act FAR subpart 22.4
- Employment Eligibility Verification (E-Verify) FAR subpart 22.18
Award details come from SAM.gov/FPDS.
Transactions
| Action | Obligated | Date |
|---|---|---|
| Exercise an Option | $550,000 | |
| Supplemental Agreement for work within scope | $5,720,000 | |
| Exercise an Option | $1,500,000 | |
| Original award | $25,973,750 |
About this award
The U.S. Army Corps of Engineers Portland District awarded a $39.79 million firm-fixed-price definitive contract to Manson Construction Co for hopper dredging services on April 1, 2026, completing by December 15, 2026, under full and open competition with no set-aside.
The originating solicitation (IFB No. W9127N26BA003) procured hopper dredging services and water quality monitoring for routine maintenance dredging across five West Coast locations: Humboldt Bay Bar and Entrance in California, Coos Bay Entrance in Oregon, the Mouth of the Columbia River, the Lower Columbia River in Oregon and Washington, and East Sand Island in Oregon. The solicitation encompassed approximately 3.2 million cubic yards of mandatory routine maintenance dredging with an additional 1.6 million cubic yards of optional work.
Place of performance is Portland, OR 97217. The contract runs from April 1, 2026, through December 15, 2026, with a required start date at the Lower Columbia River between June 15 and July 10, 2026.
Manson Construction Co is a large for-profit Subchapter S corporation headquartered in Seattle, Washington, founded in 1905, specializing in marine construction and dredging. The company operates exclusively as a prime contractor with no SBA certifications and competes on unrestricted competitive basis. Manson holds a single-award IDIQ with Naval Facilities Engineering Command valued at $995 million for design-build and design-bid-build waterfront construction and maintains equipment-rental contracts with the Army Corps of Engineers including hopper dredge rental ($30 million) and cutterhead pipeline dredge rental ($40 million).
Quick answers
Who was awarded contract W9127N26CA015?
W9127N26CA015 was awarded to Manson Construction Co by ENDIST Portland (US Army Corps of Engineers) on April 1, 2026.
How much is contract W9127N26CA015 worth?
The government has obligated $33,743,750 on W9127N26CA015. Its current value, with exercised options, is $33,799,750. Its potential value, with all options, is $39,845,750.
Was contract W9127N26CA015 competed?
The extent of competition for W9127N26CA015 was full and open competition. The government received 2 offers.
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