Definitive Contract W9127N26CA015
- Not listed
- 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...
- The U.S. Army Corps of Engineers awarded a $28,391,703.80 firm-fixed price contract to Manson Construction Co. for West Coast Hopper Maintenance Dredging in 2024. The contract includes dredging work at Humboldt Bay, CA; the Mouth of the Columbia River, OR/WA; the Lower Columbia River, OR/WA; and Grays Harbor, WA, with an anticipated period of performance from April through December 2024. The contract was competitively awarded with no set-aside, and has additional optional quantities of...
- The U.S. Army Corps of Engineers, Portland District awarded a $28 million firm fixed price contract to Manson Construction Company for maintenance dredging along the West Coast of the United States. The contract calls for Manson Construction to dredge approximately six million cubic yards at locations including Humboldt Bay and the mouths of the Columbia River in California and Oregon. Major subcontractors include WCT Marine & Construction for construction materials, Etrac for dredge...
- The U.S. Army Corps of Engineers awarded a $92,008,546.78 firm-fixed-price definitive contract to Manson Construction Co for the West Coast Hopper Maintenance Dredging 2023 project. This contract involves the removal of approximately 2.7 million cubic yards of materials from Humboldt Bay, CA, the Mouth of the Columbia River in OR/WA, and the Lower Columbia River in OR/WA. Additionally, there are optional items for up to 1.3 million cubic yards of beach nourishment work at San Clemente, CA and...
- The Department of the Army Corps of Engineers awarded a $26.8 million firm fixed price contract to The Dutra Group for 2020 West Coast hopper maintenance dredging services. The solicitation sought bids to dredge approximately 7 million cubic yards in total from Humboldt Bay, California, the mouth of the Columbia River spanning Oregon and Washington, and the Lower Columbia River in those states. There was no set-aside designation for the procurement. The Dutra Group will perform dredging from...
- This federal contract award is for the 2019 West Coast Hopper Maintenance Dredging project, a $22,524,996.79 firm-fixed-price contract awarded by the U.S. Army Corps of Engineers (USACE) Portland District to Manson Construction Co., a for-profit subchapter S corporation. This project, which has no set-aside designation, involves dredging services to maintain the navigability of harbors, channels, and waterways along the West Coast. Manson Construction Co. has served as a prime contractor on over...
- This is a $22,237,306.60 definitive, firm-fixed-price contract awarded by the U.S. Army Corps of Engineers to the prime contractor, Manson Construction Co., for West Coast hopper dredging activities in 2016. The contract covers dredging work at several sites, including the mouth of the Columbia River, San Francisco Main Ship Channel, and various California and Oregon coastal channels. Manson Construction Co. is an experienced marine construction and dredging firm that frequently partners with...
- The U.S. Army Corps of Engineers, Portland District awarded a $28.95 million firm fixed price contract to The Dutra Group, doing business as Dutra Dredging, to provide hopper dredging services along the West Coast of the United States. The solicitation sought dredging of approximately 2.75 million cubic yards at four locations: the San Francisco Mainship Channel, Humboldt Bay Bar and Entrance, Mouth of the Columbia River, and Lower Columbia River. There was no set-aside designation for this...
- The U.S. Army Corps of Engineers, Portland District awarded a $11,479,483.12 Firm Fixed Price contract to Manson Construction Co for clamshell dredging at Coos Bay, Oregon. The contract was a full and open competition solicitation with a magnitude of construction between $5,000,000 and $10,000,000. The project requires the contractor to furnish all supervision, engineering, labor, materials, and equipment to complete the dredging work, with an ultimate completion date of March 1, 2025. Manson...
- The U.S. Army Corps of Engineers Portland District awarded a $10.15 million definitive contract to HME Construction Inc. for Oregon Washington clamshell maintenance dredging on June 11, 2025, under a total small business set-aside. HME Construction Inc. is an Alaskan Native Corporation-owned small business. The originating pre-solicitation, posted March 4, 2025, sought clamshell dredging services across multiple locations in Oregon and Washington, including Port Orford, Charleston Channel, Baker...
The U.S. Army Corps of Engineers Portland District awarded a $39.8 million definitive contract to Manson Construction Co. for West Coast hopper maintenance dredging on April 1, 2026, under firm-fixed-price terms with no set-aside. The originating solicitation (IFB No. W9127N26BA003) procures hopper dredging services and water quality monitoring for routine maintenance 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 contract encompasses 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. Period of performance extends from April 1, 2026, through December 15, 2026, with a required start date at Lower Columbia River between June 15 and July 10, 2026. The contract is NAICS 237990 (Dredging and Surface Cleanup Activities).
Name | Description | Solicitation Number | FederalAgency | Type | PostedDate |
|---|---|---|---|---|---|
West Coast Hopper Maintenance Dredging 2026 | W9127N26BA003 | Department of the Army Corps of Engineers Engineering District Portland | Pre-Solicitation 1/3 | 11/3/25, 8:45 AM | |
West Coast Hopper Maintenance Dredging 2026 | W9127N26BA003 | Department of the Army Corps of Engineers Engineering District Portland | Solicitation 2/3 | 1/30/26, 9:29 PM | |
West Coast Hopper Maintenance Dredging 2026 | W9127N26CA015 | Department of the Army Corps of Engineers Engineering District Portland | Award Notice 3/3 | 3/25/26, 11:11 AM |
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | Not listed | $26.0m | 3/22/26 |