West Coast Hopper Maintenance Dredging 2026

The U.S. Army Corps of Engineers, Portland District, is soliciting bids for West Coast Hopper Maintenance Dredging 2026, a trailing suction hopper dredging contract involving the removal and placement of dredged material at four primary locations: Humboldt Bay (California), Lower Columbia River (Oregon/Washington), Coos Bay (Oregon), and the Mouth of the Columbia River (Oregon/Washington), with optional work at East Sand Island for pump-ashore beach fill operations. The contract requires contractors to furnish a hopper dredge and support equipment capable of operating 24 hours per day, seven days per week, and to comply with comprehensive safety, environmental, and quality control requirements established under USACE EM 385-1-1 and applicable federal and state regulations. Key contract requirements include submission of a Project-Specific Management Plan within five days of the preconstruction conference, establishment of mechanical ullage sensors and draghead depth alarm systems to prevent over-dredging, submission of monthly exposure reports and accident notifications, and compliance with work windows that vary by location (ranging from May 1 through December 15 depending on environmental restrictions). Payment will be structured through 30 contract line items based on cubic yards dredged, cubic yard-miles for transit distances, and lump-sum mobilization/demobilization costs, with the contractor bearing the cost of failed post-dredge surveys requiring re-dredging. The solicitation, issued January 30, 2026, had a deadline for questions of February 25, 2026, and offers were due by 1:00 PM local time on March 2, 2026, with three bidders submitting proposals: Manson Construction Co. ($45,365,750), Restored Cloud, Inc. ($39,789,750), and a third unnamed bidder ($54,775,000).

This solicitation does not include any set-aside designations. The contract will be performed from April 1, 2026, through December 15, 2026, with a 90-day extended period following final physical completion, located in Portland, Oregon. The mandatory base contract line items total approximately $25.9 million to $31.9 million across the three bidders and cover mobilization/demobilization, dredging operations measured in cubic yards at various locations, bin measuring, surveys, and transit miles for material placement, with an additional 21 optional contract line items valued between $13.9 million and $22.9 million addressing incremental dredging, hydrographic surveys, shoreline placement operations, vegetation establishment, and avian dissuasion mounding. The total potential contract value across all mandatory and optional line items ranges from approximately $39.8 million to $54.8 million depending on scope selection and final award. The solicitation underwent four amendments between February 18 and February 25, 2026, addressing governmental safety requirements, measurement and payment specifications for specific contract line items, and the removal of the warranty of construction clause, with all amendments requiring offeror acknowledgment prior to the March 2 deadline.