Oregon/Washington Clamshell Maintenance Dredging 2026

The U.S. Army Corps of Engineers Portland District plans to issue an Invitation for Bids for the Oregon/Washington Clamshell Maintenance Dredging 2026 project, with solicitation number W9127N26BA015. This project involves clamshell dredging at multiple mandatory and optional locations across Oregon and Washington, including sites such as Chetco Boat Basin, Port Orford, Baker Bay, Lower Vancouver Anchorage, and the Oregon Slough Lower among others. The total estimated dredging volume is approximately 486,100 cubic yards, with 456,000 cubic yards as the base scope and an optional 32,100 cubic yards contingent on shoaling conditions and funding. Material dredged will be disposed of in designated ocean and in-river sites. The contract performance period spans from mid-June 2026 to late March 2027, incorporating all selected options and subject to availability of funds. This procurement is a Small Business Set-Aside under NAICS code 237990 with a small business size standard of $37 million and an estimated contract value range between $5 million and $10 million. Key operational requirements include maintaining navigational access, managing dredging within specified environmental windows aligned to fish spawning protections, and coordinating with commercial vessel traffic, particularly at the Port of Longview sites. Specific deliverables focus on achieving prescribed dredging depths with paid overdepth allowances, supported by third-party hydrographic surveys at critical sites. Optional work areas include USCG Cape Disappointment and certain Port of Longview basins, which may be activated based on post-winter shoaling conditions. The solicitation is anticipated to be released around late May 2026 with bids due roughly 30 days thereafter. Government oversight will be led by the Portland District contracting office and technical personnel, with inspection and acceptance conducted at the dredging sites. Special operational considerations cover submerged utility awareness, public access restrictions, and dredging authority under recent federal legislation at specific anchorages. No finalized contract clauses or evaluation criteria are yet published, consistent with its current pre-solicitation status.