Oregon/Washington Clamshell Maintenance Dredging 2026

Solicitation / RFP / RFQ

This solicitation (W9127N26BA015) is for "Oregon and Washington Clamshell Maintenance Dredging 2026." The project involves dredging and material placement at various locations in Oregon and Washington, with an estimated construction magnitude exceeding $10,000,000.00. This is a total small business set-aside.

• Mobilization and Demobilization

• Dredging and Placement of Materials at multiple locations including:

  • Chetco Boat Basin, OR
  • Port Orford, OR
  • Baker Bay, WA
  • USCG Cape Disappointment, WA
  • Chinook, WA
  • Skipanon River, OR
  • Skamokawa Creek, WA
  • Wahkiakum Ferry Channel, WA
  • Willow Grove Boat Basin, WA
  • Longview Turning Basin, WA
  • Port of Longview, WA
  • Old Mouth Cowlitz, WA
  • Lower Vancouver Anchorage, WA
  • Oregon Slough Lower, OR

• Hydrographic and Land Surveys

• Pre/Post Eelgrass Surveys at USCG Station Cape Disappointment

• Contract Type: Firm-Fixed Price

• Period of Performance: 10 days for commencement, 284 days for completion after notice to proceed.

• Performance Bonds: Required.

• Bid Guarantee: Required (20% of bid price or $3,000,000.00, whichever is less).

• Proposal Submission: Electronic submission via email only.

• Bid Opening: Telephonically scheduled one hour after bid due date/time.

• Proposal Deadline: July 6, 2026, by 02:00 PM local time.

• Offer Acceptance Period: 120 calendar days.

• Evaluation: Award based solely on price and price-related factors.

• Total Small Business Set-Aside.

• NAICS Code: 237990

• Size Standard: $37,000,000.00

• Bidders must complete and submit all required blocks in referenced solicitation provisions.

• Cybersecurity Maturity Model Certification (CMMC) Level 1 (Self) is required prior to award for contractor information systems processing Federal Contract Information (FCI) or controlled unclassified information (CUI).

• All inquiries must be submitted via ProjNet-Bidsm using Inquiry Key: MF3PKZ-A6NP76.

• A "Water Quality Monitoring Plan" by Anchor QEA, LLC for the Port of Longview Maintenance Dredging Project is also relevant.

• This plan details monitoring parameters (turbidity, dissolved oxygen, etc.), schedules, locations, field procedures, and reporting requirements for dredging and placement activities.

• Bidders must be aware of these requirements to ensure compliance with Washington State Water Quality Standards and Section 401 of the Clean Water Act, including best management practices (BMPs) and turbidity control measures.

Solicitation

This document is a solicitation (W9127N26BA009) for the Oregon and Washington Clamshell Maintenance Dredging 2026 project. The U.S. Army Corps of Engineers, Portland District, is seeking proposals for maintenance dredging services along various waterways in Oregon and Washington.

The project involves maintenance dredging at multiple locations, including:

• Chetco River Boat Basin Access Channel
• Port Orford
• Baker Bay Acceptance Areas
• U.S. Coast Guard Station Cape Disappointment
• Chinook River
• Skipanon River
• Skamokawa Creek
• Wahkiakum Ferry Channel
• Old Mouth Cowlitz
• Longview Turning Basin / Port of Longview
• Lower Vancouver Anchorage
• Oregon Slough
• Port of Longview Terminal Berths
• Rainier
• Vancouver Anchorage Placement Sites
• Oregon Slough & Vancouver Anchorage Placement Sites

Specific dredging depths, pay methods (pre/post survey), and placement site details are provided within the various drawing sheets.

• Contract Type: Not specified in this document.

• Period of Performance: Not specified in this document.

• Estimated Value: Not specified in this document.

• Proposal or quote submission instructions: Not detailed in this document.

• Evaluation criteria or factors: Not detailed in this document.

• Key deadlines or milestones: Not detailed in this document.

• No specific set-aside or eligibility requirements are detailed in this solicitation document.

• This solicitation package includes numerous drawing sheets detailing specific project locations, coordinates, cross-sections, and placement site information. Bidders must refer to these detailed drawings for project specifics.

Solicitation / RFP / RFQ

This document is a Determination and Findings (D&F) memorandum regarding the consolidation of requirements for a Firm Fixed-Price (FFP) Construction Contract for Clamshell Maintenance Dredging in Oregon and Washington for 2026. The U.S. Army Corps of Engineers (USACE), Portland District (NWP), plans to solicit bids for this consolidated contract to perform dredging at fourteen (14) authorized project sites across Oregon and Washington.

• Scope: Maintenance clamshell dredging at fourteen (14) project sites.

• Locations: Four in Oregon (Chetco River, Port Orford, Skipanon River, Oregon Slough) and ten in Washington (Baker Bay, USCG Station Cape Disappointment, Chinook, Skamokawa Creek, Wahkiakum Ferry Channel, Willow Grove Boat Basin, Longview Turning Basin, Old Mouth Cowlitz, Port of Longview, Old Mouth Cowlitz River, Columbia River at Vancouver Lower Anchorage).

• Volume: Approximately 488,100 cubic yards to be dredged under mandatory and optional line items.

• Dredged Material Placement: Designated in-water placement sites, including ocean and river disposal.

• Contract Type: Firm Fixed-Price (FFP).

• Method: Clamshell dredge paired with a bottom dump scow, due to channel width, configuration, and limited project depths making hopper dredging ineffective.

• Period of Performance: May 1, 2026, to January 31, 2027.

• Estimated Award Value: Not explicitly stated in the provided text, but referenced as approximately $11.63M in cost savings analysis.

• Solicitation Method: Invitation for Bids (IFB).

• Set-Aside: Total Small Business Set-aside.

• Set-Aside: This procurement is a Total Small Business Set-aside.

• Market Research: Indicates at least three capable small businesses are interested and capable of performing the work.

• The consolidation is justified to ensure cost-effective use of funds, reduce acquisition costs, and minimize contractor mobilization/demobilization costs. It also aims to ensure all required dredging is completed within environmental work windows, especially for smaller sites that might not be feasible as standalone contracts due to funding limitations.

• The primary North American Industry Classification System (NAICS) code is 237990 (Dredging and Surface Cleanup Activities).

Other / Unclassified

This document is the agenda and minutes from a pre-solicitation meeting for the Oregon Washington Clamshell Maintenance Dredging 2026 project, held on April 29, 2026. It outlines the purpose of the meeting, introduces the USACE project team, and provides projected contract schedule dates.

This document provides potential bidders with key information regarding the upcoming dredging contract. It details:

• Project Scope: Fourteen work locations (eleven mandatory, three optional) with anticipated cubic yardage and required depths for each. Specifics on dredging windows, environmental work windows, and potential survey requirements are included.
• Contract Schedule: Projected dates for advertisement, bid opening, award, notice to proceed (NTP), and project start.
• Key Considerations: Discussion points highlight the need for third-party surveys in certain locations, the structure for optional CLINs, specific requirements for Port of Longview work, the need to accommodate commercial vessel operations, new dredging authority for the Lower Vancouver anchorage, constraints at Port of Longview Willow Grove Boat Basin, and existing submerged utilities at Oregon Slough.

This information is crucial for bidders to understand the project's scope, timeline, and potential complexities, aiding in their decision to pursue the opportunity and in preparing their proposals.