4 Jun 2026

Notice of Availability: Record of Decision for the Lower Columbia River (LCR) Channel Maintenance Plan (CMP) Final Dredged Material Management Plan (DMMP) - Environmental Impact Statement (EIS)

The U.S. Army Corps of Engineers, Portland District, announces the final Record of Decision (ROD) for the LCR CMP Final DMMP-EIS. The ROD formally approves the continued operations and maintenance (O&M) of the Lower Columbia River Federal Navigation Channel (FNC) for a minimum of 20 years by selecting Alternative 1 Refined - Maximize Placement as the Recommended Plan.

1 May 2026

Availability of Final Environmental Impact Statement (Final EIS) for the Lower Columbia River Channel Maintenance Plan and Final Integrated Dredged Material Management Plan (DMMP)

Expiration date: 5/30/2026

The U.S. Army Corps of Engineers, Portland District announces the availability of the Final Environmental Impact Statement (Final EIS) for the Lower Columbia River Channel Maintenance Plan and Final Integrated Dredged Material Management Plan (DMMP), prepared in accordance with the National Environmental Policy Act (NEPA). The Notice of Availability for the Final EIS is published in the Federal Register at: https://www.federalregister.gov/documents/2026/05/01/2026-08520/environmental-impact-statements-notice-of-availability . The Final EIS is available for public review on the USACE Portland District website at: https://www.nwp.usace.army.mil/lcrchannelmaintenance/ .