14 Nov 2025

Public invited to comment on draft study of Detroit Reservoir deep drawdown, potential end to hydropower production

The U.S. Army Corps of Engineers (USACE) Portland District is seeking public input on a draft study that considers changes to how the agency operates its Willamette Valley dams. This study – referred to as a Supplemental Environmental Impact Statement (SEIS) –builds upon a six-year study completed in April 2025 and addresses new requirements regarding endangered fish and hydropower production that emerged shortly before the six-year study was finalized.

7 Nov 2025

Corps of Engineers to explain current reservoir drawdowns at virtual public meeting

The U.S. Army Corps of Engineers will host a virtual public information session Thursday, Nov. 13, 5:30-6:30 p.m. to discuss plans to lower reservoir levels this fall at Cougar, Green Peter, Lookout Point, and Fall Creek reservoirs. The session will provide an overview of the reservoir drawdowns, the anticipated drawdown schedule, and how this year's operations differ from previous years. USACE experts will be on hand to answer questions and address community concerns.