State environmental review of proposed Chehalis River Basin Flood Damage Reduction Project
The Chehalis River Basin Flood Control Zone District (Flood District) is seeking to construct a unique flood-control dam and associated temporary reservoir on the Chehalis River near Pe Ell and make improvements to the levee around the Chehalis-Centralia Airport. The Washington State Department of Ecology (Ecology) is reviewing the proposal under the State Environmental Policy Act.
On Nov. 20, 2025, Ecology released a revised state draft environmental impact statement for the project, analyzing whether the proposal would adversely impact the environment and ways these impacts might be offset or mitigated.
The public comment period for the revised draft environmental study is open until Feb. 4, 2026. Go to Ecology’s webpage for more information, including how to review and comment on the latest draft assessment.
Contact us
Environmental review contact
Meg Bommarito
Ecology SEPA EIS Project Manager
(425) 681-6236
Media contact
Curt Hart
Ecology Communications Manager
(564) 250-2126
Equal access
To ensure equal access to materials, Ecology will provide auxiliary aids/services to persons with disabilities. Please call (360) 407-6831 with any requests. Persons with hearing loss and speech disability can contact 711 for the Washington Relay Service. Persons with a speech disability may call TTY at (877) 833-6341. All meeting-related requests must be received 72 hours in advance.