Lower Snake River Water Supply Replacement Study

The four Lower Snake River dams: Ice Harbor, Lower Monumental, Little Goose, Lower Granite.

The Bureau of Reclamation and the Washington State Department of Ecology have initiated the Lower Snake River Water Supply Replacement Study. The study goal is to obtain a detailed understanding of current water supply and irrigation, municipal and industrial uses near the four Lower Snake River dams (Ice Harbor, Lower Monumental, Little Goose, Lower Granite) in Washington and Idaho, evaluate impacts to water delivery in the event Congress were to authorize breach of the dams, and evaluate mitigation approaches in the event they were breached.

Documents
10/2024 Lower Snake River Water Supply Replacement Study Update Presentation PDF 1.93 MB
06/2024 Lower Snake River Water Supply Replacement Study Presentation PDF 1.69 MB
08/2024 Lower Snake River Water Supply Replacement Study Fact Sheet PDF 914 KB
Related Links
News Release - Agencies provide progress update on lower Snake River study HTML
News Release - Agencies initiate lower Snake River study HTML
Lower Snake River Water Supply Study Public Meeting - Session 1 Recording HTML
Lower Snake River Water Supply Study Public Meeting - Session 2 Recording HTML
Lower Snake River Water Supply Study Progress Update Recording HTML
Lower Snake River Water Supply Replacement Study


Contact

Michael Coffey
208-378-6231
bor-sha-lsrwsrscomments@usbr.gov

Bureau of Reclamation
Columbia–Pacific Northwest Region
1150 N Curtis Road
Boise, Idaho 83706-1234

Stephanie May
509-202-5674
smay461@ecy.wa.gov

State of Washington
Department of Ecology


Last Update: 10/22/24