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Columbia River System Operations (CRSO) Project (DOE/EIS-0529)
Idaho, Montana, Oregon and Washington states

The U.S. Army Corps of Engineers, Bureau of Reclamation, and Bonneville Power Administration, as co-lead agencies, developed the EIS in response to the need to review and update management of the Columbia River System, which is comprised of 14 Federal dam and reservoir projects in Idaho, Montana, Oregon, and Washington.  The EIS, developed in accordance with the National Environmental Policy Act, documents the review of potential actions and discloses the environmental effects of taking those actions, including evaluating impacts to resources in the context of new information and changed conditions in the Columbia River basin and in response to a court order by the U.S. District Court for the District of Oregon.

The Draft EIS is available for review and comment during the public comment period through April 13, 2020.  The co-lead agencies will consider and respond to substantive comments on the Draft EIS in the Final EIS, which is expected to be released to the public this summer. 

Notice of Intent published on September 30, 2016
Public scoping period: September 30, 2016 – February 7, 2017
Scoping public meetings: October – January 2017
Draft EIS released for public comment on February 28, 2020
Draft EIS public comment period: February 28, 2020 – April 13, 2020

Draft EIS public hearings:  March 17, 2020 – March 31, 2020

Final EIS by June 2020
Record of Decision by September 2020

For more information, please visit the project website at

You may also contact by mail, email, or telephone:
U.S. Army Corps of Engineers Northwestern Division
P.O. Box 2870
Portland, OR  97208-2870

or online at

or by telephone at 1-800-290-5033


Draft EIS

Notice of Availibility   (02/28/2020)
Draft EIS available at

Notice to Extend Public Comment Period (01/03/2017)
Notice of Intent  (09/30/2016)