News Releases

Corps seeking public comment on proposed 30-year plan for Willamette Valley System

PORTLAND DISTRICT, U.S. ARMY CORPS OF ENGINEERS
Published Dec. 2, 2022
An aerial photograph shows a concrete dam from above, and a lake behind the dam, in a valley with green grass and hills of evergreen trees on a sunny, clear day with a perfectly blue sky.

Cottage Grove Dam and Reservoir sits on the Coast Fork of the Willamette River, south of Eugene, Oregon. Cottage Grove is one 13 dams and reservoirs across the Willamette Valley System whose operation and maintenance are being evaluated by the Corps as part of its Environment Impact Statement process.


UPDATE: The Corps has officially extended this public comment period from Jan. 19 to Feb. 23.

PORTLAND, Ore. – The U.S. Army Corps of Engineers’ Portland District (Corps) is asking for public feedback now through Jan. 19 on its proposed 30-year plan for the operation and maintenance of its system of 13 dams and reservoirs across the Willamette River Basin.

The plan, referred to as a Draft Programmatic Environmental Impact Statement, details seven potential courses of action—including one most preferred by the Corps—and essentially lays out a long-term path for achieving the congressionally authorized purposes of the Corps’ Willamette Valley System while improving conditions for endangered fish.
Learn more and download the EIS

The document outlines changes the Corps can make to accommodate newer environmental conditions—most notably, the Endangered Species Act listing of Upper Willamette River Chinook salmon and steelhead—that have risen since the Corps’ last Willamette Valley EIS in 1980.

Each of the Corps’ seven alternatives proposes a separate approach to managing the system at various dam sites by employing operational measures, like lowering water levels in a reservoir, or structural changes, such as building a temperature control tower to help make water conditions downstream ideal for fish (or a combination of the two). Ultimately, the alternatives explore slightly different ways the Corps can satisfy the purposes of the system while also improving fish passage and water quality, the primary determinants of fish survival across the basin.

“The critical water that we manage with this system touches so many different needs and so many different people within our communities across the valley,” said Erik Petersen, the Corps’ Willamette Valley operations project manager. “And this document will determine our course in managing that system and appropriately meeting all those needs for the next 30 plus years. It’s a very big deal, so hearing from as many members of the public as possible is critical to the decision-making process.”

The Corps is currently welcoming feedback from the public via comments submitted by email to willamette.eis@usace.army.mil or in writing to the following address:

U.S. Army Corps of Engineers
Attn: CENWP-PME-E / Willamette EIS
P.O. Box 2946
Portland, OR 97208-2946

The Corps is also holding a series of virtual and face-to-face open house meetings in the coming weeks. Members of the public are encouraged to attend these to learn more about the EIS and share their input:

Virtual Public Meetings
• Tuesday, Dec. 6, 5:30-6:30 p.m.
• Thursday, Dec. 8, noon to 1 p.m.

Join by WebEx or phone using the following information:
Login link: https://usace1.webex.com/meet/WVS-DEIS_PublicMeeting
U.S. Toll Free: 1-844-800-2712
Access Code: 1998 06 7062

In-Person Public Meetings
• Monday, Jan. 9, 6-8 p.m. – Springfield, OR
• Tuesday, Jan. 10, 12:30-2:30 p.m. – Eugene, OR
• Wednesday, Jan. 11, 6-8 p.m. – Sweet Home, OR
• Thursday, Jan. 12, noon to 2 p.m. – Stayton, OR
(Exact venues for the face-to-face meetings are still being arranged. Those addresses will be reflected in this release and on our EIS webpage as soon as they're set.)

Following the 55-day public comment period ending Jan. 19, the Corps will enter a review period and then respond to comments in its final EIS in late summer 2024. The final EIS will also provide the analysis upon which the Corps will make its decision.

For more information, and to view and download the draft EIS, visit https://www.nwp.usace.army.mil/Locations/Willamette-Valley/System-Evaluation-EIS/.

Background: The Corps operates and maintains 13 multipurpose dams, reservoirs, and hatchery programs across Oregon's Willamette River Basin, started in 1940 and completed in 1969. Each dam contributes to a water resource management system that provides flood risk management, hydropower, water quality improvement, irrigation, fish and wildlife habitat, and recreation for the Willamette River and many of its tributaries. This includes an estimated savings to the region of more than $900 million annually in averted flood damages. The Willamette Valley System also comprises eight Corps-owned hydropower dams, which can provide enough power to service nearly 300,000 homes (500 megawatts). In addition, the Corps manages more than 50 developed recreation sites across the valley.

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Contact
Chris Gaylord
503-808-4510
christopher.m.gaylord@usace.army.mil

Release no. 22-050

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