Willamette River Basin Project Supplemental Biological Assessment

July 11, 2008, NOAA Fisheries released a biological opinion (BiOp) addressing the effect of the operation of 13 dams on Willamette River tributaries and 42 miles of levees on 13 populations of salmon and steelhead protected by the federal Endangered Species Act (ESA).

The Willamette BiOp covers actions through 2023 and strengthens the initial proposal from the U.S. Army Corps of Engineers, Bonneville Power Administration and the U.S. Bureau of Reclamation (Action Agencies) to provide adequate protection for two ESA-listed species on the Willamette River: winter steelhead and chinook salmon.

The additional measures (in a Reasonable and Prudent Alternative), combined with the Action Agencies' Proposed Action, will allow for survival of the species with an adequate potential for recovery and avoid modification of critical habitat.

Documents
04/2009 Fact Sheet: The Willamette River Basin Project Biological Opinion and Reclamation’s Water Marketing Program updated PDF 46 kb
07/2009 Fact Sheet: The Willamette River Basin Project Biological Opinion and Reclamation’s Water Marketing Program PDF 30 kb
07/2008 Willamette Project Supplemental Biological Assessment HTML
07/2008 NOAA Fisheries Biological Opinion HTML

Contact

William Parks
Contracts and Repayments
(208) 378-5344
wparks@usbr.gov

Bureau of Reclamation
Pacific Northwest Regional Office
1150 North Curtis Road, Suite 100
Boise, Idaho 83706-1234

Candace McKinley
cmckinley@usbr.gov
(509) 573-8020

Bureau of Reclamation
Columbia-Cascades Area Office
1917 Marsh Road
Yakima WA 98901-2058


Last Updated: 10/11/23