Deschutes River Spring Chinook Above Pelton-Round Butte Dams; Good Return Results For Juveniles From Reintroduced Fish

June 20th, 2019

Although the run of spring chinook into the Deschutes River is one of the lowest in years, as it has been throughout the Columbia River basin, the proportion of the Deschutes run that originated as reintroduced fish upstream of the Pelton Round Butte Hydroelectric Project near Madras, Oregon is one of the best in years, according to Portland General Electric.

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Upper Columbia Tribes’ Phase I Report On Salmon Reintroduction/Fish Passage Above Chief Joseph/Grand Coulee Dams: Enough Upstream Habitat To Support Over 17,000 Spawning Chinook, Steelhead; Larger Numbers Of Sockeye

June 13th, 2019

There is plenty of habitat available for reintroduction of spawning and rearing anadromous salmon and steelhead upstream of Chief Joseph and Grand Coulee dams, according to a recently completed report by upper Columbia River tribes.

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Water Supply: Freshet Had Basin’s Southern Tier Rivers Roaring, Northern Tier Below Normal; April-Sept At Dalles Dam Forecasted 94 Percent Of Normal

June 11th, 2019

The Columbia River Basin is in the midst of a robust runoff period that will level out with near-average flows on the lower Columbia through September, according to the last water supply briefing of the year from the Northwest River Forecast Center in Portland.

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Changed Spill Pattern At Little Goose Dam Sees Positive Results For Adult Salmon Passage; Some Concern About Trade-Off For Juveniles Moving Downstream

June 9th, 2019

The number of adult spring chinook passing Little Goose Dam on the lower Snake River has picked up, largely due to a continuous 8-hour reduced spill regime requested last week by salmon managers of the interagency Technical Management Team.

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Details On Proposed Detroit Dam Water Temperature Control Tower, Fish Passage Facility To Boost ESA-Listed Steelhead, Spring Chinook

May 30th, 2019

Responding to the reasonable and prudent alternative outlined in NOAA Fisheries’ 2008 biological opinion for federal Willamette Valley dams, the U.S. Army Corps of Engineers last week proposed to build a selective withdrawal structure at Detroit Dam at a cost of about $100 to $200 million.The SWS would provide water temperature control downstream of Detroit and Big Cliff dams on the North Santiam River and it would provide downstream juvenile fish passage. The Corps would continue to transport adult chinook salmon and steelhead upstream of both dams where they can spawn naturally.

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States Approve Water Quality Plan For Hells Canyon Complex; Includes Lowering Water Temperatures For Downstream Salmon Spawning

May 30th, 2019

Idaho Power has taken a significant step toward a new federal license for its largest hydroelectric project with the states of Idaho and Oregon certifying the company’s plan for meeting water quality standards in the Snake River as part of its operation of three dams in Hells Canyon.

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