Managers Kept Lower Granite Reservoir Cool During Hot Water Year, But ESA-Listed Sockeye Slammed Farther Downstream; ‘Smoking Gun’

In an exceptionally low flow and warm water year, Idaho’s Dworshak Dam water in 2021 was creatively preserved and used to help keep water cool downstream to aid salmon and steelhead migrating in the river at Lower Granite Dam on the lower Snake River.

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