Army Corps of Engineers uses released water from Dworshak Reservoir to cool river temperature

Hot temperatures across western Idaho and southeastern Washington have been heating up river temperatures, which can be dangerous for salmon and steelhead. The Army Corps of Engineers has responded by releasing cold water from the reservoir behind Dworshak Dam. The Clearwater River, near Orofino, had a water temperature of 79.7 degrees on July 25,

By: Laura Guido

Outlets: Idaho Capital Sun

Published: July 28, 2026

Words: 655

Last Updated: 6 days, 18 hours ago


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Hot temperatures across western Idaho and southeastern Washington have been heating up river temperatures, which can be dangerous for salmon and steelhead. The Army Corps of Engineers has responded by releasing cold water from the reservoir behind Dworshak Dam.

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The Clearwater River, near Orofino, had a water temperature of 79.7 degrees on July 25, according to a press release from the Corps of Engineers. …

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