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Hells Canyon River Flows

Provisional and subject to revision

Snake R below Hells Canyon Dam


Hells Canyon Outflow for Past Four Days

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Hells Canyon Outflow Forecast

Updated Hourly
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Actual operations may differ from the estimates given below.


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Brownlee Reservoir Three-Day Average Inflow:

  • 09/21/2017 13459 cfs


Actual operations may differ depending on system reliability needs.

Additional flow information is available on flow monitors located at the Hells Canyon Visitors Center, Pittsburg Landing, Cache Creek, Heller Bar, Hells Gate Marina, and at the US Forest Service Hells Canyon National Recreation Area office in Clarkston, Washington.

The 12-month period between Oct. 1st and Sept. 30th. For details, click on the word.

The status of data subject to revision upon review and correction by Idaho Power. For details, click on the word.

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