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River fluctuations expected through winter around Rocky Reach Dam

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WENATCHEE — Potentially dangerous fluctuations in Columbia River water levels above and below Rocky Reach Dam are expected through the winter, as the Chelan County PUD contends with defects that have sidelined five of the dam’s 11 turbines.

The defects reduce the dam’s generation capacity, obliging the PUD to release more water downstream than it normally would under winter flow conditions.

The dangers could include unpredictable flows, fluctuating river levels and increased turbulence just below the dam, the PUD said…

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