US Army Corps of Engineers

The Dalles Dam

December 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 17879 745 48 118.40 124.00 118.20 0.00 157.42 158.32 75.35 82.97
2 17576 732 48 121.70 123.60 117.70 0.00 157.08 157.98 76.15 81.83
3 122.80 116.60 110.70 0.00 158.27 157.79 76.08 81.71
4 131.20 128.50 122.70 0.00 158.78 158.79 76.01 82.78
5 135.40 134.30 128.50 0.00 159.00 158.97 75.86 83.11
6 142.60 143.60 137.80 0.00 158.79 158.75 76.73 82.02
7 140.60 141.70 135.80 0.00 158.55 158.93 77.16 81.77
8 134.50 135.20 129.40 0.00 158.42 159.00 77.04 81.96
9 131.50 127.80 121.90 0.00 159.12 158.75 77.00 81.75
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TOT 35455  96        
AVG 17728 739 48 130.97 130.59 124.74 0.00 158.38 158.59 76.38 82.21
MAX 17879   142.60 143.60 137.80 0.00 159.12 159.00 77.16 83.11
MIN 17576   118.40 116.60 110.70 0.00 157.08 157.79 75.35 81.71