US Army Corps of Engineers

The Dalles Dam

September 2026

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 85.80 84.20 78.40 0.00 159.51 159.53 76.96 82.57
2 86.10 86.20 80.40 0.00 159.50 159.43 76.75 82.68
3 84.60 85.20 79.80 0.00 159.41 159.64 76.84 82.80
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30
TOT           
AVG    85.50 85.20 79.53 0.00 159.47 159.53 76.85 82.68
MAX    86.10 86.20 80.40 0.00 159.51 159.64 76.96 82.80
MIN    84.60 84.20 78.40 0.00 159.41 159.43 76.75 82.57