US Army Corps of Engineers

The Dalles Dam

October 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 11169 465 48 80.50 79.60 73.80 0.00 158.99 158.88 75.71 83.17
2 10520 438 48 74.40 75.70 69.90 0.00 158.77 158.83 76.41 82.42
3 8983 374 48 67.20 66.30 59.40 0.00 158.92 158.79 75.87 82.92
4 10843 452 48 79.00 78.70 71.40 0.00 159.01 159.13 75.88 83.25
5 11298 471 48 81.30 81.60 74.60 0.00 158.97 159.20 76.04 83.16
6 12193 508 48 86.60 86.50 80.70 0.00 159.01 159.01 76.06 82.95
7 97.90 96.50 90.70 0.00 159.24 159.05 76.21 82.84
8 98.60 102.50 96.70 0.00 158.52 158.83 76.43 82.40
9 85.90 86.00 80.10 0.00 158.51 158.45 76.70 81.75
10 83.70 78.60 72.70 0.00 159.46 158.97 76.31 82.66
11 74.80 75.40 69.50 0.00 159.35 159.48 76.09 83.39
12 75.90 74.10 68.20 0.00 159.68 159.57 76.23 83.34
13 77.60 79.50 73.70 0.00 159.35 159.39 76.38 83.01
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TOT 65006  288        
AVG 10834 451 48 81.80 81.62 75.49 0.00 159.06 159.04 76.18 82.87
MAX 12193   98.60 102.50 96.70 0.00 159.68 159.57 76.70 83.39
MIN 8983   67.20 66.30 59.40 0.00 158.51 158.45 75.71 81.75