US Army Corps of Engineers

The Dalles Dam

August 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 9444 394 48 115.50 114.50 63.70 45.00 159.18 158.85 77.44 81.41
2 9465 394 48 114.20 114.40 63.60 45.00 159.15 159.06 77.35 81.71
3 9066 378 48 112.10 111.40 60.60 45.00 159.24 159.31 77.18 82.13
4 9392 391 48 111.90 113.80 63.00 45.00 158.92 158.84 76.91 81.93
5 9993 416 48 117.70 117.60 66.80 45.00 158.91 159.01 76.87 82.14
6 10245 427 48 122.90 121.30 68.50 47.00 159.23 159.08 76.92 82.16
7 9821 409 48 117.20 121.20 66.40 49.00 158.46 158.74 77.29 81.45
8 9157 382 48 116.50 117.10 62.30 49.00 158.31 158.09 77.33 80.76
9 9108 380 48 114.80 114.70 61.90 47.00 158.35 158.17 77.32 80.85
10 8312 346 48 110.00 108.10 56.30 46.00 158.74 158.48 77.22 81.26
11 8860 369 48 109.00 108.50 59.70 43.00 158.79 158.35 76.83 81.52
12 8805 367 48 110.20 108.20 59.40 43.00 159.18 158.49 76.95 81.54
13 8740 364 48 107.20 107.60 58.80 43.00 159.07 158.99 77.27 81.72
14 8311 346 48 102.30 104.80 56.00 43.00 158.60 158.82 77.18 81.64
15 9481 395 48 112.10 111.90 64.10 42.00 158.69 158.62 77.32 81.30
16 8097 337 48 109.90 105.30 54.50 45.00 159.48 158.67 77.15 81.52
17 8834 368 48 105.30 107.00 59.10 42.00 159.18 159.15 77.09 82.06
18 105.50 99.10 54.40 38.90 159.65 158.92 77.20 81.72
19 104.90 106.60 60.40 40.30 159.36 159.47 77.24 82.23
20 108.90 108.10 60.30 42.00 159.48 158.88 77.17 81.71
21 106.80 109.60 60.80 43.00 159.00 158.78 77.11 81.67
22 106.50 105.70 55.90 44.00 159.14 158.36 77.02 81.34
23 94.40 90.70 52.90 31.90 159.79 159.18 76.57 82.61
24 99.60 102.70 60.90 36.00 159.22 159.32 76.19 83.13
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TOT155131  816        
AVG 9125 380 48 109.81 109.58 60.43 43.34 159.05 158.82 77.09 81.73
MAX 10245   122.90 121.30 68.50 49.00 159.79 159.47 77.44 83.13
MIN 8097   94.40 90.70 52.90 31.90 158.31 158.09 76.19 80.76