US Army Corps of Engineers

The Dalles Dam

June 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 19487 812 48 226.40 230.60 134.90 89.90 157.49 158.24 79.14 79.10
2 19657 819 47 231.90 234.00 136.20 92.00 157.06 158.07 78.88 79.19
3 19032 793 48 233.40 231.20 131.50 94.00 157.43 158.34 79.07 79.27
4 15077 628 48 198.80 202.30 104.00 92.50 156.80 157.56 77.75 79.81
5 20290 845 48 232.80 227.20 140.40 81.00 157.86 157.67 78.54 79.13
6 16770 699 48 211.20 211.20 115.40 90.00 157.85 158.13 78.52 79.61
7 17207 717 48 210.50 207.70 117.90 84.00 158.37 158.86 78.86 80.00
8 19357 807 48 219.30 221.90 133.10 83.00 157.85 158.82 79.21 79.61
9 15340 639 48 200.50 199.30 104.50 89.00 158.10 158.65 78.34 80.31
10 14364 598 48 182.20 184.00 98.10 80.20 157.77 158.57 78.32 80.25
11 15845 660 48 193.20 186.70 107.40 73.50 158.99 158.99 78.35 80.64
12 15438 643 48 182.60 184.60 104.30 74.50 158.57 159.22 78.25 80.97
13 13994 583 48 168.40 174.70 94.40 74.50 157.41 158.74 77.43 81.31
14 13742 573 48 169.90 167.60 92.80 69.00 157.83 158.51 77.26 81.25
15 16803 700 48 189.00 186.10 113.30 67.00 158.34 158.56 77.31 81.25
16 13458 561 48 169.00 170.70 90.90 74.00 158.05 158.29 76.92 81.37
17 14409 600 48 171.90 170.90 97.10 68.00 158.22 158.39 77.15 81.24
18 14476 603 48 172.10 171.40 97.60 68.00 158.33 158.34 76.99 81.35
19 12057 502 48 157.30 154.20 80.40 68.00 158.95 158.56 76.23 82.33
20 10086 420 48 132.60 135.30 67.40 62.00 158.47 158.59 76.41 82.18
21 12844 535 48 149.70 145.30 85.40 54.10 159.25 159.19 76.81 82.38
22 10930 455 48 134.30 136.80 73.00 58.00 158.80 159.07 76.79 82.28
23 151.40 149.00 88.20 55.00 159.25 159.13 77.05 82.08
24 173.00 176.60 110.80 60.00 158.59 158.85 78.01 80.84
25 167.00 164.20 87.50 70.90 159.09 158.92 77.52 81.40
26 151.40 150.80 79.80 65.30 159.18 159.30 77.13 82.17
27 138.30 143.50 77.70 60.10 158.22 158.54 77.32 81.22
28 121.70 120.40 57.60 57.00 158.47 158.51 77.25 81.26
29 125.10 123.70 69.90 48.00 158.71 158.66 77.30 81.36
30
TOT340663  1055        
AVG 15485 645 48 178.10 178.00 99.71 72.50 158.25 158.60 77.73 80.87
MAX 20290   233.40 234.00 140.40 94.00 159.25 159.30 79.21 82.38
MIN 10086   121.70 120.40 57.60 48.00 156.80 157.56 76.23 79.10
BUILDING STRONG®