US Army Corps of Engineers

Ice Harbor Dam

September 2021

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 3049 127 49 18.10 18.00 17.20 0.00 438.56 438.86 339.12 99.74
2 3488 145 55 20.70 20.60 19.80 0.00 438.59 438.49 339.54 98.95
3 3483 145 54 20.90 20.50 19.70 0.00 438.69 438.70 339.77 98.93
4 3485 145 54 20.80 20.60 19.70 0.00 438.73 438.73 339.85 98.88
5 3770 157 55 23.00 22.20 21.40 0.00 438.93 438.93 339.98 98.95
6 4389 183 54 25.50 25.80 25.00 0.00 438.88 438.74 340.16 98.58
7 3929 164 55 22.10 23.10 22.50 0.00 438.61 438.66 340.04 98.62
8 2875 120 55 17.40 17.20 16.40 0.00 438.65 438.62 339.66 98.96
9 2899 121 55 17.20 17.50 16.60 0.00 438.58 439.02 339.84 99.18
10 2052 85 55 15.60 12.30 11.80 0.00 439.39 439.01 339.53 99.48
11 3099 129 55 17.80 18.10 17.40 0.00 439.32 439.42 339.66 99.76
12 2719 113 55 15.10 16.10 15.40 0.00 439.07 439.37 339.77 99.60
13 3629 151 55 19.90 21.30 20.60 0.00 438.74 439.09 340.04 99.05
14 3335 139 55 20.80 19.60 18.80 0.00 439.03 438.91 339.60 99.31
15 2775 116 55 15.50 16.50 15.70 0.00 438.78 438.91 339.33 99.58
16 3544 148 55 21.20 20.50 19.90 0.00 438.96 439.02 339.67 99.35
17 3098 129 55 18.30 18.30 17.50 0.00 438.97 439.06 339.74 99.32
18 2837 118 54 17.60 16.70 16.00 0.00 439.18 439.14 339.66 99.48
19 2774 116 54 17.30 16.30 15.70 0.00 439.41 439.25 339.65 99.60
20 16.50 18.20 17.60 0.00 439.02 439.18 339.37 99.81
21 21.50 21.00 20.40 0.00 439.14 439.24 339.10 100.14
22 17.60 18.80 18.10 0.00 438.85 438.98 339.02 99.96
23 23.00 23.60 22.90 0.00 438.70 439.06 339.47 99.59
24 22.80 21.40 20.70 0.00 439.03 439.10 339.43 99.67
25 14.50 15.00 14.40 0.00 438.90 439.05 339.01 100.04
26 17.20 15.40 14.70 0.00 439.33 439.16 339.18 99.98
27
28
29
30
TOT 61229  1035        
AVG 3223 134 54 19.15 19.02 18.30 0.00 438.92 438.99 339.58 99.40
MAX 4389   25.50 25.80 25.00 0.00 439.41 439.42 340.16 100.14
MIN 2052   14.50 12.30 11.80 0.00 438.56 438.49 339.01 98.58
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