US Army Corps of Engineers

Ice Harbor Dam

November 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 2327 97 58 15.10 14.80 12.60 1.50 438.96 438.80 338.29 100.51
2 3019 126 60 18.40 18.20 15.80 1.50 438.97 439.01 338.47 100.54
3 3194 133 58 19.70 19.70 17.50 1.50 439.11 439.04 338.69 100.35
4 3305 138 59 18.40 20.40 18.20 1.50 438.63 438.83 339.12 99.71
5 2849 119 59 16.50 17.90 15.70 1.50 438.30 438.56 339.26 99.30
6 2785 116 58 18.80 17.70 15.40 1.40 438.70 438.39 339.20 99.19
7 2720 113 58 18.80 17.10 15.00 1.50 439.02 438.73 339.22 99.51
8 2696 112 59 18.40 17.00 14.80 1.60 439.22 439.13 339.22 99.91
9 2850 119 60 17.50 17.90 15.70 1.60 439.02 439.15 339.25 99.90
10 3093 129 60 18.40 19.20 17.00 1.60 439.25 439.19 339.17 100.02
11 3235 135 60 18.80 19.90 17.80 1.60 438.76 439.07 339.21 99.86
12 2835 118 59 18.70 17.80 15.60 1.60 438.92 438.87 339.12 99.75
13 2814 117 59 18.30 17.90 15.50 1.80 439.06 438.94 339.30 99.64
14 2807 117 59 19.10 17.50 15.40 1.60 439.18 439.16 339.02 100.14
15 3051 127 58 18.90 18.90 16.70 1.60 439.41 439.29 338.92 100.37
16 4153 173 58 21.10 23.60 23.00 0.00 438.75 439.03 339.40 99.63
17 3623 151 58 21.10 20.70 20.10 0.00 438.83 438.80 339.35 99.45
18 4026 168 59 22.90 23.10 22.40 0.00 438.60 438.74 339.47 99.27
19 4459 186 60 25.70 25.60 24.90 0.00 439.06 438.89 339.79 99.10
20 3030 126 60 18.00 17.40 16.50 0.00 438.83 439.02 339.32 99.70
21 19.90 19.90 19.20 0.00 439.08 438.89 339.54 99.35
22 20.30 21.90 21.10 0.00 438.99 438.97 339.61 99.36
23 19.60 19.10 18.40 0.00 438.84 438.77 339.26 99.51
24 18.70 19.90 19.10 0.00 438.78 438.70 339.06 99.64
25 19.90 18.50 17.70 0.00 439.00 438.74 338.78 99.96
26 22.60 22.50 21.70 0.00 438.73 438.91 339.35 99.56
27 18.40 18.10 17.40 0.00 438.89 438.98 339.32 99.66
28
29
30
1
TOT 62870  1179        
AVG 3144 131 59 19.33 19.34 17.79 0.87 438.92 438.91 339.17 99.74
MAX 4459   25.70 25.60 24.90 1.80 439.41 439.29 339.79 100.54
MIN 2327   15.10 14.80 12.60 0.00 438.30 438.39 338.29 99.10
BUILDING STRONG®