US Army Corps of Engineers

Ice Harbor Dam

August 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 2552 106 55 23.30 23.90 14.20 9.00 437.99 437.94 339.16 98.78
2 3971 165 55 31.90 32.40 22.50 9.00 437.87 438.06 340.01 98.05
3 3185 133 55 27.50 27.50 17.70 9.00 437.86 438.01 339.14 98.87
4 2747 114 55 26.00 24.80 15.20 9.00 438.14 438.06 338.77 99.29
5 2942 123 55 24.60 26.00 16.30 9.00 437.80 437.96 339.03 98.93
6 3281 137 55 28.10 28.20 18.30 9.00 437.79 437.91 339.26 98.65
7 2994 125 55 27.20 26.20 16.60 9.00 438.05 437.96 339.01 98.95
8 3264 136 55 25.80 27.80 18.20 9.00 437.54 438.01 338.93 99.08
9 3134 131 53 30.30 27.30 17.50 9.00 438.27 437.85 339.52 98.33
10 2589 108 55 23.60 24.20 14.40 9.00 438.12 438.10 339.55 98.55
11 3715 155 55 29.50 30.70 21.10 9.00 437.83 437.94 340.34 97.60
12 2961 123 55 26.10 26.40 16.60 9.00 437.74 437.87 339.99 97.88
13 2279 95 55 24.20 22.30 12.70 9.00 438.20 437.75 339.70 98.05
14 2966 124 55 25.40 26.70 16.80 9.00 437.84 438.03 339.82 98.21
15 2268 94 55 27.20 22.30 12.60 9.00 439.03 438.30 339.58 98.72
16 2893 121 55 26.50 26.00 16.00 9.10 439.14 439.25 339.88 99.37
17 3064 128 54 27.90 26.70 16.90 9.10 439.43 439.35 339.88 99.47
18 2299 96 55 20.60 22.30 12.60 9.00 439.03 439.40 339.76 99.64
19 2286 95 56 22.10 22.10 12.50 9.00 439.03 439.00 339.13 99.87
20 2305 96 56 23.30 22.30 12.70 9.00 439.27 439.14 339.03 100.11
21 2708 113 56 23.80 24.50 14.80 9.00 439.10 439.27 338.77 100.50
22 2765 115 56 22.30 24.90 15.20 9.00 438.50 439.01 339.21 99.80
23 2492 104 56 23.80 23.40 13.70 9.00 438.59 438.69 338.97 99.72
24 2294 96 56 21.00 22.30 12.60 9.00 438.27 438.47 338.78 99.69
25 2290 95 56 22.00 22.10 12.60 9.00 438.22 438.15 338.77 99.38
26 2274 95 58 22.10 22.30 12.60 9.00 438.18 438.28 339.34 98.94
27 2272 95 56 25.10 22.20 12.60 9.00 438.88 438.37 339.46 98.91
28 2858 119 56 24.00 25.70 15.80 9.10 438.48 438.69 339.49 99.20
29 2357 98 56 24.90 22.70 12.90 9.10 438.99 438.72 339.34 99.38
30 2306 96 56 24.30 22.40 12.60 9.10 439.44 439.11 339.21 99.90
31 2798 117 55 25.50 25.20 15.40 9.00 439.53 439.39 339.58 99.81
TOT 85107  1717        
AVG 2745 114 55 25.16 24.96 15.23 9.02 438.46 438.45 339.37 99.08
MAX 3971   31.90 32.40 22.50 9.10 439.53 439.40 340.34 100.50
MIN 2268   20.60 22.10 12.50 9.00 437.54 437.75 338.77 97.60
BUILDING STRONG®