US Army Corps of Engineers

Ice Harbor Dam

October 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 2920 122 55 18.10 18.40 16.10 1.60 439.16 439.24 339.68 99.56
2 2647 110 55 15.70 16.90 14.50 1.60 438.88 439.09 339.35 99.74
3 2356 98 54 15.90 15.00 12.90 1.50 439.08 438.92 339.48 99.44
4 2855 119 54 16.50 17.90 15.70 1.60 438.77 438.93 339.45 99.48
5 2838 118 54 19.60 17.80 15.60 1.50 439.17 439.01 339.22 99.79
6 3333 139 56 19.70 20.70 18.30 1.60 438.94 439.05 339.22 99.83
7 3318 138 55 21.60 20.50 18.20 1.60 439.20 439.02 338.96 100.06
8 3835 160 55 22.20 23.50 21.20 1.50 438.87 439.00 338.96 100.04
9 2865 119 55 18.70 18.00 15.80 1.50 439.04 438.76 338.97 99.79
10 3357 140 54 20.80 20.60 18.40 1.60 439.08 439.22 339.13 100.09
11 3319 138 55 21.80 20.50 18.30 1.60 439.39 439.25 339.58 99.67
12 3763 157 55 21.90 23.50 20.90 1.60 439.01 439.00 339.81 99.19
13 2943 123 56 18.80 18.60 16.20 1.60 439.07 438.96 339.76 99.20
14 2915 121 56 18.10 18.30 16.10 1.60 438.99 438.92 339.49 99.43
15 2363 98 56 15.00 15.10 12.90 1.60 438.96 438.99 339.04 99.95
16 2723 113 56 15.30 17.20 15.00 1.50 438.51 438.70 339.01 99.69
17 15.50 14.80 12.60 1.50 438.69 438.66 338.93 99.73
18 15.80 16.40 14.30 1.50 438.56 438.63 338.92 99.71
19 15.90 14.70 12.50 1.40 438.85 438.62 339.06 99.56
20 16.30 18.00 15.80 1.50 438.45 438.84 339.33 99.51
21 18.60 17.10 15.00 1.50 438.80 438.59 339.40 99.19
22 16.50 17.00 14.80 1.50 438.67 438.52 339.47 99.05
23 17.60 17.20 15.00 1.50 438.76 438.71 339.19 99.52
24
25
26
27
28
29
30
31
TOT 48350  882        
AVG 3022 126 55 18.08 18.16 15.92 1.54 438.91 438.90 339.28 99.62
MAX 3835   22.20 23.50 21.20 1.60 439.39 439.25 339.81 100.09
MIN 2356   15.00 14.70 12.50 1.40 438.45 438.52 338.92 99.05
BUILDING STRONG®