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 2306 96 56 15.50 14.80 12.60 1.50 438.69 438.66 338.93 99.73
18 2592 108 56 15.80 16.40 14.30 1.50 438.56 438.63 338.92 99.71
19 2276 95 55 15.90 14.70 12.50 1.40 438.85 438.62 339.06 99.56
20 2868 120 56 16.30 18.00 15.80 1.50 438.45 438.84 339.33 99.51
21 2714 113 55 18.60 17.10 15.00 1.50 438.80 438.59 339.40 99.19
22 2658 111 57 16.50 17.00 14.80 1.50 438.67 438.52 339.47 99.05
23 2724 113 57 17.60 17.20 15.00 1.50 438.76 438.71 339.19 99.52
24 2300 96 57 16.20 14.70 12.60 1.50 439.13 438.89 338.99 99.90
25 2310 96 57 14.70 14.90 12.60 1.60 439.06 439.06 339.09 99.97
26 2613 109 57 16.00 16.70 14.40 1.60 438.90 439.01 339.31 99.70
27 2960 123 58 19.70 18.50 16.30 1.60 439.19 439.15 339.43 99.72
28 19.50 21.00 18.70 1.50 438.83 438.90 339.70 99.20
29 16.10 17.20 15.10 1.50 438.58 438.61 339.56 99.05
30 17.90 16.90 14.80 1.50 438.82 438.58 339.06 99.52
31 18.80 18.50 16.50 1.50 438.88 438.75 338.97 99.78
TOT 76672  1502        
AVG 2840 118 56 17.90 17.94 15.71 1.54 438.91 438.89 339.27 99.61
MAX 3835   22.20 23.50 21.20 1.60 439.39 439.25 339.81 100.09
MIN 2276   14.70 14.70 12.50 1.40 438.45 438.52 338.92 99.05
BUILDING STRONG®