US Army Corps of Engineers

Ice Harbor Dam

February 2026

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 2373 99 47 26.50 25.70 13.00 12.30 439.38 438.86 339.60 99.26
2 2437 102 48 29.90 28.10 13.20 14.50 439.81 439.37 339.87 99.50
3 2434 101 48 26.90 28.90 13.20 15.10 439.34 439.08 339.64 99.44
4 3232 135 48 27.20 26.20 17.70 8.00 439.57 439.26 340.10 99.16
5 4779 199 48 25.70 26.80 26.40 0.00 439.31 438.89 340.69 98.20
6 4793 200 48 24.70 27.00 26.50 0.00 438.77 438.86 340.69 98.17
7 4792 200 48 29.10 26.70 26.50 0.00 439.32 438.72 340.31 98.41
8 4797 200 47 27.00 26.70 26.40 0.00 439.41 438.82 340.03 98.79
9 5407 225 50 27.90 30.10 29.70 0.00 438.87 438.95 339.73 99.22
10 4914 205 49 26.80 27.90 27.20 0.20 438.63 438.32 339.71 98.61
11 4987 208 49 31.10 28.20 27.80 0.00 439.31 438.92 340.73 98.19
12 5606 234 49 34.50 34.50 31.30 2.90 439.32 439.19 341.19 98.00
13 4801 200 49 25.30 27.20 26.80 0.00 438.87 439.00 340.77 98.23
14 4319 180 48 25.00 24.30 23.90 0.00 439.04 438.94 340.59 98.35
15 28.50 27.80 27.30 0.00 439.22 439.24 340.93 98.31
16 34.60 33.70 33.30 0.00 439.42 439.19 341.22 97.97
17 37.60 41.30 40.90 0.00 438.52 438.52 342.02 96.50
18 19.10 17.90 17.30 0.00 438.83 438.31 340.20 98.11
19 36.30 30.30 29.70 0.00 439.40 438.56 341.21 97.35
20 31.10 30.50 29.80 0.00 439.53 439.21 341.09 98.12
21 27.00 28.50 28.10 0.00 439.19 439.53 340.93 98.60
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TOT 59671  676        
AVG 4262 178 48 28.66 28.49 25.52 2.52 439.19 438.94 340.54 98.40
MAX 5606   37.60 41.30 40.90 15.10 439.81 439.53 342.02 99.50
MIN 2373   19.10 17.90 13.00 0.00 438.52 438.31 339.60 96.50
BUILDING STRONG®