US Army Corps of Engineers

Ice Harbor Dam

January 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 6415 267 38 37.60 36.10 35.80 0.00 439.07 438.87 341.15 97.72
2 6778 282 38 36.70 38.10 37.80 0.00 438.71 438.78 340.83 97.95
3 8078 337 38 44.60 45.90 45.60 0.00 438.39 438.53 341.53 97.00
4 8390 350 29 47.70 48.00 47.70 0.00 438.30 438.14 341.80 96.34
5 8839 368 29 47.90 50.90 50.60 0.00 437.59 437.63 342.09 95.54
6 8127 339 28 51.30 46.30 46.00 0.00 438.81 438.07 341.55 96.52
7 7778 324 28 43.00 44.50 44.10 0.00 438.43 437.99 341.64 96.35
8 7116 296 29 44.40 40.40 40.20 0.00 439.37 438.55 341.88 96.67
9 7162 298 28 40.80 41.10 40.40 0.40 439.31 438.75 341.89 96.86
10 7244 302 29 42.90 42.40 40.70 1.40 439.42 438.96 341.71 97.25
11 7229 301 28 41.10 41.00 40.50 0.00 439.46 438.80 341.30 97.50
12 7259 302 28 41.20 40.70 40.40 0.00 439.57 439.22 341.18 98.04
13 7262 303 29 41.40 41.00 40.60 0.00 439.66 439.20 341.46 97.74
14 7250 302 31 39.90 41.20 40.70 0.00 439.35 439.22 341.95 97.27
15 7257 302 29 41.60 41.40 40.90 0.00 439.41 439.05 341.98 97.07
16 7230 301 29 40.60 41.20 40.90 0.00 439.26 438.68 342.03 96.65
17 7222 301 28 40.70 40.80 40.50 0.00 439.23 439.28 341.88 97.40
18 6694 279 28 37.90 38.10 37.80 0.00 439.19 438.64 341.77 96.87
19 6822 284 29 39.70 38.70 38.30 0.00 439.44 439.23 341.78 97.45
20 7214 301 30 38.40 41.30 40.70 0.00 438.76 438.82 342.01 96.81
21 6558 273 30 35.60 37.80 37.30 0.00 438.25 438.12 341.81 96.31
22 32.80 34.60 34.20 0.00 437.79 438.05 341.50 96.55
23 37.20 34.30 33.90 0.00 438.50 438.29 341.05 97.24
24 33.50 34.20 33.90 0.00 438.34 438.39 340.81 97.58
25 31.30 31.10 30.80 0.00 438.38 438.37 340.41 97.96
26 24.90 26.70 26.50 0.00 437.95 438.22 340.32 97.90
27 29.20 23.90 16.50 6.90 439.24 438.42 340.04 98.38
28 27.50 27.50 13.30 13.80 439.24 438.92 339.92 99.00
29
30
31
TOT153923  635        
AVG 7330 305 30 38.98 38.90 37.74 0.80 438.87 438.61 341.40 97.21
MAX 8839   51.30 50.90 50.60 13.80 439.66 439.28 342.09 99.00
MIN 6415   24.90 23.90 13.30 0.00 437.59 437.63 339.92 95.54
BUILDING STRONG®