US Army Corps of Engineers

Ice Harbor Dam

Monday August 3, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 21.40 12.50 8.40 437.85 338.98 98.87 339.56
2 21.40 12.50 8.40 437.98 339.06 98.92 339.58
3 21.40 12.50 8.40 438.03 338.98 99.05 339.51
4 21.40 12.50 8.40 438.00 338.98 99.02 339.53
5 21.40 12.50 8.40 438.09 339.02 99.07 339.53
6 21.40 12.50 8.40 438.09 339.02 99.07 339.52
7 21.40 12.50 8.40 438.12 338.98 99.14 339.49
8 21.50 12.60 8.40 438.12 338.99 99.13 339.51
9 21.40 12.50 8.40 438.21 339.01 99.20 339.48
10 21.40 12.60 8.40 438.27 339.01 99.26 339.51
11 21.50 12.70 8.40 438.29 339.07 99.22 339.51
12 21.80 12.90 8.40 438.28 339.07 99.21 339.51
13 33.80 24.90 8.40 438.20 340.33 97.87 340.57
14 34.60 25.70 8.40 438.13 340.27 97.86 340.48
15 34.70 25.80 8.40 437.93 340.25 97.68 340.48
16 36.30 26.00 8.30 437.91 340.26 97.65 340.50
17 34.70 25.90 8.30 437.76 340.24 97.52 340.46
18 22.00 13.10 8.40 437.80 338.87 98.93 339.34
19 21.80 12.90 8.40 437.75 339.02 98.73 339.45
20 21.70 12.80 8.40 437.87 338.89 98.98 339.37
21 23.20 12.70 8.40 437.88 339.28 98.60 339.63
22 21.70 12.80 8.40 437.84 338.78 99.06 339.28
23 21.70 12.70 8.40 437.91 338.76 99.15 339.22
24 21.70 12.80 8.40 438.04 338.76 99.28 339.17
AVG 24.39 15.37 8.39 438.01 339.25 98.77 339.67
MAX 36.30 26.00 8.40 438.29 340.33 99.28 340.57
MIN 21.40 12.50 8.30 437.75 338.76 97.52 339.17