US Army Corps of Engineers

Ice Harbor Dam

Tuesday September 15, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.30 12.80 0.00 439.42 338.23 101.19 338.36
2 13.20 12.70 0.00 439.39 338.41 100.98 338.56
3 13.20 12.70 0.00 439.46 338.32 101.14 338.54
4 14.60 12.60 0.00 439.51 338.43 101.08 338.53
5 13.00 12.40 0.10 439.33 338.35 100.98 338.72
6 22.50 12.40 9.50 439.33 338.51 100.82 339.36
7 22.80 12.60 9.70 439.40 338.49 100.91 339.23
8 23.00 12.80 9.70 439.35 338.49 100.86 339.12
9 23.10 12.90 9.70 439.45 338.47 100.98 339.25
10 23.20 12.90 9.80 439.43 338.59 100.84 339.23
11 23.10 12.90 9.70 439.46 338.52 100.94 339.31
12 24.70 12.90 9.80 439.60 338.99 100.61 339.77
13 23.20 12.90 9.80 439.54 338.67 100.87 339.46
14 23.20 12.90 9.80 439.46 338.67 100.79 339.47
15 23.30 13.00 9.80 439.48 338.71 100.77 339.45
16 23.30 13.00 9.80 439.57 338.79 100.78 339.51
17 24.30 14.30 9.50 439.47 339.56 99.91 339.74
18 26.80 26.30 0.00 439.41 339.87 99.54 339.95
19 26.90 26.40 0.00 439.54 339.76 99.78 339.80
20 28.40 26.40 0.00 439.51 339.81 99.70 339.90
21 26.50 26.00 0.00 439.46 339.83 99.63 339.85
22 26.20 25.70 0.00 439.52 339.79 99.73 339.82
23 26.00 25.50 0.00 439.45 339.73 99.72 339.80
24 26.00 25.50 0.00 439.19 339.74 99.45 339.79
AVG 22.24 16.69 4.86 439.45 338.95 100.50 339.35
MAX 28.40 26.40 9.80 439.60 339.87 101.19 339.95
MIN 13.00 12.40 0.00 439.19 338.23 99.45 338.36
BUILDING STRONG®