US Army Corps of Engineers

Ice Harbor Dam

Wednesday September 16, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 25.80 25.30 0.00 439.16 339.68 99.48 339.80
2 13.30 12.80 0.00 439.20 338.57 100.63 338.75
3 13.10 12.60 0.00 439.15 338.82 100.33 338.99
4 13.10 12.60 0.00 439.21 338.77 100.44 338.93
5 13.10 12.60 0.00 439.04 338.77 100.27 338.93
6 22.20 12.70 9.00 439.19 338.75 100.44 339.59
7 22.70 12.60 9.60 439.37 338.58 100.79 339.34
8 23.10 13.10 9.50 439.11 338.81 100.30 339.36
9 23.00 12.90 9.60 439.26 338.85 100.41 339.42
10 24.50 12.90 9.60 439.25 338.88 100.37 339.41
11 23.20 13.20 9.50 439.29 338.63 100.66 339.33
12 22.90 12.70 9.60 439.37 338.59 100.78 339.37
13 24.40 12.80 9.60 439.21 338.72 100.49 339.51
14 23.00 12.80 9.70 439.36 338.68 100.68 339.48
15 22.90 12.80 9.60 439.31 338.75 100.56 339.49
16 24.40 12.80 9.60 439.37 338.80 100.57 339.56
17 23.00 13.00 9.50 439.37 338.82 100.55 339.48
18 25.60 25.10 0.00 439.32 339.74 99.58 339.81
19 25.70 25.20 0.00 439.16 340.09 99.07 340.11
20 25.90 25.40 0.00 439.04 339.83 99.21 339.87
21 25.80 25.30 0.00 438.93 339.75 99.18 339.86
22 25.90 25.40 0.00 438.99 339.86 99.13 339.89
23 25.40 24.90 0.00 438.88 339.44 99.44 339.63
24 13.10 12.60 0.00 438.94 338.72 100.22 338.88
AVG 21.88 16.42 4.77 439.19 339.04 100.15 339.45
MAX 25.90 25.40 9.70 439.37 340.09 100.79 340.11
MIN 13.10 12.60 0.00 438.88 338.57 99.07 338.75
BUILDING STRONG®