US Army Corps of Engineers

Ice Harbor Dam

Wednesday February 4, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 28.30 13.20 14.90 439.25 339.50 99.75 340.32
2 28.20 13.20 14.80 438.91 339.47 99.44 340.25
3 28.30 13.20 14.80 439.01 339.45 99.56 340.24
4 28.40 13.30 14.90 438.68 339.46 99.22 340.31
5 29.80 13.30 14.90 438.68 339.41 99.27 340.39
6 28.40 13.30 14.90 438.91 339.45 99.46 340.34
7 28.40 13.20 14.90 439.25 339.54 99.71 340.33
8 28.30 13.10 15.00 439.33 339.62 99.71 340.37
9 28.40 13.20 15.00 439.55 339.64 99.91 340.47
10 28.50 13.30 15.00 439.34 340.17 99.17 340.97
11 29.90 13.20 15.00 439.45 339.82 99.63 340.64
12 29.80 13.30 14.80 439.33 339.80 99.53 340.36
13 18.40 13.30 5.00 439.13 339.66 99.47 340.14
14 18.40 13.20 5.00 439.31 339.87 99.44 340.35
15 16.30 13.30 2.80 439.33 340.05 99.28 340.07
16 16.00 14.30 0.00 439.22 340.65 98.57 340.71
17 26.60 26.40 0.00 439.19 341.00 98.19 341.10
18 26.70 26.50 0.00 439.37 340.85 98.52 340.92
19 26.80 26.60 0.00 439.46 340.86 98.60 340.92
20 26.70 26.50 0.00 439.41 340.83 98.58 340.90
21 26.80 26.60 0.00 439.51 340.89 98.62 340.93
22 26.80 26.60 0.00 439.48 340.81 98.67 340.91
23 28.10 26.40 0.00 439.52 340.84 98.68 340.72
24 26.60 26.40 0.00 439.57 340.74 98.83 340.79
AVG 26.20 17.70 7.99 439.26 340.10 99.16 340.56
MAX 29.90 26.60 15.00 439.57 341.00 99.91 341.10
MIN 16.00 13.10 0.00 438.68 339.41 98.19 340.07
BUILDING STRONG®