US Army Corps of Engineers

Ice Harbor Dam

Thursday April 9, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 59.50 13.00 46.00 437.71 341.30 96.41 342.04
2 59.50 13.00 46.00 437.83 341.31 96.52 342.05
3 59.20 12.90 45.90 437.75 341.36 96.39 341.98
4 59.30 12.90 45.90 437.66 341.29 96.37 342.02
5 60.90 13.00 45.90 437.69 341.37 96.32 341.98
6 59.40 13.00 45.90 437.71 341.30 96.41 342.04
7 59.50 13.00 46.00 437.73 341.28 96.45 341.99
8 61.10 12.90 46.10 437.84 341.35 96.49 342.22
9 59.60 12.90 46.20 437.88 341.27 96.61 341.96
10 59.80 13.00 46.30 437.98 341.45 96.53 342.02
11 59.80 12.90 46.30 438.00 341.28 96.72 341.96
12 59.80 13.00 46.40 438.04 341.30 96.74 341.98
13 59.80 13.00 46.40 438.10 341.44 96.66 341.95
14 65.30 12.90 51.90 438.07 341.70 96.37 342.50
15 66.90 12.90 52.10 438.21 341.85 96.36 342.62
16 65.40 12.80 52.10 438.18 341.77 96.41 342.49
17 65.40 12.90 52.10 438.16 341.79 96.37 342.71
18 65.40 12.90 52.10 438.20 341.81 96.39 342.54
19 65.30 12.80 52.00 438.20 341.79 96.41 342.72
20 65.50 12.80 52.20 438.19 341.87 96.32 342.77
21 67.20 12.80 53.90 438.24 342.03 96.21 342.69
22 68.90 12.90 54.00 438.23 342.06 96.17 342.84
23 67.40 12.90 54.00 438.22 342.14 96.08 342.73
24 67.30 12.80 54.00 438.23 342.06 96.17 342.80
AVG 62.80 12.91 49.15 438.00 341.59 96.41 342.32
MAX 68.90 13.00 54.00 438.24 342.14 96.74 342.84
MIN 59.20 12.80 45.90 437.66 341.27 96.08 341.95