US Army Corps of Engineers

Ice Harbor Dam

Sunday April 12, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 70.50 13.00 56.90 437.87 342.55 95.32 343.28
2 70.70 13.20 57.00 437.98 342.55 95.43 343.33
3 70.70 13.20 57.00 437.90 342.51 95.39 343.22
4 70.60 13.20 57.00 437.91 342.54 95.37 343.32
5 70.70 13.20 57.00 437.92 342.57 95.35 343.21
6 70.80 13.20 57.10 437.93 342.60 95.33 343.28
7 70.70 13.10 57.10 438.00 342.53 95.47 343.21
8 70.80 13.20 57.10 438.01 342.52 95.49 343.25
9 70.60 13.20 57.00 438.03 342.49 95.54 343.24
10 70.60 13.20 57.00 438.05 342.50 95.55 343.23
11 70.70 13.20 57.00 438.06 342.64 95.42 343.27
12 72.20 13.20 57.00 438.03 342.59 95.44 343.42
13 70.70 13.10 57.00 438.03 342.54 95.49 343.22
14 70.70 13.20 57.00 438.03 342.53 95.50 343.24
15 70.60 13.20 57.00 437.92 342.46 95.46 343.23
16 72.20 13.20 56.90 437.94 342.55 95.39 343.31
17 70.70 13.20 57.00 438.01 342.57 95.44 343.27
18 72.10 13.10 56.90 437.97 342.70 95.27 343.40
19 70.70 13.20 57.00 438.01 342.53 95.48 343.28
20 70.60 13.10 57.00 438.06 342.57 95.49 343.30
21 70.60 13.10 57.00 438.07 342.59 95.48 343.30
22 70.70 13.10 57.00 438.10 342.58 95.52 343.33
23 70.70 13.00 57.10 438.09 342.60 95.49 343.30
24 71.10 13.00 57.60 438.07 342.79 95.28 343.44
AVG 70.88 13.15 57.03 438.00 342.57 95.43 343.29
MAX 72.20 13.20 57.60 438.10 342.79 95.55 343.44
MIN 70.50 13.00 56.90 437.87 342.46 95.27 343.21
BUILDING STRONG®