US Army Corps of Engineers

Ice Harbor Dam

Thursday June 4, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 52.40 12.80 39.10 437.52 341.12 96.40 341.74
2 52.50 12.80 39.20 437.55 341.05 96.50 341.70
3 52.20 12.80 38.90 437.52 341.12 96.40 341.70
4 52.20 12.80 39.00 437.57 341.08 96.49 341.77
5 53.90 12.90 39.10 437.61 341.25 96.36 341.91
6 52.40 12.80 39.10 437.62 341.15 96.47 341.84
7 52.40 12.80 39.10 437.60 341.09 96.51 341.75
8 52.40 12.70 39.10 437.63 341.24 96.39 341.87
9 50.50 12.80 37.30 437.60 341.17 96.43 341.81
10 50.40 12.80 37.10 437.63 341.20 96.43 341.88
11 50.40 12.80 37.10 437.66 341.24 96.42 341.85
12 50.40 12.80 37.10 437.64 341.24 96.40 341.95
13 50.40 12.80 37.10 437.67 341.25 96.42 341.95
14 50.40 12.80 37.10 437.69 341.32 96.37 342.03
15 50.50 12.90 37.20 437.68 341.36 96.32 342.11
16 50.50 12.80 37.20 437.70 341.29 96.41 342.00
17 50.50 12.80 37.20 437.72 341.35 96.37 342.09
18 50.40 12.80 37.10 437.71 341.33 96.38 342.10
19 50.40 12.80 37.00 437.73 341.44 96.29 342.12
20 50.50 12.90 37.10 437.76 341.55 96.21 342.06
21 51.90 12.90 37.00 437.68 341.59 96.09 342.17
22 50.50 12.90 37.10 437.72 341.54 96.18 342.19
23 50.40 12.90 37.10 437.72 341.72 96.00 342.42
24 50.40 12.90 37.10 437.76 341.71 96.05 342.31
AVG 51.20 12.83 37.77 437.65 341.31 96.35 341.97
MAX 53.90 12.90 39.20 437.76 341.72 96.51 342.42
MIN 50.40 12.70 37.00 437.52 341.05 96.00 341.70
BUILDING STRONG®