US Army Corps of Engineers

Ice Harbor Dam

Thursday August 6, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 21.80 12.90 8.40 437.79 338.71 99.08 339.17
2 22.00 12.90 8.50 437.98 338.63 99.35 339.16
3 22.00 13.00 8.50 438.04 338.67 99.37 339.11
4 23.50 12.90 8.60 438.02 338.71 99.31 339.15
5 22.10 13.00 8.60 438.08 338.68 99.40 339.13
6 22.00 12.90 8.60 438.04 338.72 99.32 339.11
7 21.80 12.80 8.50 438.05 338.70 99.35 339.14
8 23.00 12.70 8.30 438.25 338.68 99.57 339.14
9 21.40 12.60 8.30 438.25 338.68 99.57 339.17
10 34.00 25.20 8.30 438.43 340.10 98.33 340.28
11 35.10 26.30 8.30 438.35 339.98 98.37 340.24
12 36.60 26.30 8.30 438.14 340.00 98.14 340.26
13 35.20 26.40 8.30 438.18 340.32 97.86 340.74
14 35.40 26.60 8.40 438.11 340.07 98.04 340.30
15 35.20 26.40 8.30 438.12 340.00 98.12 340.26
16 35.30 26.40 8.30 438.10 339.97 98.13 340.20
17 35.20 26.40 8.30 438.04 339.96 98.08 340.24
18 35.30 26.40 8.40 437.99 339.95 98.04 340.21
19 35.30 26.40 8.40 437.95 339.91 98.04 340.19
20 36.60 26.20 8.40 438.06 339.98 98.08 340.22
21 35.30 26.40 8.40 437.96 339.90 98.06 340.13
22 35.30 26.50 8.40 437.86 339.89 97.97 340.09
23 35.30 26.50 8.40 437.81 339.89 97.92 340.12
24 35.00 26.10 8.40 437.79 339.36 98.43 339.88
AVG 30.40 21.26 8.40 438.06 339.48 98.58 339.82
MAX 36.60 26.60 8.60 438.43 340.32 99.57 340.74
MIN 21.40 12.60 8.30 437.79 338.63 97.86 339.11