US Army Corps of Engineers

Ice Harbor Dam

Monday September 21, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.10 12.60 0.00 438.99 339.10 99.89 339.32
2 13.10 12.60 0.00 438.90 339.12 99.78 339.30
3 13.10 12.60 0.00 438.95 339.11 99.84 339.30
4 13.00 12.50 0.00 438.96 339.07 99.89 339.24
5 13.20 12.50 0.20 438.86 338.95 99.91 339.49
6 22.10 12.50 9.00 438.85 339.07 99.78 339.81
7 22.20 12.50 9.20 438.98 338.86 100.12 339.62
8 22.00 12.40 9.10 438.84 338.80 100.04 339.56
9 21.90 12.50 8.90 439.00 338.74 100.26 339.15
10 13.00 12.50 0.00 438.99 338.92 100.07 339.06
11 13.00 12.50 0.00 438.85 339.05 99.80 339.19
12 13.00 12.50 0.00 439.12 339.06 100.06 339.20
13 13.00 12.50 0.00 438.89 339.12 99.77 339.26
14 13.10 12.60 0.00 438.90 339.04 99.86 339.22
15 13.10 12.60 0.00 438.94 339.11 99.83 339.29
16 13.10 12.60 0.00 438.85 339.14 99.71 339.32
17 13.10 12.60 0.00 439.05 339.13 99.92 339.31
18 13.10 12.60 0.00 438.93 339.19 99.74 339.36
19 13.00 12.50 0.00 438.93 338.94 99.99 339.14
20 14.50 12.50 0.00 438.98 338.97 100.01 339.11
21 13.00 12.50 0.00 438.89 339.52 99.37 339.68
22 13.00 12.50 0.00 438.93 338.90 100.03 339.10
23 12.90 12.40 0.00 438.88 338.95 99.93 339.08
24 13.00 12.50 0.00 439.03 338.96 100.07 339.12
AVG 14.61 12.52 1.52 438.94 339.03 99.90 339.30
MAX 22.20 12.60 9.20 439.12 339.52 100.26 339.81
MIN 12.90 12.40 0.00 438.84 338.74 99.37 339.06
BUILDING STRONG®