US Army Corps of Engineers

Ice Harbor Dam

Thursday September 17, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.00 12.50 0.00 438.82 338.97 99.85 339.15
2 13.00 12.50 0.00 438.93 338.90 100.03 339.11
3 14.50 12.50 0.00 438.93 339.44 99.49 339.61
4 13.00 12.50 0.00 438.94 339.01 99.93 339.15
5 13.20 12.50 0.20 438.86 338.93 99.93 339.48
6 22.00 12.50 9.00 438.79 339.02 99.77 339.84
7 22.20 12.50 9.10 438.92 339.05 99.87 339.78
8 22.10 12.50 9.10 438.76 339.01 99.75 339.83
9 22.10 12.50 9.10 438.82 339.08 99.74 339.82
10 22.10 12.50 9.10 438.75 339.18 99.57 340.15
11 23.60 12.50 9.10 438.85 339.08 99.77 339.89
12 22.10 12.50 9.00 438.78 339.10 99.68 339.88
13 23.60 12.60 9.00 438.75 339.21 99.54 340.05
14 22.00 12.50 9.00 438.80 339.25 99.55 340.06
15 22.00 12.50 9.00 438.88 339.26 99.62 340.03
16 22.10 12.50 9.00 438.82 339.19 99.63 339.94
17 21.60 12.60 8.60 438.76 339.33 99.43 339.62
18 13.10 12.60 0.00 438.81 339.33 99.48 339.52
19 13.00 12.50 0.00 438.84 339.44 99.40 339.63
20 13.00 12.50 0.00 438.79 339.33 99.46 339.51
21 13.00 12.50 0.00 439.05 339.39 99.66 339.55
22 13.00 12.50 0.00 438.92 339.29 99.63 339.51
23 13.10 12.60 0.00 439.08 339.29 99.79 339.45
24 14.50 12.50 0.00 438.92 339.25 99.67 339.41
AVG 17.79 12.52 4.51 438.86 339.18 99.68 339.67
MAX 23.60 12.60 9.10 439.08 339.44 100.03 340.15
MIN 13.00 12.50 0.00 438.75 338.90 99.40 339.11
BUILDING STRONG®