US Army Corps of Engineers

Ice Harbor Dam

Friday September 18, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.10 12.60 0.00 439.04 339.34 99.70 339.48
2 13.20 12.70 0.00 439.04 339.31 99.73 339.49
3 13.20 12.70 0.00 438.96 339.48 99.48 339.66
4 13.20 12.70 0.00 439.05 339.46 99.59 339.62
5 13.50 12.70 0.30 438.96 339.36 99.60 339.95
6 22.40 12.80 9.10 438.91 339.48 99.43 340.22
7 22.60 12.80 9.30 439.06 339.33 99.73 340.14
8 22.50 12.80 9.30 438.89 339.35 99.54 340.19
9 22.50 12.80 9.20 439.04 339.38 99.66 340.13
10 13.80 12.80 0.50 439.12 339.43 99.69 339.60
11 13.20 12.70 0.00 439.15 339.56 99.59 339.72
12 13.20 12.70 0.00 439.47 339.51 99.96 339.68
13 14.00 13.50 0.00 439.24 340.03 99.21 340.36
14 26.40 25.90 0.00 439.33 340.50 98.83 340.54
15 26.50 26.00 0.00 439.37 340.31 99.06 340.40
16 26.60 26.10 0.00 439.17 340.34 98.83 340.43
17 26.60 26.10 0.00 439.28 340.35 98.93 340.44
18 26.50 26.00 0.00 439.17 340.36 98.81 340.45
19 26.40 25.90 0.00 439.00 340.34 98.66 340.41
20 26.70 26.20 0.00 439.01 340.30 98.71 340.40
21 26.20 25.70 0.00 438.88 339.85 99.03 340.04
22 13.80 13.30 0.00 438.96 339.26 99.70 339.44
23 13.20 12.70 0.00 438.92 339.48 99.44 339.63
24 13.00 12.50 0.00 439.06 339.42 99.64 339.54
AVG 19.26 17.20 1.57 439.09 339.73 99.36 340.00
MAX 26.70 26.20 9.30 439.47 340.50 99.96 340.54
MIN 13.00 12.50 0.00 438.88 339.26 98.66 339.44
BUILDING STRONG®