US Army Corps of Engineers

Ice Harbor Dam

Saturday October 31, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.30 12.80 0.00 438.73 338.69 100.04 338.87
2 13.30 12.80 0.00 438.71 338.71 100.00 338.89
3 13.30 12.80 0.00 438.71 338.72 99.99 338.91
4 13.30 12.80 0.00 438.73 338.83 99.90 338.96
5 13.60 12.90 0.20 438.69 338.74 99.95 339.22
6 22.50 13.20 8.90 438.57 339.20 99.37 339.91
7 37.10 26.20 8.80 438.70 340.38 98.32 340.93
8 35.90 26.70 8.70 438.42 340.15 98.27 340.68
9 35.40 26.50 8.40 438.40 340.14 98.26 340.32
10 26.50 26.00 0.00 438.39 339.78 98.61 339.96
11 13.80 13.30 0.00 438.22 339.07 99.15 339.25
12 13.50 13.00 0.00 438.48 339.29 99.19 339.46
13 13.50 13.00 0.00 438.46 339.24 99.22 339.40
14 13.60 13.10 0.00 438.43 339.26 99.17 339.44
15 13.60 13.10 0.00 438.36 339.19 99.17 339.36
16 13.60 13.10 0.00 438.33 339.21 99.12 339.36
17 13.50 13.00 0.00 438.46 339.16 99.30 339.32
18 13.20 12.70 0.00 438.42 339.08 99.34 339.26
19 13.20 12.70 0.00 438.38 339.07 99.31 339.24
20 13.20 12.70 0.00 438.50 339.02 99.48 339.15
21 14.60 12.60 0.00 438.50 338.92 99.58 339.12
22 13.20 12.70 0.00 438.52 339.04 99.48 339.10
23 13.10 12.60 0.00 438.56 338.81 99.75 338.95
24 14.60 12.60 0.00 438.69 338.78 99.91 338.99
1 13.10 12.60 0.00 438.61 338.76 99.85 338.91
AVG 17.10 15.02 1.40 438.52 339.17 99.35 339.40
MAX 37.10 26.70 8.90 438.73 340.38 100.04 340.93
MIN 13.10 12.60 0.00 438.22 338.69 98.26 338.87
BUILDING STRONG®