US Army Corps of Engineers

Ice Harbor Dam

Friday August 29, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 23.90 12.90 9.10 438.71 339.41 99.30 339.82
2 22.40 12.90 9.10 438.62 339.20 99.42 339.62
3 22.40 12.90 9.10 438.53 339.24 99.29 339.63
4 22.50 12.90 9.10 438.66 339.32 99.34 339.75
5 22.50 12.90 9.10 438.49 339.42 99.07 339.90
6 22.60 13.00 9.10 438.60 339.48 99.12 339.92
7 24.10 13.00 9.10 438.59 339.65 98.94 340.06
8 22.50 12.90 9.10 438.51 339.63 98.88 340.07
9 22.50 12.90 9.10 438.63 339.53 99.10 339.97
10 22.50 12.90 9.10 438.55 339.49 99.06 340.01
11 22.50 12.90 9.10 438.66 339.56 99.10 340.00
12 22.50 12.90 9.10 438.67 339.51 99.16 339.92
13 22.50 12.90 9.10 438.61 339.49 99.12 339.94
14 22.50 12.90 9.10 438.72 339.47 99.25 339.90
15 22.50 12.90 9.10 438.69 339.41 99.28 339.87
16 24.00 13.00 9.10 438.76 339.50 99.26 339.93
17 22.60 13.00 9.10 438.79 339.30 99.49 339.74
18 22.60 13.00 9.10 438.78 339.25 99.53 339.75
19 22.50 12.90 9.10 438.91 339.22 99.69 339.66
20 22.50 12.90 9.10 438.90 339.18 99.72 339.65
21 22.50 12.90 9.10 438.98 339.10 99.88 339.53
22 22.50 12.90 9.10 438.98 338.97 100.01 339.44
23 22.40 12.80 9.10 438.99 338.94 100.05 339.42
24 22.40 12.80 9.10 438.99 338.89 100.10 339.33
AVG 22.68 12.91 9.10 438.72 339.34 99.38 339.78
MAX 24.10 13.00 9.10 438.99 339.65 100.10 340.07
MIN 22.40 12.80 9.10 438.49 338.89 98.88 339.33
BUILDING STRONG®