US Army Corps of Engineers

Ice Harbor Dam

Tuesday September 2, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.00 12.50 0.00 439.50 339.19 100.31 339.35
2 14.50 12.50 0.00 439.38 339.14 100.24 339.37
3 13.00 12.50 0.00 439.26 339.28 99.98 339.42
4 14.50 12.50 0.00 439.10 339.41 99.69 339.58
5 13.30 12.60 0.20 439.08 339.31 99.77 339.84
6 22.40 12.60 9.30 439.07 339.53 99.54 340.39
7 22.40 12.50 9.40 439.19 339.35 99.84 340.22
8 22.40 12.50 9.40 438.97 339.48 99.49 340.30
9 23.70 12.50 9.10 439.23 339.50 99.73 339.89
10 13.00 12.50 0.00 439.22 339.76 99.46 339.81
11 14.50 12.50 0.00 439.12 339.79 99.33 340.03
12 13.10 12.60 0.00 439.27 339.69 99.58
13
14
15
16
17 341.42
18 341.42
19 341.33
20 40.00 39.50 0.00 438.92 341.02 97.90 341.00
21 27.30 26.80 0.00 439.11 339.98 99.13 340.03
22 27.10 26.60 0.00 439.25 340.00 99.25 340.07
23 15.40 14.90 0.00 439.59 339.03 100.56 339.18
24 13.20 12.70 0.00 439.32 339.41 99.91 339.60
AVG 18.99 15.93 2.20 439.21 339.58 99.63 340.12
MAX 40.00 39.50 9.40 439.59 341.02 100.56 341.42
MIN 13.00 12.50 0.00 438.92 339.03 97.90 339.18
BUILDING STRONG®