US Army Corps of Engineers

Ice Harbor Dam

Wednesday December 17, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 26.70 26.20 0.00 439.06 339.35 99.71 339.33
2 13.80 13.30 0.00 438.83 338.28 100.55 338.25
3 13.50 13.00 0.00 439.15 338.48 100.67 338.48
4 13.40 12.90 0.00 438.91 338.62 100.29 338.65
5 24.60 12.80 11.30 438.38 339.33 99.05 339.53
6 25.20 0.00 24.70 439.30 339.16 100.14 339.63
7 26.50 4.10 21.90 438.45 340.30 98.15 340.23
8 41.10 39.10 0.00 438.52 341.07 97.45 340.91
9 39.80 39.30 0.00 438.75 341.06 97.69 340.82
10 39.90 39.40 0.00 438.47 340.99 97.48 340.81
11 39.90 39.40 0.00 438.62 341.06 97.56 340.82
12 39.70 39.20 0.00 438.26 341.10 97.16 340.92
13 39.90 39.40 0.00 438.20 340.93 97.27 341.01
14 27.40 26.90 0.00 438.48 339.93 98.55 339.84
15 27.70 27.20 0.00 438.12 340.18 97.94 340.13
16 40.30 39.80 0.00 438.29 341.19 97.10 340.87
17 41.30 40.80 0.00 438.23 341.69 96.54 341.39
18 53.20 52.70 0.00 438.25 342.56 95.69 342.14
19 53.60 53.10 0.00 438.32 342.51 95.81 342.15
20 55.20 53.20 0.00 438.09 342.56 95.53 342.20
21 53.90 53.40 0.00 438.23 342.54 95.69 342.16
22 53.80 53.30 0.00 438.11 342.54 95.57 342.25
23 53.10 52.60 0.00 438.05 342.02 96.03 341.91
24 39.20 38.70 0.00 438.20 340.52 97.68 340.58
AVG 36.78 33.74 2.41 438.47 340.75 97.72 340.63
MAX 55.20 53.40 24.70 439.30 342.56 100.67 342.25
MIN 13.40 0.00 0.00 438.05 338.28 95.53 338.25
BUILDING STRONG®