US Army Corps of Engineers

Ice Harbor Dam

Saturday September 19, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 14.50 12.50 0.00 439.10 339.52 99.58 339.60
2 13.00 12.50 0.00 439.10 339.33 99.77 339.51
3 13.00 12.50 0.00 439.09 339.37 99.72 339.54
4 13.60 13.10 0.00 438.99 339.81 99.18 340.14
5 26.80 26.10 0.20 438.99 340.38 98.61 340.72
6 37.40 26.40 9.00 438.70 340.73 97.97 341.18
7 35.90 26.40 9.00 438.82 340.45 98.37 340.98
8 34.60 25.30 8.90 438.65 339.70 98.95 340.41
9 21.90 12.70 8.70 438.81 339.09 99.72 339.70
10 13.00 12.50 0.00 438.74 339.34 99.40 339.54
11 13.10 12.60 0.00 438.89 339.68 99.21 339.81
12 13.00 12.50 0.00 439.08 339.60 99.48 339.75
13 13.10 12.60 0.00 438.99 339.60 99.39 339.75
14 13.00 12.50 0.00 439.18 339.61 99.57 339.72
15 13.00 12.50 0.00 439.20 339.61 99.59 339.77
16 13.00 12.50 0.00 439.39 339.62 99.77 339.78
17 14.30 13.80 0.00 439.35 340.10 99.25 340.24
18 26.40 25.90 0.00 439.24 340.48 98.76 340.61
19 26.50 26.00 0.00 439.26 340.30 98.96 340.38
20 28.00 26.00 0.00 439.03 340.34 98.69 340.41
21 26.50 26.00 0.00 439.00 340.28 98.72 340.36
22 26.30 25.80 0.00 438.97 339.99 98.98 340.17
23 13.20 12.70 0.00 438.80 339.18 99.62 339.31
24 13.00 12.50 0.00 438.89 339.41 99.48 339.61
AVG 19.84 17.66 1.49 439.01 339.81 99.20 340.04
MAX 37.40 26.40 9.00 439.39 340.73 99.77 341.18
MIN 13.00 12.50 0.00 438.65 339.09 97.97 339.31
BUILDING STRONG®