US Army Corps of Engineers

Wanapum Dam

Thursday July 9, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 100.60 82.05 16.53 565.43 489.11 76.32
2 95.00 76.34 16.70 565.64 488.81 76.83
3 82.80 63.98 16.81 565.64 488.11 77.53
4 77.80 59.03 16.73 565.47 487.81 77.66
5 79.50 60.88 16.66 565.42 488.03 77.39
6 99.80 81.33 16.50 565.12 489.10 76.02
7 119.60 101.30 16.28 564.87 489.95 74.92
8 82.30 64.01 16.31 564.94 488.04 76.90
9 86.10 67.89 16.21 564.70 488.31 76.39
10 93.00 74.91 16.10 564.68 488.87 75.81
11 78.50 60.25 16.21 564.93 487.76 77.16
12 90.90 72.64 16.31 565.02 488.55 76.47
13 95.10 76.74 16.35 565.19 488.27 76.91
14 78.30 59.77 16.56 565.37 488.05 77.31
15 92.60 73.94 16.63 565.46 488.40 77.06
16 86.70 67.87 16.84 565.92 487.97 77.95
17 125.60 106.66 16.95 565.96 490.23 75.73
18 155.60 136.66 16.95 566.04 491.83 74.21
19 150.40 131.30 17.10 566.17 492.11 74.06
20 156.80 137.60 17.17 566.23 492.10 74.13
21 137.20 117.86 17.32 566.76 491.05 75.71
22 142.10 122.52 17.61 566.81 491.71 75.10
23 129.60 110.05 17.59 566.75 490.96 75.80
24 143.20 123.61 17.63 566.92 491.43 75.48
AVG 107.46 88.72 16.75 565.64 489.44 76.20
MAX 156.80 137.60 17.63 566.92 492.11 77.95
MIN 77.80 59.03 16.10 564.68 487.76 74.06