US Army Corps of Engineers

Wanapum Dam

Sunday July 27, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 87.70 68.14 17.54 566.83 489.35 77.48
2 81.00 61.39 17.60 566.91 489.04 77.86
3 80.80 61.21 17.62 566.81 489.38 77.43
4 80.00 60.41 17.56 566.80 489.01 77.79
5 68.20 48.59 17.56 566.72 488.73 77.99
6 76.80 57.38 17.43 566.55 488.89 77.66
7 66.90 47.48 17.43 566.70 488.28 78.43
8 50.20 30.74 17.47 566.54 487.70 78.84
9 48.10 28.71 17.35 566.54 487.62 78.92
10 46.80 27.29 17.46 566.77 487.48 79.29
11 48.60 29.10 17.53 566.68 487.26 79.42
12 47.30 27.79 17.49 566.77 486.95 79.82
13 56.50 36.94 17.57 566.85 487.46 79.38
14 61.90 42.32 17.56 566.75 487.30 79.45
15 61.90 42.39 17.51 566.70 487.16 79.54
16 60.50 41.02 17.50 566.77 486.81 79.96
17 63.10 43.64 17.51 566.71 486.98 79.73
18 91.60 72.25 17.39 566.42 489.09 77.33
19 122.20 102.94 17.30 566.53 490.68 75.84
20 142.90 123.60 17.34 566.42 491.59 74.83
21 113.30 93.98 17.34 566.58 489.66 76.92
22 79.00 59.48 17.53 566.90 488.40 78.50
23 72.10 52.35 17.72 567.23 488.09 79.14
24 67.40 47.40 17.95 567.49 487.93 79.55
AVG 73.95 54.44 17.51 566.75 488.37 78.38
MAX 142.90 123.60 17.95 567.49 491.59 79.96
MIN 46.80 27.29 17.30 566.42 486.81 74.83
BUILDING STRONG®