US Army Corps of Engineers

Wanapum Dam

Tuesday March 17, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 120.50 119.10 0.00 570.67 491.18 79.49
2 102.80 101.38 0.00 570.90 490.66 80.25
3 94.10 92.65 0.00 570.88 490.18 80.70
4 102.60 101.18 0.00 571.00 490.38 80.62
5 127.80 126.42 0.00 570.87 491.42 79.45
6 126.20 124.81 0.00 570.78 491.39 79.39
7 121.70 120.34 0.00 570.77 491.07 79.70
8 135.40 133.99 0.00 570.90 491.74 79.17
9 102.50 101.06 0.00 571.17 490.42 80.75
10 112.50 111.08 0.00 571.10 490.88 80.22
11 108.60 107.23 0.00 570.71 490.01 80.70
12 102.90 101.52 0.00 570.87 489.76 81.12
13 76.20 74.78 0.00 570.82 488.86 81.95
14 89.30 87.87 0.00 570.63 489.39 81.24
15 100.40 99.03 0.00 570.61 489.76 80.84
16 92.90 91.46 0.00 570.13 489.82 80.31
17 130.10 128.71 0.00 569.82 491.17 78.65
18 143.90 142.45 0.00 569.86 492.19 77.68
19 141.00 139.58 0.00 569.89 491.93 77.96
20 144.30 142.88 0.00 569.84 492.29 77.55
21 143.50 142.09 0.00 570.06 492.19 77.87
22 136.40 134.99 0.00 570.17 491.91 78.26
23 129.40 127.95 0.00 570.38 491.71 78.67
24 121.70 120.28 0.00 570.53 491.47 79.06
AVG 116.95 115.53 0.00 570.56 490.91 79.65
MAX 144.30 142.88 0.00 571.17 492.29 81.95
MIN 76.20 74.78 0.00 569.82 488.86 77.55
BUILDING STRONG®