US Army Corps of Engineers

Wanapum Dam & Lake

April 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 122.00 122.00 119.30 0.70 571.11 570.57 491.42 79.15
2 83.90 85.00 78.00 5.00 570.96 570.90 489.40 81.50
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TOT           
AVG    102.95 103.50 98.65 2.85 571.04 570.74 490.41 80.33
MAX    122.00 122.00 119.30 5.00 571.11 570.90 491.42 81.50
MIN    83.90 85.00 78.00 0.70 570.96 570.57 489.40 79.15