US Army Corps of Engineers

Rocky Reach Dam & Lake

August 2026

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 87.65 91.35 87.06 3.98 705.27 705.81 615.69 90.12
2 80.00 83.05 81.80 0.95 704.77 706.05 615.32 90.73
3 97.48 96.30 95.30 0.68 704.80 705.81 616.19 89.62
4 83.02 77.84 77.52 0.00 706.19 705.87 615.04 90.83
5 97.16 97.26 96.92 0.00 705.94 705.96 616.19 89.77
6 87.25 85.35 85.01 0.00 706.54 706.12 615.53 90.59
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TOT           
AVG    88.76 88.52 87.27 0.93 705.59 705.94 615.66 90.28
MAX    97.48 97.26 96.92 3.98 706.54 706.12 616.19 90.83
MIN    80.00 77.84 77.52 0.00 704.77 705.81 615.04 89.62