US Army Corps of Engineers

Rocky Reach Dam & Lake

May 2022

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 12051 502 0 77.71 71.90 71.59 0.00 706.26 705.21 614.66 90.55
2 15421 643 0 92.50 94.80 93.36 1.13 705.47 705.27 615.87 89.40
3 13512 563 0 81.85 82.15 81.85 0.00 705.60 705.13 615.32 89.81
4 18440 768 0 116.75 112.55 111.90 0.31 705.99 706.07 617.10 88.97
5 17281 720 0 105.33 106.43 104.64 1.48 705.93 705.62 616.58 89.04
6 14228 593 0 87.96 87.56 86.07 1.17 706.31 705.52 615.61 89.91
7 13400 558 0 74.24 80.74 79.68 0.70 705.05 706.09 615.17 90.92
8 11685 487 0 72.13 69.53 69.23 0.00 705.72 705.11 614.60 90.51
9 15868 661 0 97.34 96.44 96.12 0.00 705.53 705.62 616.22 89.40
10 140.58 138.88 138.57 0.00 704.99 705.29 618.70 86.59
11 134.93 134.06 133.76 0.00 705.35 705.01 618.39 86.62
12 156.25 147.80 145.27 2.23 706.93 705.34 619.33 86.01
13 151.54 157.63 154.87 2.42 705.33 705.88 619.88 86.00
14 153.42 155.86 155.56 0.00 704.79 705.30 619.73 85.57
15 144.37 142.53 142.23 0.00 705.45 704.98 618.87 86.11
16 117.02 120.55 120.25 0.00 705.21 705.08 617.58 87.50
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TOT131886  0        
AVG 14654 611 0 112.75 112.46 111.56 0.59 705.62 705.41 617.10 88.31
MAX 18440   156.25 157.63 155.56 2.42 706.93 706.09 619.88 90.92
MIN 11685   72.13 69.53 69.23 0.00 704.79 704.98 614.60 85.57