US Army Corps of Engineers

Rocky Reach Dam & Lake

September 2021

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 15656 652 0 98.22 100.42 94.52 5.90 705.59 706.12 616.26 89.86
2 12637 527 0 74.13 74.93 74.93 0.00 705.85 705.60 614.59 91.01
3 11975 499 0 67.91 70.61 70.61 0.00 705.33 705.75 614.52 91.23
4 10020 418 0 56.37 59.03 59.03 0.00 704.89 705.75 613.61 92.14
5 8442 352 0 53.63 49.97 49.85 0.12 705.85 705.77 613.44 92.33
6 8717 363 0 52.93 51.43 51.43 0.00 706.10 705.92 613.46 92.46
7 11518 480 0 67.62 70.52 68.80 1.72 705.24 705.89 614.51 91.38
8 9119 380 0 56.70 54.00 54.00 0.00 705.98 705.57 613.43 92.14
9 7726 322 0 44.70 45.60 45.60 0.00 705.90 705.64 613.03 92.61
10 9430 393 0 55.92 55.92 55.40 0.51 705.79 706.19 613.96 92.23
11 9226 384 0 57.31 55.41 54.85 0.56 706.15 706.01 613.60 92.41
12 8936 372 0 50.12 54.02 52.36 1.65 705.37 706.20 613.77 92.43
13 7999 333 0 49.65 47.15 47.15 0.00 705.96 705.48 613.13 92.35
14 8979 374 0 53.99 52.29 52.29 0.00 706.27 706.08 613.72 92.36
15 9352 390 0 51.19 54.39 54.17 0.22 705.58 705.94 613.45 92.49
16 11564 482 0 70.48 70.38 68.22 2.16 705.41 706.05 614.44 91.61
17 10741 448 0 60.90 63.75 63.75 0.00 704.89 705.58 614.08 91.50
18 7692 320 0 44.34 45.33 45.33 0.00 704.90 705.32 613.04 92.28
19 7373 307 0 46.46 42.32 42.32 0.00 705.85 705.78 612.95 92.83
20 9529 397 0 54.45 55.75 55.75 0.00 705.43 705.63 613.60 92.03
21 68.81 65.71 65.71 0.00 705.94 706.23 614.36 91.87
22 61.96 63.56 63.56 0.00 705.64 705.98 614.00 91.98
23 72.75 71.25 71.25 0.00 705.78 705.93 614.52 91.41
24 67.84 69.44 69.39 0.05 705.48 705.91 614.29 91.62
25 54.99 55.89 55.89 0.00 705.50 705.63 613.51 92.12
26 51.40 52.10 51.90 0.19 705.37 705.73 613.32 92.41
27 60.60 62.89 62.89 0.00 704.77 705.41 614.17 91.24
28
29
30
TOT196631  0        
AVG 9832 410 0 59.46 59.78 59.29 0.48 705.59 705.82 613.88 91.94
MAX 15656   98.22 100.42 94.52 5.90 706.27 706.23 616.26 92.83
MIN 7373   44.34 42.32 42.32 0.00 704.77 705.32 612.95 89.86