US Army Corps of Engineers

Priest Rapids Dam & Reservoir

October 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 9856 411 24 72.60 74.00 70.90 2.30 485.55 485.56 405.64 79.92
2 7518 313 23 59.60 55.50 52.60 2.20 486.70 485.50 403.63 81.87
3 6642 277 24 47.90 49.00 46.20 2.30 486.40 485.49 402.75 82.74
4 10465 436 37 74.90 78.20 75.00 2.30 485.49 485.61 406.07 79.54
5 9597 400 40 72.90 71.10 68.20 2.20 485.99 485.59 405.23 80.36
6 8574 357 40 63.40 62.60 59.70 2.20 486.21 485.60 404.36 81.24
7 9603 400 39 69.70 70.80 67.60 2.40 485.93 486.15 405.18 80.97
8 10894 454 34 83.10 81.60 78.20 2.50 486.36 486.08 406.28 79.80
9 7131 297 23 51.60 52.20 49.30 2.40 486.18 485.66 403.25 82.41
10 5714 238 24 32.80 41.60 39.20 1.90 483.67 484.34 402.06 82.28
11 8323 347 22 64.60 61.70 59.00 2.10 484.51 484.78 404.37 80.41
12 7967 332 4 65.70 58.90 56.50 1.70 486.41 484.85 404.04 80.81
13 8154 340 0 88.10 84.50 57.30 26.30 487.37 487.49 406.14 81.35
14 9300 388 39 61.70 68.10 65.30 2.10 485.63 486.39 404.88 81.51
15 66.70 64.70 62.30 1.60 486.20 483.91 404.61 79.30
16 60.20 61.50 58.90 1.90 485.83 484.41 404.25 80.16
17 56.30 59.40 56.90 1.80 484.94 484.16 404.05 80.11
18 54.40 58.70 56.20 1.80 483.68 484.06 403.99 80.07
19 73.60 64.80 62.50 1.60 486.19 484.28 404.65 79.63
20 66.20 63.70 60.50 2.50 486.88 486.47 404.39 82.08
21 58.50 67.60 64.80 2.10 484.33 486.48 404.81 81.67
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TOT119738  373        
AVG 8553 356 27 64.02 64.30 60.34 3.25 485.74 485.37 404.51 80.87
MAX 10894   88.10 84.50 78.20 26.30 487.37 487.49 406.28 82.74
MIN 5714   32.80 41.60 39.20 1.60 483.67 483.91 402.06 79.30