US Army Corps of Engineers

Priest Rapids Dam & Reservoir

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 9650 402 39 102.80 95.90 69.70 25.30 485.70 485.87 406.90 78.97
2 9464 394 40 96.00 93.40 68.70 23.80 486.42 485.28 406.70 78.58
3 8491 354 40 81.70 85.30 61.10 23.30 485.43 485.07 405.92 79.15
4 10083 420 40 100.70 97.40 74.90 21.50 486.35 484.09 407.14 76.95
5 12449 519 39 120.20 120.10 91.20 27.80 486.38 486.68 408.99 77.69
6 11753 490 39 115.10 113.80 86.00 26.90 486.73 486.38 408.43 77.95
7 9165 382 39 80.80 93.10 66.70 25.50 483.22 485.00 406.63 78.37
8 9204 384 39 94.30 89.50 67.90 20.60 484.65 483.92 406.40 77.52
9 9393 391 40 98.50 92.50 68.20 23.40 486.34 485.18 406.64 78.54
10 14736 614 39 136.80 138.00 111.90 24.90 486.02 485.67 410.49 75.18
11 16328 680 39 152.00 153.20 128.30 23.60 485.70 485.22 411.73 73.49
12 16012 667 39 149.70 150.10 125.40 23.40 485.58 485.16 411.44 73.72
13 16252 677 39 158.40 155.10 126.30 27.60 486.47 485.78 411.77 74.01
14 17331 722 38 166.30 164.30 135.00 28.00 487.01 486.74 412.30 74.44
15 16630 693 39 159.50 160.00 127.40 31.30 486.89 487.11 411.96 75.15
16 15448 644 39 143.10 146.30 115.80 29.30 486.00 487.15 411.03 76.12
17 15407 642 39 134.40 143.20 122.70 19.20 483.47 483.42 411.04 72.38
18 14943 623 39 149.40 139.60 115.30 23.10 486.27 485.09 410.66 74.43
19 15138 631 39 148.20 146.90 115.30 30.40 486.62 486.25 411.01 75.24
20 16806 700 39 162.70 161.40 130.10 30.00 486.97 486.64 412.15 74.49
21 16931 705 39 162.30 161.00 130.20 29.50 487.33 487.08 412.00 75.08
22 17297 721 39 164.00 164.20 132.50 30.30 487.30 487.47 412.26 75.21
23 16141 673 39 164.50 164.60 123.00 40.40 487.26 487.39 412.17 75.22
24 17472 728 39 171.00 171.00 136.30 33.30 487.26 487.00 412.73 74.27
25 16173 674 40 182.40 183.10 125.70 56.00 487.06 487.34 413.24 74.10
26 17488 729 41 179.30 178.00 136.20 40.40 487.40 487.47 413.10 74.37
27 15087 629 40 173.60 173.30 115.50 56.50 487.47 487.50 412.57 74.93
28 15324 638 39 172.70 172.50 117.10 54.00 487.53 487.43 412.54 74.89
29 12681 528 39 166.10 166.60 95.80 69.50 487.41 487.36 411.84 75.52
30 14969 624 39 157.60 158.60 113.80 43.50 487.16 486.92 411.64 75.28
31 15915 663 40 189.00 188.70 124.30 63.00 487.23 487.33 413.59 73.74
TOT440161  1217        
AVG 14199 592 39 143.00 142.60 108.33 33.07 486.41 486.19 410.55 75.64
MAX 17488   189.00 188.70 136.30 69.50 487.53 487.50 413.59 79.15
MIN 8491   80.80 85.30 61.10 19.20 483.22 483.42 405.92 72.38