US Army Corps of Engineers

McNary Dam & Lake Wallula

March 2024

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 14264 594 72 118.10 118.00 112.60 1.60 339.09 338.85 266.32 72.53
2 14012 584 72 108.30 116.70 111.40 1.60 338.62 338.65 266.57 72.08
3 12413 517 72 97.80 102.90 97.60 1.60 338.38 338.45 266.05 72.40
4 12518 522 72 108.40 103.30 98.00 1.60 338.63 338.40 265.54 72.86
5 13234 551 72 117.80 107.80 102.40 1.60 339.16 338.83 265.29 73.54
6 14072 586 72 111.40 114.80 109.50 1.60 338.99 338.86 265.64 73.22
7 13389 558 72 110.50 108.90 103.60 1.70 339.10 339.04 265.57 73.47
8 13702 571 72 108.70 112.50 107.10 1.70 338.85 338.82 265.69 73.13
9 12619 526 72 102.60 103.30 97.90 1.70 338.83 338.88 265.56 73.32
10 11341 473 69 103.00 96.90 91.50 1.80 339.20 339.00 265.46 73.54
11 13783 574 72 109.10 113.20 107.60 1.90 339.06 338.90 265.63 73.27
12 13923 580 72 117.60 113.90 108.40 1.80 339.24 339.19 265.93 73.26
13 13639 568 72 107.60 110.80 105.40 1.70 339.00 339.07 265.67 73.40
14 14283 595 72 114.30 116.20 111.00 1.60 338.81 338.64 264.93 73.71
15 15198 633 72 132.40 123.30 117.90 1.70 339.34 339.09 265.71 73.38
16 15164 632 72 117.20 122.30 116.80 1.70 338.84 339.27 265.74 73.53
17 14015 584 72 113.10 113.30 108.00 1.60 339.14 338.78 265.38 73.40
18 14097 587 72 113.00 113.50 108.00 1.80 339.00 339.09 265.28 73.81
19 15090 629 72 116.00 122.10 116.70 1.70 338.77 338.75 265.36 73.39
20 15029 626 72 115.60 121.40 116.00 1.70 338.30 338.45 265.03 73.42
21 14340 597 72 120.80 123.70 111.10 9.00 338.18 338.27 264.84 73.43
22 17550 731 72 158.20 151.10 138.50 9.00 338.76 338.27 265.60 72.67
23 18298 762 72 158.00 157.00 143.70 9.60 338.68 338.90 266.04 72.86
24 14701 613 72 138.00 127.40 114.10 9.60 339.23 338.86 265.74 73.12
25 15422 643 72 128.00 132.60 119.00 9.90 339.06 339.12 265.79 73.33
26 14027 584 72 121.00 121.40 107.90 9.70 339.01 338.89 265.39 73.50
27 16456 686 72 143.40 141.10 127.70 9.80 339.32 338.94 265.72 73.22
28 17695 737 72 155.70 153.30 139.00 10.00 339.27 339.28 266.47 72.81
29 15965 665 72 142.20 139.70 125.00 10.00 339.33 339.23 266.48 72.75
30 17588 733 72 149.30 155.30 139.00 11.10 338.97 339.14 266.98 72.16
31 15096 629 72 128.00 134.60 118.50 11.40 338.72 338.88 266.54 72.34
TOT452922  2229        
AVG 14610 609 72 122.10 122.33 113.90 4.61 338.93 338.86 265.74 73.12
MAX 18298   158.20 157.00 143.70 11.40 339.34 339.28 266.98 73.81
MIN 11341   97.80 96.90 91.50 1.60 338.18 338.27 264.84 72.08
BUILDING STRONG®