US Army Corps of Engineers

Rocky Reach Dam & Lake

April 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 18119 755 0 111.39 111.19 110.91 0.00 705.03 705.29 617.25 88.04
2 11949 498 0 65.25 70.89 70.59 0.00 704.48 705.11 614.42 90.69
3 15651 652 0 98.94 94.80 94.49 0.00 704.98 705.35 616.21 89.14
4 14238 593 0 82.61 86.04 85.75 0.00 704.38 704.99 615.54 89.45
5 11618 484 0 70.64 69.52 69.22 0.00 704.88 704.86 614.39 90.47
6 12757 532 0 75.35 76.20 75.90 0.00 704.60 704.87 614.87 90.00
7 13719 572 0 83.16 82.38 82.07 0.00 704.67 705.01 615.36 89.65
8 14472 603 0 86.48 86.51 86.20 0.00 704.59 705.08 615.59 89.49
9 12946 539 0 77.97 77.57 77.27 0.00 704.82 704.96 614.88 90.08
10 21290 887 0 141.00 135.15 134.82 0.00 705.00 705.78 618.88 86.90
11 19174 799 0 114.03 117.66 117.35 0.00 704.58 705.31 617.84 87.47
12 18209 759 0 116.02 112.70 110.82 1.57 705.44 705.76 617.37 88.39
13 22089 920 0 154.42 146.69 138.48 7.88 706.42 706.29 619.39 86.90
14 22844 952 0 145.90 148.77 145.80 2.64 705.67 705.99 619.48 86.51
15 20418 851 0 117.37 126.85 126.53 0.00 704.08 705.44 618.38 87.06
16 16933 706 0 106.47 103.65 103.35 0.00 705.17 705.22 616.56 88.66
17 20672 861 0 129.98 130.18 129.88 0.00 704.58 705.00 618.52 86.48
18 20505 854 0 129.12 128.03 127.71 0.02 704.89 704.98 618.50 86.48
19 16058 669 0 100.98 98.68 98.35 0.00 705.95 705.49 616.34 89.15
20 18981 791 0 116.44 117.44 116.28 0.83 705.40 705.80 617.83 87.97
21 18502 771 0 116.22 113.02 112.69 0.00 706.15 705.36 617.40 87.96
22 22076 920 0 138.34 138.55 138.21 0.00 705.64 705.90 619.28 86.62
23 18937 789 0 112.10 116.09 115.76 0.00 705.23 705.39 617.48 87.91
24 18200 758 0 110.03 109.73 109.42 0.00 705.40 705.46 617.08 88.38
25 18994 791 0 117.65 117.45 117.15 0.00 705.28 705.01 617.59 87.42
26 18006 750 0 106.57 109.74 109.41 0.00 704.74 705.64 617.16 88.48
27 14229 593 0 82.39 85.33 85.03 0.00 704.55 704.84 615.48 89.36
28 18080 753 0 115.68 111.54 111.24 0.00 704.97 705.00 617.31 87.69
29 17048 710 0 107.98 102.81 102.48 0.00 706.29 705.57 616.57 89.00
30 20368 849 0 128.25 128.55 128.22 0.00 705.67 705.50 618.55 86.95
TOT527082  0        
AVG 17569 732 0 108.62 108.46 107.71 0.43 705.12 705.34 617.05 88.29
MAX 22844   154.42 148.77 145.80 7.88 706.42 706.29 619.48 90.69
MIN 11618   65.25 69.52 69.22 0.00 704.08 704.84 614.39 86.48
BUILDING STRONG®