US Army Corps of Engineers

Lower Granite Dam & Lake

June 2024

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feetMidnight Lewiston Gage ft
1 2085 87 35 83.90 84.50 11.90 72.10 733.72 733.84 633.53 100.31 734.51
2 2080 87 35 79.10 80.00 11.90 67.60 733.46 733.61 633.66 99.95 734.24
3 2070 86 35 84.80 82.70 11.80 70.30 733.94 733.61 633.83 99.78 734.49
4 5708 238 35 111.70 114.80 32.50 81.60 733.27 733.86 635.04 98.82 734.86
5 4676 195 34 108.20 107.80 26.60 80.70 733.42 733.39 634.62 98.77 734.49
6 4715 196 35 107.00 107.70 26.70 80.50 733.34 733.87 634.51 99.36 734.77
7 4264 178 35 105.50 104.70 24.20 79.80 733.64 733.48 634.27 99.21 734.49
8 4252 177 35 104.40 105.10 24.00 80.50 733.58 733.84 634.18 99.66 734.74
9 4236 176 36 105.60 104.80 23.80 80.50 733.87 733.84 634.26 99.58 734.80
10 3655 152 41 99.90 101.60 20.70 80.50 733.42 733.86 634.37 99.49 734.72
11 2105 88 41 93.40 92.40 11.90 79.90 733.68 733.67 634.05 99.62 734.63
12 2127 89 41 91.30 89.90 11.90 77.50 734.05 734.00 633.89 100.11 734.85
13 2109 88 41 84.60 86.20 11.80 73.80 733.63 733.93 633.81 100.12 734.59
14 2097 87 41 76.10 75.00 11.80 62.50 733.91 733.74 633.55 100.19 734.47
15 2172 91 41 66.20 66.50 12.10 54.00 733.82 733.90 633.41 100.49 734.47
16 2175 91 41 61.20 61.60 12.20 48.90 733.74 733.79 633.47 100.32 734.27
17 2167 90 41 59.50 58.70 12.20 46.00 733.91 733.70 633.39 100.31 734.27
18 2171 90 41 57.70 58.20 12.10 45.60 733.78 733.79 633.12 100.67 734.17
19 2167 90 41 54.70 56.10 12.20 43.40 733.39 733.54 633.56 99.98 733.92
20 2168 90 41 51.60 50.10 12.20 37.40 733.78 733.50 633.66 99.84 733.93
21 5403 225 41 48.50 49.40 30.40 18.50 733.58 733.73 633.95 99.78 734.00
22 5434 226 41 49.40 49.40 30.50 18.50 733.55 733.76 633.52 100.24 734.05
23 48.90 48.80 29.70 18.70 733.57 733.92 633.72 100.20 734.33
24 47.30 46.50 27.50 18.50 733.77 733.85 633.69 100.16 734.26
25 46.90 49.20 30.40 18.10 733.21 733.86 633.60 100.26 734.13
26 43.10 42.00 23.60 17.80 733.49 733.57 633.26 100.31 733.97
27 42.90 43.20 25.10 17.60 733.41 733.47 633.46 100.01 733.81
28 39.60 39.60 21.00 18.00 733.42 733.71 633.59 100.12 733.95
29 38.70 39.10 20.60 18.00 733.30 733.64 633.48 100.16 733.91
30
TOT 70036  850         
AVG 3183 133 39 72.13 72.26 19.77 51.96 733.61 733.73 633.81 99.92 734.35
MAX 5708   111.70 114.80 32.50 81.60 734.05 734.00 635.04 100.67 734.86
MIN 2070   38.70 39.10 11.80 17.60 733.21 733.39 633.12 98.77 733.81
BUILDING STRONG®