US Army Corps of Engineers

Lower Monumental Dam & Lake

January 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 4385 183 21 23.50 25.00 24.30 0.00 538.47 538.88 439.09 99.79
2 4656 194 21 27.30 26.40 25.80 0.00 538.74 538.76 439.16 99.60
3 4126 172 21 24.10 23.60 22.80 0.00 538.90 538.97 439.28 99.69
4 5280 220 21 28.80 30.10 29.40 0.00 538.50 538.83 439.41 99.42
5 5891 245 20 32.90 33.40 32.50 0.00 538.35 538.69 439.46 99.23
6 5424 226 20 32.00 30.50 29.80 0.00 538.79 538.62 439.13 99.49
7 5366 224 21 30.40 29.90 29.40 0.00 538.94 538.93 439.21 99.72
8 4949 206 22 25.30 27.30 27.10 0.00 538.37 538.76 439.23 99.53
9 4585 191 22 25.90 25.30 25.10 0.00 538.55 538.82 439.13 99.69
10 4645 194 21 25.80 25.60 25.50 0.00 538.58 538.65 439.14 99.51
11 4733 197 21 26.20 26.30 26.10 0.00 538.56 538.60 439.18 99.42
12 5436 226 21 29.30 30.20 30.00 0.00 538.30 538.60 439.29 99.31
13 5339 222 21 32.70 30.10 29.80 0.00 539.07 538.18 439.17 99.01
14 6660 277 21 37.10 37.20 36.90 0.00 539.05 538.86 438.96 99.90
15 6581 274 21 35.70 36.40 36.20 0.00 538.85 538.96 439.17 99.79
16 33.60 32.60 32.40 0.00 539.16 539.06 439.10 99.96
17 21.20 22.10 21.80 0.00 538.91 539.12 439.07 100.05
18 30.10 31.00 30.80 0.00 538.63 538.83 439.21 99.62
19 27.90 27.20 27.00 0.00 538.83 538.89 439.11 99.78
20 26.70 26.10 25.80 0.00 539.02 538.97 438.86 100.11
21 26.40 27.10 26.80 0.00 538.80 538.72 438.99 99.73
22 27.40 27.40 27.30 0.00 538.78 538.98 439.07 99.91
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TOT 78056  316        
AVG 5204 217 21 28.65 28.67 28.30 0.00 538.73 538.80 439.16 99.65
MAX 6660   37.10 37.20 36.90 0.00 539.16 539.12 439.46 100.11
MIN 4126   21.20 22.10 21.80 0.00 538.30 538.18 438.86 99.01