US Army Corps of Engineers

Lower Monumental Dam & Lake

August 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 2035 85 27 22.70 23.20 11.40 11.20 538.14 538.27 438.42 99.85
2 2066 86 27 23.70 22.60 11.60 10.30 538.46 538.29 438.45 99.84
3 2323 97 27 26.00 26.40 13.00 12.60 538.33 538.49 438.49 100.00
4 2014 84 27 28.00 27.10 11.30 15.00 538.60 538.44 438.39 100.05
5 2032 85 27 23.80 25.30 11.40 13.20 538.16 538.32 438.36 99.96
6 2038 85 27 23.80 22.10 11.40 10.00 538.68 538.39 438.46 99.93
7 2026 84 26 22.80 22.20 11.30 10.10 538.83 538.73 438.38 100.35
8 2021 84 26 22.80 23.70 11.30 11.50 538.58 538.64 438.41 100.23
9 2027 84 26 23.80 24.50 11.50 12.20 538.50 538.56 438.35 100.21
10 2018 84 25 24.10 24.40 11.30 12.20 538.35 538.52 438.46 100.06
11 2009 84 25 21.60 22.20 11.40 10.00 538.24 538.34 438.23 100.11
12 2019 84 26 26.20 24.50 11.40 12.40 538.75 538.45 438.38 100.07
13 2145 89 26 26.00 26.70 12.10 13.70 538.54 538.40 438.32 100.08
14 2061 86 26 28.20 29.60 11.70 17.10 538.11 538.21 438.23 99.98
15 2249 94 26 20.50 20.80 12.80 7.30 538.02 538.11 438.53 99.58
16 2085 87 26 20.40 19.60 11.80 7.10 538.28 538.18 438.63 99.55
17 2081 87 26 19.90 19.60 11.80 7.00 538.37 538.32 438.76 99.56
18 2441 102 26 21.00 21.60 13.80 7.00 538.19 538.30 438.98 99.32
19 3015 126 26 24.80 24.90 17.10 7.00 538.18 538.13 439.18 98.95
20 2322 97 25 21.30 20.90 13.20 7.10 538.26 538.26 438.76 99.50
21 2077 87 25 20.20 19.60 11.80 7.00 538.44 538.38 438.70 99.68
22 2043 85 26 19.40 19.50 11.60 7.10 538.39 538.41 438.94 99.47
23 2042 85 26 19.20 19.20 11.60 6.90 538.40 538.37 439.07 99.30
24 2598 108 26 22.40 22.30 14.70 6.80 538.42 538.40 438.73 99.67
25 2736 114 26 22.10 23.30 15.50 7.00 538.06 538.24 438.83 99.41
26 2100 87 26 22.80 19.70 12.00 7.10 538.97 538.21 439.01 99.20
27 2553 106 26 21.00 22.10 14.40 7.00 538.64 538.84 439.19 99.65
28 2044 85 26 20.80 19.40 11.60 7.00 539.05 538.82 439.11 99.71
29 2745 114 25 23.80 23.20 15.40 7.00 539.25 539.22 439.14 100.08
30 2767 115 25 22.60 23.20 15.50 7.00 539.28 539.29 439.06 100.23
31 2844 119 21 23.20 23.70 16.00 7.00 539.15 539.30 439.16 100.14
TOT 69576  799        
AVG 2244 94 26 22.87 22.81 12.67 9.38 538.50 538.48 438.68 99.80
MAX 3015   28.20 29.60 17.10 17.10 539.28 539.30 439.19 100.35
MIN 2009   19.20 19.20 11.30 6.80 538.02 538.11 438.23 98.95