US Army Corps of Engineers

Lower Monumental 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 13994 583 22 87.10 88.70 79.80 8.30 538.42 538.80 440.37 98.43
2 11488 479 21 72.70 74.10 65.90 7.60 538.02 537.93 439.61 98.32
3 2248 94 21 73.20 74.00 12.90 60.50 537.77 537.64 438.95 98.69
4 2226 93 21 67.50 68.60 12.70 55.40 537.43 537.55 438.57 98.98
5 2224 93 21 66.40 66.30 12.70 52.90 537.45 537.59 438.61 98.98
6 2227 93 20 64.60 63.60 12.70 50.20 537.73 537.53 438.64 98.89
7 2225 93 21 64.20 64.30 12.70 50.90 537.70 537.80 438.70 99.10
8 2224 93 21 64.40 65.30 12.70 51.90 537.44 537.54 438.73 98.81
9 2230 93 21 72.40 71.90 12.80 58.40 537.60 537.53 438.81 98.72
10 2221 93 20 74.90 76.00 12.70 62.60 537.24 537.46 438.87 98.59
11 2222 93 20 76.30 74.60 12.70 61.20 537.75 537.54 438.80 98.74
12 2223 93 20 85.20 85.80 12.80 72.30 537.53 537.49 439.21 98.28
13 2223 93 20 83.20 82.50 12.70 69.10 537.75 537.55 439.05 98.50
14 2228 93 20 87.10 86.70 12.70 73.30 537.88 537.86 439.13 98.73
15 2191 91 20 82.40 82.60 12.50 69.30 537.85 537.82 438.98 98.84
16 2178 91 20 84.70 85.50 12.50 72.30 537.60 537.81 439.04 98.77
17 2179 91 21 85.10 85.20 12.50 72.00 537.57 537.81 439.02 98.79
18 2172 90 20 83.30 83.30 12.50 70.20 537.55 537.51 438.97 98.54
19 2144 89 20 80.80 79.70 12.30 66.70 537.89 537.60 438.94 98.66
20 2151 90 20 76.10 75.90 12.30 62.90 537.95 537.78 438.71 99.07
21 2158 90 21 71.50 72.50 12.30 59.50 537.62 537.76 438.63 99.13
22 2159 90 20 64.90 65.00 12.30 52.00 537.59 537.58 438.54 99.04
23 2156 90 20 68.60 67.70 12.30 54.70 537.85 537.72 438.75 98.97
24 2311 96 20 63.90 63.30 13.20 49.40 538.03 537.76 438.80 98.96
25 2294 96 20 59.10 59.90 13.10 46.10 537.81 537.85 438.65 99.20
26 2330 97 20 60.50 60.50 13.30 46.50 537.81 537.74 438.71 99.03
27 2228 93 20 60.30 59.30 12.70 45.90 538.11 537.86 438.74 99.12
28 2295 96 20 68.50 68.10 13.10 54.20 538.26 537.74 438.96 98.78
29 2466 103 20 77.30 78.30 14.60 63.00 537.94 537.88 439.15 98.73
30 2497 104 20 78.50 78.70 14.30 63.60 537.87 537.73 439.00 98.73
TOT 88109  614        
AVG 2937 122 20 73.49 73.60 16.81 56.10 537.77 537.73 438.92 98.80
MAX 13994   87.10 88.70 79.80 73.30 538.42 538.80 440.37 99.20
MIN 2144   59.10 59.30 12.30 7.60 537.24 537.46 438.54 98.28
BUILDING STRONG®