US Army Corps of Engineers

Lower Monumental Dam

Monday June 30, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 29.70 12.40 16.70 537.74 437.80 99.94 437.54
2 29.80 12.50 16.70 537.88 437.86 100.02 437.62
3 30.00 12.50 16.90 537.73 437.70 100.03 437.27
4 29.90 12.60 16.80 537.78 437.96 99.82 437.75
5 30.10 12.70 16.80 537.74 437.99 99.75 437.74
6 34.70 17.30 16.80 537.92 437.87 100.05 437.45
7 35.10 17.50 17.00 537.93 438.03 99.90 437.71
8 34.90 17.30 17.00 538.01 437.94 100.07 437.62
9 35.00 17.30 17.10 538.03 437.93 100.10 437.62
10 35.10 17.30 17.20 538.06 437.94 100.12 437.59
11 35.10 17.20 17.30 538.15 437.87 100.28 437.53
12 35.00 17.20 17.20 538.15 437.94 100.21 437.67
13 35.20 17.50 17.00 538.23 437.89 100.34 437.68
14 43.80 26.10 17.00 538.19 438.26 99.93 437.94
15 45.30 27.50 17.20 538.41 438.25 100.16 437.76
16 44.90 27.30 17.00 538.31 438.25 100.06 437.99
17 52.80 35.20 17.10 538.35 438.72 99.63 438.55
18 56.20 38.50 17.00 538.27 438.47 99.80 438.23
19 56.30 38.70 17.00 538.19 438.57 99.62 438.36
20 56.20 38.70 16.90 538.15 438.65 99.50 438.53
21 55.80 38.50 16.80 538.04 438.55 99.49 438.37
22 55.80 38.50 16.70 537.98 438.57 99.41 438.59
23 55.30 37.80 16.90 537.99 438.73 99.26 438.44
24 37.00 18.00 16.90 537.73 438.16 99.57 437.93
AVG 41.21 23.59 16.96 538.04 438.16 99.88 437.90
MAX 56.30 38.70 17.30 538.41 438.73 100.34 438.59
MIN 29.70 12.40 16.70 537.73 437.70 99.26 437.27