US Army Corps of Engineers

Lower Monumental Dam

Friday August 29, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 21.20 12.20 8.50 539.01 438.09 100.92 438.20
2 22.60 12.10 8.40 538.79 438.10 100.69 438.32
3 21.20 12.10 8.40 539.23 438.29 100.94 438.54
4 21.20 12.10 8.50 538.88 438.13 100.75 438.43
5 21.10 12.20 8.30 538.99 438.26 100.73 438.48
6 21.30 12.20 8.50 538.94 438.24 100.70 438.45
7 22.60 12.10 8.40 538.97 438.22 100.75 438.44
8 21.20 12.10 8.50 538.98 438.26 100.72 438.53
9 21.10 12.10 8.40 538.99 438.16 100.83 438.42
10 21.30 12.20 8.50 539.04 438.24 100.80 438.47
11 21.30 12.20 8.40 538.91 438.25 100.66 438.44
12 21.30 12.30 8.50 539.03 438.22 100.81 438.47
13 24.30 15.30 8.40 538.92 438.41 100.51 438.62
14 24.50 15.50 8.40 538.95 438.34 100.61 438.49
15 24.60 15.60 8.40 538.81 438.47 100.34 438.68
16 24.50 15.60 8.30 538.88 438.46 100.42 438.57
17 24.80 15.80 8.40 538.88 438.47 100.41 438.65
18 24.80 15.90 8.30 538.84 438.54 100.30 438.77
19 24.70 15.70 8.30 538.87 438.50 100.37 438.72
20 25.10 16.20 8.30 538.76 438.56 100.20 438.83
21 25.30 16.40 8.30 538.85 438.59 100.26 438.91
22 25.10 16.20 8.30 538.80 438.61 100.19 438.84
23 21.60 12.70 8.30 538.86 438.49 100.37 438.92
24 21.10 12.30 8.30 538.78 438.48 100.30 438.86
AVG 22.83 13.71 8.39 538.91 438.35 100.57 438.59
MAX 25.30 16.40 8.50 539.23 438.61 100.94 438.92
MIN 21.10 12.10 8.30 538.76 438.09 100.19 438.20