US Army Corps of Engineers

Lower Monumental Dam

Thursday August 28, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 24.40 6.30 16.00 538.62 438.70 99.92 438.82
2 22.90 6.30 16.00 538.62 439.00 99.62 439.09
3 22.80 6.30 15.90 538.65 438.71 99.94 438.87
4 22.90 6.30 16.00 538.60 438.74 99.86 438.77
5 24.40 6.30 16.00 538.68 438.83 99.85 438.93
6 22.80 6.30 15.90 538.58 438.81 99.77 438.87
7 17.00 6.20 10.20 538.77 439.02 99.75 438.94
8 15.10 6.30 8.20 538.73 438.82 99.91 438.61
9 15.10 6.30 8.30 538.91 438.82 100.09 438.52
10 15.30 6.30 8.40 538.97 438.95 100.02 438.75
11 15.20 6.20 8.40 539.11 438.76 100.35 438.50
12 14.30 5.20 8.50 539.16 438.32 100.84 438.59
13 21.60 12.40 8.60 539.13 438.23 100.90 438.55
14 21.50 12.20 8.70 539.28 438.19 101.09
15 21.60 12.40 8.60 539.11 438.36 100.75 438.65
16 22.20 12.90 8.70 539.26 438.31 100.95 438.51
17 33.60 24.00 9.00 539.00 438.67 100.33 438.70
18 34.30 24.40 9.20 539.30 438.59 100.71 438.38
19 33.80 24.50 8.70 539.07 438.72 100.35 438.59
20 34.30 25.10 8.60 539.24 438.61 100.63 438.47
21 34.50 25.30 8.70 539.09 438.59 100.50 438.43
22 33.80 24.80 8.40 539.07 438.55 100.52 438.41
23 21.90 12.70 8.50 538.98 438.06 100.92 438.17
24 21.00 12.10 8.30 538.83 438.26 100.57 438.48
AVG 23.60 12.38 10.49 538.95 438.61 100.34 438.64
MAX 34.50 25.30 16.00 539.30 439.02 101.09 439.09
MIN 14.30 5.20 8.20 538.58 438.06 99.62 438.17