US Army Corps of Engineers

Lower Monumental Dam

Tuesday December 16, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 27.30 26.70 0.00 538.75 438.90 99.85 438.61
2 27.40 26.80 0.00 539.02 438.73 100.29 438.32
3 27.30 26.70 0.00 538.83 438.89 99.94 438.56
4 27.30 26.70 0.00 539.08 438.82 100.26 438.47
5 27.20 26.60 0.00 538.93 438.84 100.09 438.54
6 27.80 27.20 0.00 539.01 438.97 100.04 438.83
7 35.20 34.60 0.00 539.05 439.02 100.03 438.77
8 35.50 34.90 0.00 539.08 439.06 100.02 438.82
9 35.20 34.60 0.00 539.11 439.12 99.99 438.94
10 27.40 26.80 0.00 539.11 438.94 100.17 438.70
11 28.60 26.50 0.00 539.06 439.02 100.04 438.86
12 27.20 26.60 0.00 539.15 438.89 100.26 438.71
13 26.90 26.30 0.00 539.08 438.99 100.09 438.85
14 27.20 26.60 0.00 539.16 439.03 100.13 438.82
15 28.20 27.60 0.00 539.03 439.14 99.89 439.00
16 47.60 47.00 0.00 538.95 439.46 99.49 439.44
17 47.80 47.20 0.00 539.01 439.29 99.72 439.12
18 47.50 46.90 0.00 538.83 439.53 99.30 439.54
19 47.50 46.90 0.00 538.87 439.49 99.38 439.45
20 47.90 47.30 0.00 538.75 439.44 99.31 439.40
21 49.50 47.40 0.00 538.78 439.56 99.22 439.60
22 47.40 46.80 0.00 538.69 439.39 99.30 439.39
23 35.80 35.20 0.00 538.78 439.24 99.54 439.18
24 27.50 26.90 0.00 538.74 439.10 99.64 438.96
AVG 34.76 34.03 0.00 538.95 439.12 99.83 438.96
MAX 49.50 47.40 0.00 539.16 439.56 100.29 439.60
MIN 26.90 26.30 0.00 538.69 438.73 99.22 438.32