US Army Corps of Engineers

Lower Monumental Dam

Saturday December 6, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.10 12.50 0.00 538.65 438.64 100.01 438.19
2 13.40 12.80 0.00 538.86 438.93 99.93 438.61
3 13.50 12.90 0.00 538.77 438.90 99.87 438.58
4 13.30 12.70 0.00 538.78 438.84 99.94 438.49
5 13.30 12.70 0.00 538.86 438.93 99.93 438.57
6 13.50 12.90 0.00 538.79 438.87 99.92 438.49
7 18.10 17.50 0.00 539.23 439.05 100.18 438.77
8 18.40 17.80 0.00 539.08 438.95 100.13 438.62
9 18.60 18.00 0.00 539.38 439.07 100.31 438.89
10 26.70 26.10 0.00 539.13 439.40 99.73 439.45
11 28.20 26.10 0.00 539.10 439.13 99.97 439.00
12 26.30 25.70 0.00 538.91 439.31 99.60 439.19
13 13.70 13.10 0.00 538.87 439.23 99.64 439.14
14 13.20 12.60 0.00 538.91 439.26 99.65 439.22
15 13.30 12.70 0.00 538.88 439.10 99.78 438.87
16 13.90 13.30 0.00 538.89 439.23 99.66 439.16
17 26.60 26.00 0.00 538.74 439.26 99.48 439.25
18 26.80 26.20 0.00 539.06 439.10 99.96 438.98
19 26.70 26.10 0.00 538.85 439.39 99.46 439.36
20 26.70 26.10 0.00 539.11 439.27 99.84 439.19
21 26.70 26.10 0.00 538.91 439.19 99.72 439.06
22 26.70 26.10 0.00 539.09 439.26 99.83 439.14
23 26.50 25.90 0.00 538.62 439.07 99.55 438.90
24 13.60 13.00 0.00 538.81 439.03 99.78 438.80
AVG 19.62 18.95 0.00 538.93 439.10 99.83 438.92
MAX 28.20 26.20 0.00 539.38 439.40 100.31 439.45
MIN 13.10 12.50 0.00 538.62 438.64 99.46 438.19
BUILDING STRONG®