US Army Corps of Engineers

Lower Monumental Dam

Tuesday March 3, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 27.00 26.70 0.00 539.08 439.53 99.55 439.59
2 26.90 26.60 0.00 539.28 439.26 100.02 439.13
3 26.80 26.50 0.00 539.16 439.44 99.72 439.43
4 26.70 26.40 0.00 539.28 439.38 99.90 439.39
5 27.80 27.50 0.00 539.16 439.39 99.77 439.46
6 41.80 41.50 0.00 539.12 439.66 99.46 439.78
7 42.50 42.20 0.00 539.32 439.55 99.77 439.64
8 41.80 41.50 0.00 539.09 439.68 99.41 439.85
9 28.20 27.90 0.00 539.49 439.45 100.04 439.50
10 27.20 26.90 0.00 538.96 439.49 99.47 439.54
11 27.20 26.90 0.00 539.44 439.39 100.05 439.35
12 27.60 27.30 0.00 539.07 439.35 99.72 439.35
13 27.80 27.50 0.00 539.40 439.43 99.97 439.45
14 27.40 27.10 0.00 539.16 439.32 99.84 439.24
15 27.60 27.30 0.00 539.29 439.35 99.94 439.31
16 27.10 26.80 539.28 439.32 99.96 439.28
17 28.30 28.00 0.00 539.16 439.39 99.77 439.40
18 44.80 44.50 0.00 539.14 439.55 99.59 439.66
19 47.80 47.50 0.00 539.13 439.72 99.41 439.83
20 49.00 48.70 0.00 539.15 439.93 99.22 440.23
21 41.10 40.80 0.00 539.18 439.63 99.55 439.83
22 41.10 40.80 0.00 539.06 439.74 99.32 439.91
23 41.80 41.50 0.00 539.23 439.66 99.57 439.81
24 28.10 27.80 0.00 539.23 439.54 99.69 439.59
AVG 33.48 33.17 0.00 539.20 439.51 99.70 439.57
MAX 49.00 48.70 0.00 539.49 439.93 100.05 440.23
MIN 26.70 26.40 0.00 538.96 439.26 99.22 439.13
BUILDING STRONG®