US Army Corps of Engineers

Lower Monumental Dam

Friday December 5, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.10 12.50 0.00 538.85 439.05 99.80 438.82
2 13.00 12.40 0.00 539.19 438.69 100.50 438.25
3 13.20 12.60 0.00 538.87 438.93 99.94 438.66
4 13.20 12.60 0.00 539.22 438.99 100.23 438.71
5 14.20 13.60 0.00 538.84 438.98 99.86 438.87
6 39.30 38.70 0.00 539.21 439.44 99.77 439.41
7 40.30 39.70 0.00 539.35 439.22 100.13 439.08
8 39.90 39.30 0.00 539.10 439.46 99.64 439.53
9 39.80 39.20 0.00 539.33 439.32 100.01 439.26
10 39.40 38.80 0.00 538.71 438.99 99.72 438.68
11 27.30 26.70 0.00 538.84 439.01 99.83 438.80
12 15.30 13.20 0.00 538.52 438.67 99.85 438.25
13 13.30 12.70 0.00 538.73 438.66 100.07 438.23
14 13.20 12.60 0.00 538.65 438.74 99.91 438.31
15 13.90 13.30 0.00 538.56 438.79 99.77 438.48
16 27.10 26.50 0.00 538.54 439.23 99.31 439.15
17 28.30 26.20 0.00 538.77 438.77 100.00 438.41
18 26.80 26.20 0.00 538.65 439.13 99.52 439.06
19 26.70 26.10 0.00 538.79 438.88 99.91 438.66
20 14.00 13.40 0.00 538.83 438.74 100.09 438.37
21 13.50 12.90 0.00 538.65 438.97 99.68 438.70
22 13.40 12.80 0.00 538.80 438.68 100.12 438.22
23 13.30 12.70 0.00 538.67 438.90 99.77 438.61
24 13.20 12.60 0.00 538.88 438.92 99.96 438.62
AVG 21.86 21.14 0.00 538.86 438.96 99.89 438.72
MAX 40.30 39.70 0.00 539.35 439.46 100.50 439.53
MIN 13.00 12.40 0.00 538.52 438.66 99.31 438.22
BUILDING STRONG®