US Army Corps of Engineers

Lower Monumental Dam

Friday October 31, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.60 13.00 0.00 538.52 439.02 99.50 438.76
2 13.70 13.10 0.00 538.70 439.06 99.64 438.94
3 13.70 13.10 0.00 538.60 438.96 99.64 438.66
4 13.70 13.10 0.00 538.58 438.99 99.59 438.73
5 13.80 13.10 0.10 538.67 439.20 99.47 439.05
6 21.80 13.20 8.00 538.47 438.58 99.89 438.96
7 26.00 17.30 8.10 538.66 438.65 100.01 438.92
8 26.10 17.40 8.10 538.47 438.67 99.80 438.82
9 25.80 17.20 8.00 538.59 438.54 100.05 438.57
10 13.70 12.60 0.60 538.59 438.73 99.86 438.32
11 13.00 12.40 0.00 538.45 438.99 99.46 438.69
12 13.00 12.40 0.00 538.65 438.58 100.07 438.06
13 12.90 12.30 0.00 538.41 438.77 99.64 438.40
14 12.90 12.30 0.00 538.71 438.89 99.82 438.54
15 12.90 12.30 0.00 538.41 438.68 99.73 438.28
16 13.00 12.40 0.00 538.68 439.00 99.68 438.79
17 13.50 12.90 0.00 538.51 438.89 99.62 438.60
18 26.70 26.10 0.00 538.76 438.98 99.78 438.82
19 26.90 26.30 0.00 538.69 438.97 99.72 438.75
20 27.00 26.40 0.00 538.67 439.09 99.58 438.94
21 27.00 26.40 0.00 538.69 438.97 99.72 438.79
22 18.60 18.00 0.00 538.65 438.74 99.91 438.30
23 13.50 12.90 0.00 538.70 439.00 99.70 438.78
24 13.20 12.60 0.00 538.69 438.72 99.97 438.30
AVG 17.75 15.78 1.37 538.61 438.86 99.74 438.66
MAX 27.00 26.40 8.10 538.76 439.20 100.07 439.05
MIN 12.90 12.30 0.00 538.41 438.54 99.46 438.06
BUILDING STRONG®