US Army Corps of Engineers

Lower Monumental Dam

Thursday October 30, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.10 12.50 0.00 538.77 438.80 99.97 438.43
2 13.10 12.50 0.00 538.74 438.81 99.93 438.45
3 13.10 12.50 0.00 538.79 438.83 99.96 438.45
4 13.10 12.50 0.00 538.72 438.81 99.91 438.45
5 13.60 12.60 0.40 538.72 438.76 99.96 438.86
6 25.00 16.30 8.10 538.57 438.49 100.08 438.69
7 25.90 17.20 8.10 538.70 438.42 100.28 438.49
8 25.80 17.00 8.10 538.57 438.52 100.05 438.67
9 25.30 16.80 7.90 538.69 438.32 100.37 437.87
10 13.50 12.90 0.00 538.67 438.55 100.12 438.02
11 15.00 14.40 0.00 538.42 438.67 99.75 438.22
12 15.00 14.40 0.00 538.75 438.40 100.35 437.78
13 15.10 14.50 0.00 538.42 438.65 99.77 438.20
14 15.20 14.60 0.00 538.75 438.67 100.08 438.24
15 15.10 14.50 0.00 538.45 438.56 99.89 438.05
16 15.70 15.10 0.00 538.65 438.87 99.78 438.81
17 27.10 26.50 0.00 538.43 438.80 99.63 438.51
18 27.00 26.40 0.00 538.69 438.82 99.87 438.54
19 26.90 26.30 0.00 538.55 439.18 99.37 439.14
20 19.70 17.60 0.00 538.72 438.84 99.88 438.55
21 17.80 17.20 0.00 538.53 439.05 99.48 438.82
22 13.80 13.20 0.00 538.74 438.97 99.77 438.72
23 13.70 13.10 0.00 538.47 438.93 99.54 438.59
24 15.00 12.90 0.00 538.73 438.98 99.75 438.72
AVG 18.07 15.98 1.36 538.63 438.74 99.90 438.47
MAX 27.10 26.50 8.10 538.79 439.18 100.37 439.14
MIN 13.10 12.50 0.00 538.42 438.32 99.37 437.78
BUILDING STRONG®