US Army Corps of Engineers

Lower Monumental Dam

Tuesday September 2, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 13.30 12.70 0.00 538.67 439.16 99.51 439.04
2 13.30 12.70 0.00 538.44 439.22 99.22 439.10
3 13.30 12.70 0.00 538.51 439.16 99.35 439.07
4 13.20 12.60 0.00 538.52 439.13 99.39 439.02
5 13.60 12.90 0.10 538.39 439.35 99.04 439.32
6 21.40 12.80 8.00 538.48 438.80 99.68 439.33
7 21.30 12.80 8.00 538.35 438.66 99.69 439.15
8 22.40 14.00 7.90 538.45 438.76 99.69 439.19
9 22.70 14.20 7.90 538.37 438.68 99.69 439.06
10 17.70 16.90 0.20 538.44 439.06 99.38 438.81
11 14.50 13.90 0.00 538.39 439.33 99.06 439.21
12 13.30 12.70 0.00 538.38 439.05 99.33
13
14
15
16
17 439.26
18 439.14
19 439.36
20 46.00 45.40 0.00 538.71 439.41 99.30 439.39
21 46.40 45.80 0.00 538.74 439.45 99.29 439.51
22 42.70 42.10 0.00 538.66 439.32 99.34 439.14
23 27.50 26.90 0.00 538.44 439.08 99.36 438.91
24 16.00 15.40 0.00 538.70 439.36 99.34 439.37
AVG 22.27 19.79 1.89 538.51 439.12 99.39 439.18
MAX 46.40 45.80 8.00 538.74 439.45 99.69 439.51
MIN 13.20 12.60 0.00 538.35 438.66 99.04 438.81
BUILDING STRONG®