US Army Corps of Engineers

Lower Monumental Dam

Monday February 16, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 26.70 26.50 0.00 538.80 439.33 99.47 439.29
2 27.00 26.80 0.00 539.07 439.26 99.81 439.20
3 27.10 26.90 0.00 538.61 439.24 99.37 439.19
4 27.30 27.10 0.00 538.59 439.25 99.34 439.21
5 27.00 26.80 0.00 538.39 439.24 99.15 439.19
6 28.20 28.00 0.00 538.56 439.46 99.10 440.17
7 42.30 40.60 0.00 538.74 439.51 99.23 439.52
8 40.80 40.60 0.00 538.71 439.55 99.16 439.59
9 40.70 40.50 0.00 538.79 439.61 99.18 439.69
10 40.60 40.40 0.00 538.72 439.55 99.17 439.61
11 40.40 40.20 0.00 538.83 439.37 99.46
12
13
14
15
16
17
18
19
20
21
22
23
24
AVG 33.46 33.13 0.00 538.71 439.40 99.31 439.47
MAX 42.30 40.60 0.00 539.07 439.61 99.81 440.17
MIN 26.70 26.50 0.00 538.39 439.24 99.10 439.19