US Army Corps of Engineers

Lower Monumental Dam

Wednesday June 3, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 50.60 12.20 37.90 538.33 438.31 100.02 438.40
2 50.70 12.10 38.00 538.37 438.34 100.03 438.49
3 50.70 12.10 38.00 538.42 438.36 100.06 438.40
4 50.70 12.10 38.00 538.43 438.32 100.11 438.32
5 50.70 12.10 37.90 538.34 438.34 100.00 438.38
6 50.60 12.20 37.80 538.41 438.31 100.10 438.38
7 50.60 12.20 37.80 538.41 438.28 100.13 438.39
8 50.60 12.20 37.80 538.40 438.34 100.06 438.46
9 50.60 12.20 37.80 538.39 438.33 100.06 438.50
10 50.80 12.20 37.90 538.36 438.30 100.06 438.39
11 50.80 12.30 37.90 538.37 438.35 100.02 438.36
12 50.70 12.20 37.90 538.36 438.31 100.05 438.33
13 50.70 12.20 37.90 538.63 438.31 100.32 438.33
14 50.90 12.20 38.20 538.43 438.30 100.13 438.37
15 51.20 12.60 38.00 538.36 438.29 100.07 438.32
16 51.00 12.20 38.10 538.37 438.25 100.12 438.35
17 52.50 12.30 38.10 538.35 438.29 100.06 438.28
18 51.00 12.20 38.10 538.41 438.26 100.15 438.14
19 51.10 12.50 38.00 538.30 438.33 99.97 438.42
20 51.10 12.40 38.10 538.42 438.22 100.20 438.20
21 51.00 12.20 38.20 538.42 438.21 100.21 438.16
22 50.90 12.20 38.10 538.44 438.26 100.18 438.23
23 51.10 12.20 38.20 538.48 438.29 100.19 438.28
24 51.00 12.20 38.10 538.44 438.28 100.16 438.38
AVG 50.90 12.23 37.99 538.40 438.30 100.10 438.35
MAX 52.50 12.60 38.20 538.63 438.36 100.32 438.50
MIN 50.60 12.10 37.80 538.30 438.21 99.97 438.14
BUILDING STRONG®