US Army Corps of Engineers

Lower Monumental Dam

Friday April 10, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadNav Lock Tailwater Elevation
1 62.50 12.20 49.70 538.30 438.75 99.55 439.18
2 62.40 12.20 49.60 538.27 438.78 99.49 439.18
3 60.90 12.10 48.20 538.30 438.75 99.55 439.06
4 60.90 12.20 48.10 538.28 438.78 99.50 439.17
5 61.00 12.20 48.20 538.30 438.75 99.55 439.12
6 61.00 12.20 48.20 538.25 438.76 99.49 439.05
7 61.00 12.20 48.20 538.28 438.74 99.54 439.17
8 61.00 12.20 48.20 538.26 438.70 99.56 439.11
9 61.00 12.20 48.20 538.27 438.75 99.52 439.09
10 61.10 12.20 48.30 538.24 438.76 99.48 439.03
11 60.80 12.20 48.10 538.26 438.74 99.52 439.01
12 61.10 12.30 48.20 538.26 438.77 99.49 439.17
13 60.90 12.20 48.10 538.27 438.44 99.83 438.85
14 60.80 12.20 48.00 538.27 438.69 99.58 438.99
15 60.60 12.20 47.80 538.28 438.70 99.58 438.98
16 60.60 12.10 47.80 538.30 438.68 99.62 438.94
17 60.80 12.20 48.00 538.27 438.73 99.54 439.07
18 60.90 12.30 48.00 538.28 438.72 99.56 439.07
19 60.90 12.20 48.10 538.32 438.71 99.61 438.99
20 60.70 12.20 47.90 538.32 438.70 99.62 439.01
21 61.00 12.10 48.30 538.40 438.69 99.71 438.91
22 61.40 12.20 48.60 538.33 438.68 99.65 439.00
23 61.10 12.20 48.30 538.36 438.72 99.64 439.08
24 60.90 12.10 48.20 538.38 438.73 99.65 439.09
AVG 61.05 12.19 48.26 538.29 438.72 99.58 439.06
MAX 62.50 12.30 49.70 538.40 438.78 99.83 439.18
MIN 60.60 12.10 47.80 538.24 438.44 99.48 438.85