Lower Monumental Dam
Tuesday September 15, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 14.70 | 12.60 | 0.00 | 538.44 | 438.92 | 99.52 | 439.18 |
| 2 | 13.50 | 12.90 | 0.00 | 538.31 | 439.01 | 99.30 | 439.25 |
| 3 | 13.40 | 12.80 | 0.00 | 538.55 | 438.87 | 99.68 | 439.02 |
| 4 | 13.20 | 12.60 | 0.00 | 538.25 | 438.83 | 99.42 | 439.03 |
| 5 | 13.70 | 12.90 | 0.00 | 538.52 | 438.92 | 99.60 | 439.41 |
| 6 | 20.90 | 12.40 | 7.90 | 538.17 | 438.45 | 99.72 | 439.29 |
| 7 | 24.60 | 14.70 | 7.90 | 538.53 | 438.48 | 100.05 | 439.27 |
| 8 | 23.10 | 14.50 | 8.00 | 538.30 | 438.70 | 99.60 | 439.62 |
| 9 | 23.20 | 14.80 | 7.80 | 538.44 | 438.69 | 99.75 | 439.49 |
| 10 | 23.10 | 14.50 | 7.90 | 538.40 | 438.59 | 99.81 | 439.35 |
| 11 | 23.10 | 14.70 | 7.80 | 538.37 | 438.63 | 99.74 | 439.43 |
| 12 | 23.50 | 15.00 | 7.90 | 538.43 | 438.54 | 99.89 | 439.25 |
| 13 | 24.60 | 14.70 | 7.80 | 538.20 | 438.58 | 99.62 | 439.39 |
| 14 | 23.00 | 14.50 | 7.90 | 538.48 | 438.49 | 99.99 | 439.29 |
| 15 | 24.60 | 14.70 | 7.90 | 538.26 | 438.79 | 99.47 | 439.73 |
| 16 | 24.70 | 14.80 | 7.80 | 538.39 | 438.67 | 99.72 | 439.32 |
| 17 | 23.70 | 15.20 | 7.90 | 538.15 | 438.70 | 99.45 | 439.38 |
| 18 | 26.50 | 25.70 | 0.20 | 538.35 | 439.15 | 99.20 | 439.52 |
| 19 | 26.20 | 25.60 | 0.00 | 538.34 | 439.03 | 99.31 | 439.26 |
| 20 | 26.20 | 25.60 | 0.00 | 538.23 | 439.14 | 99.09 | 439.52 |
| 21 | 26.20 | 25.60 | 0.00 | 538.41 | 439.09 | 99.32 | 439.44 |
| 22 | 26.00 | 25.40 | 0.00 | 538.25 | 439.06 | 99.19 | 439.41 |
| 23 | 13.70 | 13.10 | 0.00 | 538.45 | 439.08 | 99.37 | 439.36 |
| 24 | 13.30 | 12.70 | 0.00 | 538.25 | 439.99 | 98.26 | 439.23 |
|
| AVG | 21.20 | 16.33 | 3.95 | 538.35 | 438.85 | 99.50 | 439.35 |
|
| MAX | 26.50 | 25.70 | 8.00 | 538.55 | 439.99 | 100.05 | 439.73 |
| MIN | 13.20 | 12.40 | 0.00 | 538.15 | 438.45 | 98.26 | 439.02 |