Ice Harbor Dam
Thursday April 9, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
| 1 | 59.50 | 13.00 | 46.00 | 437.71 | 341.30 | 96.41 | 342.04 |
| 2 | 59.50 | 13.00 | 46.00 | 437.83 | 341.31 | 96.52 | 342.05 |
| 3 | 59.20 | 12.90 | 45.90 | 437.75 | 341.36 | 96.39 | 341.98 |
| 4 | 59.30 | 12.90 | 45.90 | 437.66 | 341.29 | 96.37 | 342.02 |
| 5 | 60.90 | 13.00 | 45.90 | 437.69 | 341.37 | 96.32 | 341.98 |
| 6 | 59.40 | 13.00 | 45.90 | 437.71 | 341.30 | 96.41 | 342.04 |
| 7 | 59.50 | 13.00 | 46.00 | 437.73 | 341.28 | 96.45 | 341.99 |
| 8 | 61.10 | 12.90 | 46.10 | 437.84 | 341.35 | 96.49 | 342.22 |
| 9 | 59.60 | 12.90 | 46.20 | 437.88 | 341.27 | 96.61 | 341.96 |
| 10 | 59.80 | 13.00 | 46.30 | 437.98 | 341.45 | 96.53 | 342.02 |
| 11 | 59.80 | 12.90 | 46.30 | 438.00 | 341.28 | 96.72 | 341.96 |
| 12 | 59.80 | 13.00 | 46.40 | 438.04 | 341.30 | 96.74 | 341.98 |
| 13 | 59.80 | 13.00 | 46.40 | 438.10 | 341.44 | 96.66 | 341.95 |
| 14 | 65.30 | 12.90 | 51.90 | 438.07 | 341.70 | 96.37 | 342.50 |
| 15 | 66.90 | 12.90 | 52.10 | 438.21 | 341.85 | 96.36 | 342.62 |
| 16 | 65.40 | 12.80 | 52.10 | 438.18 | 341.77 | 96.41 | 342.49 |
| 17 | 65.40 | 12.90 | 52.10 | 438.16 | 341.79 | 96.37 | 342.71 |
| 18 | 65.40 | 12.90 | 52.10 | 438.20 | 341.81 | 96.39 | 342.54 |
| 19 | 65.30 | 12.80 | 52.00 | 438.20 | 341.79 | 96.41 | 342.72 |
| 20 | 65.50 | 12.80 | 52.20 | 438.19 | 341.87 | 96.32 | 342.77 |
| 21 | 67.20 | 12.80 | 53.90 | 438.24 | 342.03 | 96.21 | 342.69 |
| 22 | 68.90 | 12.90 | 54.00 | 438.23 | 342.06 | 96.17 | 342.84 |
| 23 | 67.40 | 12.90 | 54.00 | 438.22 | 342.14 | 96.08 | 342.73 |
| 24 | 67.30 | 12.80 | 54.00 | 438.23 | 342.06 | 96.17 | 342.80 |
|
| AVG | 62.80 | 12.91 | 49.15 | 438.00 | 341.59 | 96.41 | 342.32 |
|
| MAX | 68.90 | 13.00 | 54.00 | 438.24 | 342.14 | 96.74 | 342.84 |
| MIN | 59.20 | 12.80 | 45.90 | 437.66 | 341.27 | 96.08 | 341.95 |