Ice Harbor Dam
Thursday December 18, 2025
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
| 1 | 26.40 | 25.90 | 0.00 | 438.08 | 339.28 | 98.80 | 339.39 |
| 2 | 13.30 | 12.80 | 0.00 | 438.00 | 338.96 | 99.04 | 339.06 |
| 3 | 14.80 | 12.80 | 0.00 | 438.17 | 339.17 | 99.00 | 339.34 |
| 4 | 13.80 | 13.30 | 0.00 | 438.01 | 339.59 | 98.42 | 339.84 |
| 5 | 27.50 | 27.00 | 0.00 | 437.86 | 340.96 | 96.90 | 340.86 |
| 6 | 40.30 | 39.80 | 0.00 | 437.93 | 341.51 | 96.42 | 341.30 |
| 7 | 42.10 | 40.10 | 0.00 | 437.94 | 341.96 | 95.98 | 341.75 |
| 8 | 40.70 | 40.20 | 0.00 | 438.32 | 341.49 | 96.83 | 341.30 |
| 9 | 40.60 | 40.10 | 0.00 | 438.38 | 341.54 | 96.84 | 341.33 |
| 10 | 40.70 | 40.20 | 0.00 | 438.58 | 341.55 | 97.03 | 341.35 |
| 11 | 40.60 | 40.10 | 0.00 | 438.86 | 341.54 | 97.32 | 341.39 |
| 12 | 40.60 | 40.10 | 0.00 | 438.52 | 341.57 | 96.95 | 341.41 |
| 13 | 40.60 | 40.10 | 0.00 | 438.72 | 341.68 | 97.04 | 341.49 |
| 14 | 53.10 | 52.60 | 0.00 | 438.47 | 342.83 | 95.64 | 342.60 |
| 15 | 53.80 | 53.30 | 0.00 | 438.63 | 343.07 | 95.56 | 342.72 |
| 16 | 55.00 | 53.00 | 0.00 | 438.45 | 342.89 | 95.56 | 342.62 |
| 17 | 53.70 | 53.20 | 0.00 | 438.59 | 343.00 | 95.59 | 342.72 |
| 18 | 53.70 | 53.20 | 0.00 | 438.72 | 342.99 | 95.73 | 342.71 |
| 19 | 54.90 | 52.90 | 0.00 | 438.75 | 343.02 | 95.73 | 342.63 |
| 20 | 53.70 | 53.20 | 0.00 | 438.76 | 342.96 | 95.80 | 342.62 |
| 21 | 53.60 | 53.10 | 0.00 | 438.79 | 343.03 | 95.76 | 342.66 |
| 22 | 53.80 | 53.30 | 0.00 | 438.91 | 343.07 | 95.84 | 342.73 |
| 23 | 53.40 | 52.90 | 0.00 | 438.96 | 342.96 | 96.00 | 342.70 |
| 24 | 53.30 | 52.80 | 0.00 | 438.67 | 342.95 | 95.72 | 342.59 |
|
| AVG | 42.25 | 41.50 | 0.00 | 438.46 | 341.82 | 96.65 | 341.63 |
|
| MAX | 55.00 | 53.30 | 0.00 | 438.96 | 343.07 | 99.04 | 342.73 |
| MIN | 13.30 | 12.80 | 0.00 | 437.86 | 338.96 | 95.56 | 339.06 |