Ice Harbor Dam
Sunday August 2, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 22.00 | 13.00 | 8.60 | 437.67 | 339.35 | 98.32 | 339.77 |
| 2 | 22.00 | 12.90 | 8.60 | 437.70 | 339.42 | 98.28 | 339.91 |
| 3 | 21.90 | 12.90 | 8.60 | 437.84 | 339.41 | 98.43 | 339.86 |
| 4 | 21.90 | 12.90 | 8.50 | 437.89 | 339.42 | 98.47 | 339.86 |
| 5 | 21.90 | 12.90 | 8.50 | 437.73 | 339.39 | 98.34 | 339.86 |
| 6 | 23.40 | 12.90 | 8.50 | 438.01 | 339.47 | 98.54 | 339.91 |
| 7 | 21.90 | 12.90 | 8.50 | 438.00 | 339.48 | 98.52 | 339.85 |
| 8 | 23.30 | 12.90 | 8.40 | 437.99 | 339.47 | 98.52 | 339.88 |
| 9 | 21.70 | 12.90 | 8.40 | 438.09 | 339.39 | 98.70 | 339.89 |
| 10 | 23.20 | 12.90 | 8.30 | 438.03 | 339.56 | 98.47 | 339.97 |
| 11 | 33.50 | 24.70 | 8.30 | 438.02 | 340.61 | 97.41 | 340.81 |
| 12 | 34.80 | 25.90 | 8.40 | 437.94 | 340.59 | 97.35 | 340.80 |
| 13 | 36.50 | 26.10 | 8.40 | 437.88 | 340.72 | 97.16 | 340.96 |
| 14 | 34.90 | 26.00 | 8.40 | 437.80 | 340.62 | 97.18 | 340.82 |
| 15 | 34.80 | 25.90 | 8.40 | 437.73 | 340.60 | 97.13 | 340.84 |
| 16 | 34.80 | 25.90 | 8.40 | 437.87 | 340.63 | 97.24 | 340.90 |
| 17 | 34.90 | 25.90 | 8.40 | 437.65 | 340.55 | 97.10 | 340.84 |
| 18 | 35.00 | 26.10 | 8.40 | 437.73 | 340.53 | 97.20 | 340.85 |
| 19 | 35.10 | 26.20 | 8.40 | 437.75 | 340.51 | 97.24 | 340.81 |
| 20 | 34.90 | 26.00 | 8.40 | 437.59 | 340.83 | 96.76 | 340.89 |
| 21 | 36.30 | 25.90 | 8.40 | 437.64 | 340.44 | 97.20 | 340.70 |
| 22 | 34.90 | 26.00 | 8.40 | 437.55 | 340.38 | 97.17 | 340.64 |
| 23 | 22.00 | 13.10 | 8.40 | 437.63 | 338.99 | 98.64 | 339.53 |
| 24 | 21.40 | 12.50 | 8.40 | 437.68 | 339.07 | 98.61 | 339.62 |
|
| AVG | 28.62 | 19.39 | 8.43 | 437.81 | 339.98 | 97.83 | 340.32 |
|
| MAX | 36.50 | 26.20 | 8.60 | 438.09 | 340.83 | 98.70 | 340.96 |
| MIN | 21.40 | 12.50 | 8.30 | 437.55 | 338.99 | 96.76 | 339.53 |