Ice Harbor Dam
Saturday June 20, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 29.90 | 12.50 | 16.90 | 438.14 | 339.58 | 98.56 | 340.43 |
| 2 | 29.90 | 12.50 | 16.90 | 438.15 | 339.71 | 98.44 | 340.51 |
| 3 | 29.90 | 12.60 | 16.90 | 438.18 | 339.68 | 98.50 | 340.40 |
| 4 | 29.40 | 12.50 | 16.40 | 438.13 | 339.66 | 98.47 | 340.43 |
| 5 | 29.60 | 12.50 | 16.60 | 438.08 | 339.59 | 98.49 | 340.74 |
| 6 | 34.10 | 12.50 | 19.60 | 438.09 | 339.68 | 98.41 | 340.80 |
| 7 | 33.10 | 12.50 | 20.10 | 438.09 | 339.78 | 98.31 | 340.73 |
| 8 | 33.10 | 12.50 | 20.10 | 438.02 | 339.66 | 98.36 | 340.77 |
| 9 | 33.10 | 12.50 | 20.00 | 438.02 | 339.80 | 98.22 | 340.84 |
| 10 | 33.10 | 12.60 | 20.00 | 438.01 | 339.86 | 98.15 | 340.86 |
| 11 | 33.10 | 12.60 | 20.00 | 437.98 | 339.78 | 98.20 | 340.75 |
| 12 | 33.00 | 12.60 | 19.90 | 437.94 | 339.89 | 98.05 | 340.81 |
| 13 | 34.30 | 12.60 | 21.20 | 437.92 | 340.03 | 97.89 | 340.83 |
| 14 | 34.90 | 12.60 | 21.80 | 437.95 | 340.01 | 97.94 | 340.98 |
| 15 | 35.00 | 12.60 | 21.90 | 437.88 | 340.04 | 97.84 | 340.88 |
| 16 | 34.90 | 12.60 | 21.80 | 437.88 | 339.98 | 97.90 | 340.98 |
| 17 | 36.40 | 12.60 | 21.80 | 437.79 | 340.70 | 97.09 | 341.38 |
| 18 | 35.20 | 12.70 | 22.00 | 437.73 | 340.13 | 97.60 | 341.02 |
| 19 | 35.20 | 12.70 | 22.00 | 437.71 | 340.15 | 97.56 | 341.08 |
| 20 | 35.10 | 12.70 | 22.00 | 437.59 | 340.04 | 97.55 | 341.05 |
| 21 | 35.00 | 12.60 | 21.90 | 437.58 | 340.16 | 97.42 | 340.92 |
| 22 | 35.10 | 12.70 | 21.90 | 437.50 | 340.16 | 97.34 | 340.89 |
| 23 | 35.00 | 12.70 | 21.80 | 437.50 | 340.24 | 97.26 | 341.04 |
| 24 | 35.00 | 12.70 | 21.80 | 437.55 | 340.20 | 97.35 | 341.13 |
|
| AVG | 33.43 | 12.59 | 20.22 | 437.89 | 339.94 | 97.95 | 340.84 |
|
| MAX | 36.40 | 12.70 | 22.00 | 438.18 | 340.70 | 98.56 | 341.38 |
| MIN | 29.40 | 12.50 | 16.40 | 437.50 | 339.58 | 97.09 | 340.40 |