Ice Harbor Dam
Tuesday August 4, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 20.50 | 12.70 | 7.20 | 437.95 | 338.56 | 99.39 | 339.06 |
| 2 | 20.50 | 12.80 | 7.20 | 437.92 | 338.55 | 99.37 | 339.05 |
| 3 | 20.50 | 12.80 | 7.20 | 437.87 | 338.52 | 99.35 | 339.05 |
| 4 | 22.00 | 12.80 | 7.20 | 437.95 | 338.60 | 99.35 | 339.10 |
| 5 | 22.60 | 13.40 | 7.20 | 437.95 | 339.02 | 98.93 | 339.72 |
| 6 | 33.20 | 25.50 | 7.20 | 438.15 | 339.44 | 98.71 | 340.10 |
| 7 | 20.60 | 12.80 | 7.20 | 438.09 | 338.47 | 99.62 | 339.01 |
| 8 | 20.30 | 12.50 | 7.20 | 438.00 | 338.59 | 99.41 | 339.18 |
| 9 | 21.90 | 12.60 | 7.20 | 438.27 | 338.64 | 99.63 | 339.22 |
| 10 | 30.30 | 22.60 | 7.20 | 438.04 | 340.16 | 97.88 | 340.45 |
| 11 | 35.00 | 25.70 | 7.20 | 438.06 | 340.04 | 98.02 | 340.28 |
| 12 | 33.60 | 25.90 | 7.20 | 437.95 | 339.99 | 97.96 | 340.22 |
| 13 | 20.70 | 13.00 | 7.20 | 437.95 | 338.62 | 99.33 | 339.14 |
| 14 | 20.10 | 12.40 | 7.20 | 438.00 | 338.72 | 99.28 | 339.26 |
| 15 | 20.20 | 12.40 | 7.20 | 438.12 | 338.78 | 99.34 | 339.27 |
| 16 | 21.70 | 12.50 | 7.20 | 438.14 | 338.76 | 99.38 | 339.26 |
| 17 | 32.90 | 25.20 | 7.20 | 438.06 | 340.07 | 97.99 | 340.25 |
| 18 | 33.50 | 25.80 | 7.20 | 438.00 | 340.04 | 97.96 | 340.26 |
| 19 | 33.50 | 25.80 | 7.20 | 437.86 | 340.00 | 97.86 | 340.24 |
| 20 | 33.40 | 25.70 | 7.20 | 437.83 | 339.97 | 97.86 | 340.22 |
| 21 | 34.90 | 25.70 | 7.20 | 437.77 | 340.05 | 97.72 | 340.33 |
| 22 | 33.40 | 25.70 | 7.20 | 437.61 | 339.92 | 97.69 | 340.18 |
| 23 | 24.20 | 16.50 | 7.20 | 437.79 | 338.63 | 99.16 | 339.14 |
| 24 | 20.70 | 13.00 | 7.20 | 437.64 | 338.61 | 99.03 | 339.21 |
|
| AVG | 26.26 | 18.16 | 7.20 | 437.96 | 339.20 | 98.76 | 339.63 |
|
| MAX | 35.00 | 25.90 | 7.20 | 438.27 | 340.16 | 99.63 | 340.45 |
| MIN | 20.10 | 12.40 | 7.20 | 437.61 | 338.47 | 97.69 | 339.01 |