Ice Harbor Dam
Friday May 29, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
| 1 | 79.50 | 13.10 | 65.90 | 438.00 | 343.15 | 94.85 | 343.95 |
| 2 | 79.60 | 13.00 | 66.10 | 438.09 | 343.20 | 94.89 | 343.80 |
| 3 | 79.60 | 13.10 | 66.00 | 438.09 | 343.13 | 94.96 | 343.76 |
| 4 | 81.00 | 13.00 | 66.00 | 438.09 | 343.32 | 94.77 | 343.92 |
| 5 | 79.50 | 13.00 | 66.00 | 438.16 | 343.21 | 94.95 | 343.90 |
| 6 | 79.40 | 13.00 | 66.00 | 438.13 | 343.19 | 94.94 | 343.83 |
| 7 | 79.40 | 13.00 | 66.00 | 438.13 | 343.12 | 95.01 | 343.78 |
| 8 | 80.90 | 13.00 | 65.90 | 438.02 | 343.21 | 94.81 | 343.98 |
| 9 | 78.90 | 13.00 | 65.40 | 438.00 | 342.95 | 95.05 | 343.56 |
| 10 | 74.60 | 13.00 | 61.10 | 437.97 | 342.75 | 95.22 | 343.39 |
| 11 | 74.50 | 13.00 | 61.00 | 437.96 | 342.82 | 95.14 | 343.36 |
| 12 | 74.50 | 13.00 | 60.90 | 437.95 | 342.73 | 95.22 | 343.38 |
| 13 | 74.50 | 13.00 | 61.00 | 437.93 | 342.77 | 95.16 | 343.36 |
| 14 | 74.40 | 13.00 | 60.90 | 437.88 | 342.78 | 95.10 | 343.46 |
| 15 | 74.40 | 13.00 | 60.90 | 437.89 | 342.78 | 95.11 | 343.32 |
| 16 | 74.30 | 13.00 | 60.80 | 437.82 | 342.76 | 95.06 | 343.37 |
| 17 | 74.20 | 12.90 | 60.80 | 437.80 | 342.70 | 95.10 | 343.35 |
| 18 | 74.30 | 13.00 | 60.80 | 437.78 | 342.73 | 95.05 | 343.40 |
| 19 | 74.40 | 13.00 | 60.90 | 437.78 | 342.69 | 95.09 | 343.47 |
| 20 | 74.70 | 13.00 | 61.20 | 437.99 | 342.72 | 95.27 | 343.43 |
| 21 | 74.70 | 13.00 | 61.20 | 437.97 | 342.71 | 95.26 | 343.40 |
| 22 | 74.50 | 13.00 | 61.10 | 438.07 | 342.73 | 95.34 | 343.40 |
| 23 | 74.70 | 13.00 | 61.30 | 438.15 | 342.73 | 95.42 | 343.35 |
| 24 | 74.60 | 13.00 | 61.10 | 438.15 | 342.72 | 95.43 | 343.35 |
|
| AVG | 76.46 | 13.00 | 62.85 | 437.99 | 342.90 | 95.09 | 343.55 |
|
| MAX | 81.00 | 13.10 | 66.10 | 438.16 | 343.32 | 95.43 | 343.98 |
| MIN | 74.20 | 12.90 | 60.80 | 437.78 | 342.69 | 94.77 | 343.32 |