Ice Harbor Dam
Sunday May 3, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 57.10 | 12.70 | 43.90 | 438.09 | 341.32 | 96.77 | 342.11 |
| 2 | 57.20 | 12.70 | 44.00 | 438.03 | 341.29 | 96.74 | 342.08 |
| 3 | 57.20 | 12.70 | 44.00 | 438.08 | 341.24 | 96.84 | 342.00 |
| 4 | 58.60 | 12.70 | 43.90 | 438.06 | 341.23 | 96.83 | 341.91 |
| 5 | 57.20 | 12.70 | 44.00 | 438.07 | 341.27 | 96.80 | 342.10 |
| 6 | 57.20 | 12.70 | 44.00 | 438.01 | 341.21 | 96.80 | 341.89 |
| 7 | 57.10 | 12.70 | 43.90 | 438.01 | 341.16 | 96.85 | 341.87 |
| 8 | 57.10 | 12.70 | 44.00 | 438.00 | 341.20 | 96.80 | 341.82 |
| 9 | 57.10 | 12.70 | 44.00 | 438.00 | 341.20 | 96.80 | 341.91 |
| 10 | 57.20 | 12.70 | 44.00 | 437.99 | 341.13 | 96.86 | 341.87 |
| 11 | 57.10 | 12.60 | 44.00 | 437.96 | 341.21 | 96.75 | 341.81 |
| 12 | 58.60 | 12.70 | 43.90 | 437.89 | 341.20 | 96.69 | 341.83 |
| 13 | 57.10 | 12.70 | 43.90 | 437.91 | 341.13 | 96.78 | 341.85 |
| 14 | 64.30 | 12.70 | 51.10 | 438.12 | 341.83 | 96.29 | 342.73 |
| 15 | 68.30 | 12.70 | 55.10 | 438.16 | 341.90 | 96.26 | 342.61 |
| 16 | 68.30 | 12.70 | 55.10 | 438.18 | 341.98 | 96.20 | 342.78 |
| 17 | 68.30 | 12.70 | 55.10 | 438.21 | 341.97 | 96.24 | 342.75 |
| 18 | 69.80 | 12.80 | 55.00 | 438.25 | 341.96 | 96.29 | 342.89 |
| 19 | 69.70 | 12.80 | 55.00 | 438.29 | 341.99 | 96.30 | 342.83 |
| 20 | 69.60 | 12.70 | 56.50 | 438.18 | 342.19 | 95.99 | 342.95 |
| 21 | 69.70 | 12.70 | 56.50 | 438.22 | 342.07 | 96.15 | 342.78 |
| 22 | 69.80 | 12.80 | 56.50 | 438.16 | 342.20 | 95.96 | 342.74 |
| 23 | 69.80 | 12.80 | 56.50 | 438.17 | 342.15 | 96.02 | 342.71 |
| 24 | 69.70 | 12.80 | 56.40 | 438.13 | 342.15 | 95.98 | 342.82 |
|
| AVG | 62.63 | 12.72 | 49.18 | 438.09 | 341.59 | 96.50 | 342.32 |
|
| MAX | 69.80 | 12.80 | 56.50 | 438.29 | 342.20 | 96.86 | 342.95 |
| MIN | 57.10 | 12.60 | 43.90 | 437.89 | 341.13 | 95.96 | 341.81 |