Ice Harbor Dam
April 2026
| Day of Month | Total Generation MWh | Average Generation MW | Station Use MWh | Inflow kcfs | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Midnight Reservoir Elevation | Average Forebay Elevation | Average Tailwater Elevation | Average Head feet |
| 1 | 9268 | 386 | 58 | 74.50 | 76.30 | 54.10 | 21.40 | 438.51 | 438.31 | 344.02 | 94.29 |
| 2 | 9242 | 385 | 58 | 69.60 | 72.30 | 54.20 | 17.50 | 437.85 | 437.95 | 343.85 | 94.10 |
| 3 | 2337 | 97 | 57 | 74.10 | 73.60 | 13.40 | 59.60 | 437.96 | 438.09 | 342.71 | 95.38 |
| 4 | 2319 | 97 | 57 | 73.20 | 72.00 | 13.30 | 58.30 | 438.25 | 438.13 | 342.59 | 95.54 |
| 5 | 2277 | 95 | 56 | 68.20 | 69.20 | 13.00 | 55.60 | 437.99 | 438.14 | 342.47 | 95.67 |
| 6 | 2288 | 95 | 56 | 68.20 | 67.90 | 13.00 | 54.10 | 438.07 | 438.11 | 342.14 | 95.97 |
| 7 | | | | 63.90 | 65.60 | 13.00 | 51.90 | 437.67 | 437.94 | 342.06 | 95.88 |
| 8 | | | | 62.40 | 62.20 | 13.00 | 48.60 | 437.69 | 437.67 | 341.53 | 96.14 |
| 9 | | | | 65.00 | 62.80 | 12.90 | 49.20 | 438.23 | 438.00 | 341.59 | 96.41 |
| 10 | | | | 66.00 | 66.30 | 13.00 | 52.90 | 438.13 | 438.14 | 342.02 | 96.12 |
| 11 | | | | 63.80 | 64.70 | 13.10 | 51.00 | 437.94 | 438.07 | 342.12 | 95.95 |
| 12 | | | | 71.40 | 70.90 | 13.10 | 57.00 | 438.07 | 438.00 | 342.57 | 95.43 |
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| TOT | 27729 | | 343 | | | | | | | | |
| AVG | 4622 | 193 | 57 | 68.36 | 68.65 | 19.93 | 48.09 | 438.03 | 438.05 | 342.47 | 95.57 |
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| MAX | 9268 | | | 74.50 | 76.30 | 54.20 | 59.60 | 438.51 | 438.31 | 344.02 | 96.41 |
| MIN | 2277 | | | 62.40 | 62.20 | 12.90 | 17.50 | 437.67 | 437.67 | 341.53 | 94.10 |