The Dalles 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 | | | | 223.10 | 225.50 | 170.30 | 49.80 | 158.99 | 158.84 | 80.24 | 78.60 |
| 2 | | | | 203.00 | 204.30 | 171.00 | 27.50 | 158.73 | 158.14 | 79.77 | 78.37 |
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| TOT | | | | | | | | | | | |
| AVG | | | | 213.05 | 214.90 | 170.65 | 38.65 | 158.86 | 158.49 | 80.00 | 78.48 |
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| MAX | | | | 223.10 | 225.50 | 171.00 | 49.80 | 158.99 | 158.84 | 80.24 | 78.60 |
| MIN | | | | 203.00 | 204.30 | 170.30 | 27.50 | 158.73 | 158.14 | 79.77 | 78.37 |