Rock Island Dam
Thursday August 6, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 56.70 | 56.70 | 0.00 | 611.30 | 568.35 | 42.95 |
| 2 | 49.10 | 49.10 | 0.00 | 611.69 | 568.45 | 43.24 |
| 3 | 43.20 | 43.20 | 0.00 | 611.72 | 568.23 | 43.49 |
| 4 | 37.30 | 37.30 | 0.00 | 611.58 | 567.50 | 44.08 |
| 5 | 23.20 | 23.20 | 0.00 | 611.72 | 567.05 | 44.67 |
| 6 | 21.70 | 21.70 | 0.00 | 611.66 | 567.37 | 44.29 |
| 7 | 33.20 | 33.20 | 0.00 | 612.25 | 566.70 | 45.55 |
| 8 | 49.00 | 49.00 | 0.00 | 612.24 | 567.10 | 45.14 |
| 9 | 56.70 | 56.70 | 0.00 | 612.14 | 567.39 | 44.75 |
| 10 | 61.80 | 61.80 | 0.00 | 612.22 | 567.16 | 45.06 |
| 11 | 68.30 | 68.30 | 0.00 | 612.22 | 567.39 | 44.83 |
| 12 | 70.20 | 70.20 | 0.00 | 612.19 | 567.72 | 44.47 |
| 13 | 67.80 | 67.80 | 0.00 | 612.32 | 567.26 | 45.06 |
| 14 | 66.90 | 66.90 | 0.00 | 612.60 | 567.59 | 45.01 |
| 15 | 119.30 | 119.20 | 0.00 | 611.94 | 570.38 | 41.56 |
| 16 | 138.00 | 138.00 | 0.00 | 611.86 | 570.76 | 41.10 |
| 17 | 138.60 | 138.60 | 0.00 | 611.89 | 570.57 | 41.32 |
| 18 | 142.70 | 142.70 | 0.00 | 611.60 | 571.08 | 40.52 |
| 19 | 143.10 | 143.10 | 0.00 | 611.69 | 571.00 | 40.69 |
| 20 | 130.80 | 130.80 | 0.00 | 612.45 | 570.30 | 42.15 |
| 21 | 138.20 | 138.20 | 0.00 | 612.00 | 570.54 | 41.46 |
| 22 | 137.50 | 137.60 | 0.00 | 611.74 | 570.11 | 41.63 |
| 23 | 108.10 | 108.10 | 0.00 | 612.28 | 569.43 | 42.85 |
| 24 | 107.30 | 107.30 | 0.00 | 612.47 | 569.32 | 43.15 |
|
| AVG | 83.70 | 83.70 | 0.00 | 611.99 | 568.70 | 43.29 |
|
| MAX | 143.10 | 143.10 | 0.00 | 612.60 | 571.08 | 45.55 |
| MIN | 21.70 | 21.70 | 0.00 | 611.30 | 566.70 | 40.52 |