Rock Island Dam
Friday August 7, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
| 1 | 95.10 | 84.10 | 11.10 | 612.47 | 567.99 | 44.48 |
| 2 | 77.00 | 74.40 | 2.50 | 612.11 | 569.91 | 42.20 |
| 3 | 129.80 | 129.90 | 0.00 | 611.61 | 569.77 | 41.84 |
| 4 | 69.90 | 70.00 | 0.00 | 612.35 | 567.34 | 45.01 |
| 5 | 34.30 | 34.30 | 0.00 | 612.26 | 566.69 | 45.57 |
| 6 | 60.40 | 60.40 | 0.00 | 612.35 | 568.56 | 43.79 |
| 7 | 70.50 | 70.50 | 0.00 | 612.43 | 569.51 | 42.92 |
| 8 | 109.80 | 109.80 | 0.00 | 612.56 | 568.72 | 43.84 |
| 9 | 128.10 | 128.10 | 0.00 | 612.32 | 571.42 | 40.90 |
| 10 | 141.70 | 141.70 | 0.00 | 612.35 | 570.57 | 41.78 |
| 11 | 121.30 | 121.30 | 0.00 | 612.15 | 570.00 | 42.15 |
| 12 | 103.60 | 103.60 | 0.00 | 612.00 | 570.02 | 41.98 |
| 13 | 109.30 | 109.30 | 0.00 | 611.23 | 570.08 | 41.15 |
| 14 | 86.30 | 86.30 | 0.00 | 612.01 | 568.35 | 43.66 |
| 15 | 81.60 | 81.60 | 0.00 | 612.32 | 569.46 | 42.86 |
| 16 | 106.80 | 106.80 | 0.00 | 612.26 | 570.30 | 41.96 |
| 17 | 141.40 | 141.40 | 0.00 | 612.22 | 571.13 | 41.09 |
| 18 | 146.30 | 146.30 | 0.00 | 612.17 | 571.65 | 40.52 |
| 19 | 143.70 | 143.70 | 0.00 | 612.38 | 571.51 | 40.87 |
| 20 | 156.00 | 156.00 | 0.00 | 612.32 | 572.18 | 40.14 |
| 21 | | | | | | |
| 22 | | | | | | |
| 23 | | | | | | |
| 24 | | | | | | |
|
| AVG | 105.64 | 104.97 | 0.68 | 612.19 | 569.76 | 42.44 |
|
| MAX | 156.00 | 156.00 | 11.10 | 612.56 | 572.18 | 45.57 |
| MIN | 34.30 | 34.30 | 0.00 | 611.23 | 566.69 | 40.14 |