US Army Corps of Engineers

Rock Island Dam

Thursday August 6, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage 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