US Army Corps of Engineers

Rock Island Dam

Sunday August 2, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 86.70 65.50 21.20 612.23 568.00 44.23
2 46.20 25.70 20.60 611.69 567.78 43.91
3 49.70 29.70 20.10 611.88 567.93 43.95
4 52.40 31.80 20.60 612.09 567.34 44.75
5 47.90 26.70 21.20 612.26 567.93 44.33
6 74.70 53.60 21.10 612.30 567.83 44.47
7 70.50 49.40 21.20 612.31 568.46 43.85
8 91.40 70.20 21.20 612.46 568.12 44.34
9 95.20 74.00 21.30 612.16 569.15 43.01
10 87.40 74.90 12.50 612.36 568.56 43.80
11 97.60 85.20 12.30 612.35 568.53 43.82
12 65.40 52.90 12.50 612.88 567.83 45.05
13 71.20 58.10 13.10 612.72 568.43 44.29
14 79.70 64.80 14.90 612.82 569.40 43.42
15 110.30 90.70 19.60 612.94 569.64 43.30
16 123.00 107.90 15.00 612.37 569.99 42.38
17 104.50 92.00 12.50 612.33 571.08 41.25
18 118.70 102.40 16.30 612.41 570.96 41.45
19 134.20 118.10 16.10 611.82 571.43 40.39
20 99.90 78.90 21.00 611.97 570.13 41.84
21 102.40 82.50 19.90 611.29 569.58 41.71
22 75.40 55.30 20.10 611.64 569.16 42.48
23 78.00 57.90 20.10 611.47 569.42 42.05
24 82.00 62.20 19.80 611.47 569.56 41.91
AVG 85.18 67.10 18.09 612.18 569.01 43.17
MAX 134.20 118.10 21.30 612.94 571.43 45.05
MIN 46.20 25.70 12.30 611.29 567.34 40.39
BUILDING STRONG®