US Army Corps of Engineers

Rock Island Dam

Friday April 10, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 151.50 135.10 16.40 612.25 571.91 40.34
2 149.30 132.80 16.50 612.31 572.05 40.26
3 147.40 130.90 16.50 612.22 571.80 40.42
4 140.80 124.70 16.10 612.23 571.61 40.62
5 140.60 128.20 12.40 611.89 571.88 40.01
6 145.30 133.20 12.10 611.62 571.83 39.79
7 142.70 130.50 12.20 612.39 571.86 40.53
8 158.50 147.30 11.20 612.85 572.83 40.02
9 161.00 147.40 13.60 612.84 572.84 40.00
10 162.00 130.00 32.00 612.56 572.76 39.80
11 158.10 130.60 27.50 612.51 572.81 39.70
12 149.50 129.50 20.00 612.55 572.30 40.25
13 142.00 126.90 15.10 612.75 571.70 41.05
14 140.60 124.10 16.50 611.92 572.41 39.51
15 95.80 83.80 12.00 611.71 570.10 41.61
16 58.30 46.30 12.00 611.57 568.86 42.71
17 47.60 35.60 12.00 611.71 569.59 42.12
18 55.80 43.80 12.00 611.25 569.59 41.66
19 94.50 82.90 11.60 611.49 570.32 41.17
20 111.30 98.90 12.40 612.11 571.72 40.39
21 154.20 140.30 13.90 611.30 571.94 39.36
22 149.20 135.20 14.00 611.46 571.73 39.73
23 155.50 141.70 13.80 611.18 572.54 38.64
24 162.80 148.00 14.80 611.49 572.84 38.65
AVG 132.26 116.99 15.28 612.01 571.66 40.35
MAX 162.80 148.00 32.00 612.85 572.84 42.71
MIN 47.60 35.60 11.20 611.18 568.86 38.64
BUILDING STRONG®