US Army Corps of Engineers

Rock Island Dam

Wednesday May 21, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 105.20 89.20 16.00 611.57 568.86 42.71
2 103.80 87.20 16.60 611.59 569.46 42.13
3 90.20 74.00 16.20 611.88 567.72 44.16
4 102.40 85.60 16.80 612.08 569.16 42.92
5 154.90 142.90 12.00 610.91 571.95 38.96
6 146.50 134.20 12.30 611.72 570.92 40.80
7 152.20 140.00 12.20 611.90 570.67 41.23
8 137.30 130.40 6.90 612.25 570.75 41.50
9 134.80 127.90 6.90 612.25 570.05 42.20
10 108.90 102.00 6.90 611.93 569.35 42.58
11 93.40 87.00 6.40 611.29 568.40 42.89
12 91.40 85.10 6.30 611.01 568.85 42.16
13 98.30 85.40 12.90 611.04 569.05 41.99
14 97.10 83.80 13.30 611.46 568.72 42.74
15 98.60 84.90 13.70 611.88 569.05 42.83
16 102.80 88.90 13.90 611.95 569.53 42.42
17 114.40 100.30 14.10 612.19 569.96 42.23
18 128.30 114.10 14.20 611.80 571.02 40.78
19 145.90 132.40 13.50 611.17 571.43 39.74
20 128.30 114.90 13.40 611.28 570.43 40.85
21 128.40 112.10 16.30 611.50 570.40 41.10
22 127.70 111.20 16.50 611.81 570.51 41.30
23 132.40 115.50 16.90 612.11 570.57 41.54
24 128.70 111.70 17.00 612.37 569.62 42.75
AVG 118.83 105.86 12.97 611.71 569.85 41.85
MAX 154.90 142.90 17.00 612.37 571.95 44.16
MIN 90.20 74.00 6.30 610.91 567.72 38.96
BUILDING STRONG®