US Army Corps of Engineers

Rock Island Dam & Reservoir

July 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 107.80 107.17 85.63 21.54 612.37 612.08 568.92 43.16
2 112.40 114.57 93.28 21.29 611.81 612.05 570.04 42.01
3 114.55 115.57 94.44 21.13 612.22 611.96 571.12 40.84
4 66.80 70.74 55.23 15.51 610.96 611.59 569.75 41.84
5 611.58
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
TOT           
AVG    100.39 102.01 82.15 19.87 611.79 611.92 569.96 41.96
MAX    114.55 115.57 94.44 21.54 612.37 612.08 571.12 43.16
MIN    66.80 70.74 55.23 15.51 610.96 611.59 568.92 40.84