US Army Corps of Engineers

Rock Island Dam

Wednesday January 21, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 150.70 150.70 0.00 611.80 573.60 38.20
2 138.60 138.60 0.00 611.54 573.70 37.84
3 133.00 133.00 0.00 611.46 573.49 37.97
4 139.60 139.60 0.00 611.25 574.16 37.09
5 161.80 161.80 0.00 611.04 574.76 36.28
6 168.60 168.60 0.00 610.89 574.67 36.22
7 168.50 168.50 0.00 610.93 574.56 36.37
8 168.40 168.40 0.00 611.32 574.67 36.65
9 169.10 169.10 0.00 611.51 574.79 36.72
10 166.10 166.10 0.00 611.76 574.46 37.30
11 158.40 158.40 0.00 612.06 574.48 37.58
12 154.80 154.80 0.00 612.19 574.67 37.52
13 163.90 163.90 0.00 612.28 574.64 37.64
14 165.50 165.50 0.00 612.18 574.72 37.46
15 167.90 167.90 0.00 611.90 574.98 36.92
16 167.80 167.80 0.00 611.73 574.92 36.81
17 166.20 166.20 0.00 611.92 574.91 37.01
18 167.60 167.60 0.00 611.95 574.81 37.14
19 165.80 165.80 0.00 612.19 574.72 37.47
20 168.50 168.50 0.00 612.35 575.03 37.32
21 169.70 169.70 0.00 612.34 574.98 37.36
22 169.60 169.60 0.00 612.28 574.89 37.39
23 159.30 159.30 0.00 612.38 574.52 37.86
24 155.10 155.10 0.00 612.22 574.21 38.01
AVG 161.02 161.02 0.00 611.81 574.56 37.26
MAX 169.70 169.70 0.00 612.38 575.03 38.20
MIN 133.00 133.00 0.00 610.89 573.49 36.22
BUILDING STRONG®