US Army Corps of Engineers

Rock Island Dam

Sunday September 20, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 44.20 44.20 0.00 611.90 567.32 44.58
2 39.10 34.10 5.00 611.76 567.39 44.37
3 25.00 25.00 0.00 611.63 566.93 44.70
4 16.20 16.20 0.00 611.60 567.13 44.47
5 16.00 16.00 0.00 611.81 567.39 44.42
6 17.30 17.20 0.00 611.87 567.23 44.64
7 27.30 27.30 0.00 612.23 567.56 44.67
8 38.50 38.50 0.00 612.11 567.50 44.61
9 33.70 33.70 0.00 611.80 567.27 44.53
10 33.50 33.50 0.00 612.05 567.56 44.49
11 33.00 33.00 0.00 611.67 567.43 44.24
12 30.10 30.10 0.00 611.75 567.15 44.60
13 30.50 30.50 0.00 611.68 567.35 44.33
14 32.00 32.00 0.00 611.74 567.43 44.31
15 37.40 37.40 0.00 612.17 567.21 44.96
16 54.80 54.80 0.00 612.20 567.85 44.35
17 52.40 52.40 0.00 612.01 567.91 44.10
18 57.30 57.30 0.00 611.66 567.61 44.05
19 56.40 56.40 0.00 612.25 567.93 44.32
20 69.70 69.70 0.00 612.06 567.89 44.17
21 69.10 69.10 0.00 612.22 567.83 44.39
22 70.70 70.70 0.00 612.14 567.94 44.20
23 60.30 60.30 0.00 612.18 567.47 44.71
24 47.50 47.50 0.00 611.97 567.15 44.82
AVG 41.33 41.12 0.21 611.94 567.48 44.46
MAX 70.70 70.70 5.00 612.25 567.94 44.96
MIN 16.00 16.00 0.00 611.60 566.93 44.05
BUILDING STRONG®