US Army Corps of Engineers

Rock Island Dam

Wednesday June 3, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 194.80 147.60 47.20 612.92 575.29 37.63
2 201.50 147.80 53.70 612.59 575.49 37.10
3 200.50 147.40 53.10 612.38 575.51 36.87
4 198.90 147.00 51.90 612.36 575.40 36.96
5 194.50 144.60 49.90 612.33 575.16 37.17
6 192.80 142.90 49.90 612.36 575.22 37.14
7 192.00 142.10 49.90 612.42 575.05 37.37
8 193.80 143.80 50.00 612.40 575.16 37.24
9 197.70 147.50 50.20 612.70 575.27 37.43
10 203.30 147.40 55.90 612.56 575.41 37.15
11 204.90 147.40 57.50 612.31 575.35 36.96
12 202.50 145.20 57.30 612.33 575.32 37.01
13 201.80 144.50 57.30 612.36 575.22 37.14
14 201.50 144.20 57.30 612.28 575.44 36.84
15 194.50 137.20 57.30 612.32 574.87 37.45
16 188.20 130.80 57.40 612.31 574.52 37.79
17 187.20 129.80 57.40 612.32 574.57 37.75
18 191.10 133.60 57.50 612.34 574.87 37.47
19 194.20 136.90 57.30 612.02 575.24 36.78
20 201.80 146.80 55.00 611.82 575.18 36.64
21 181.90 136.00 45.90 612.39 574.87 37.52
22 191.10 145.10 46.00 612.22 574.95 37.27
23 191.30 145.30 46.00 612.33 575.05 37.28
24 192.00 146.00 46.00 612.34 574.86 37.48
AVG 195.58 142.79 52.79 612.36 575.14 37.23
MAX 204.90 147.80 57.50 612.92 575.51 37.79
MIN 181.90 129.80 45.90 611.82 574.52 36.64
BUILDING STRONG®