US Army Corps of Engineers

Rock Island Dam & Reservoir

September 2019

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 4787 199 0 60.69 62.92 62.92 0.00 612.70 612.72 568.11 44.61
2 5906 246 0 78.50 81.40 81.40 0.00 612.90 612.67 570.04 42.63
3 4887 204 0 59.11 61.84 61.84 0.00 612.67 612.80 567.75 45.05
4 5472 228 0 66.03 68.51 68.51 0.00 612.80 612.75 567.36 45.39
5 4716 196 0 55.67 57.66 57.66 0.00 612.60 612.69 566.45 46.24
6 5485 229 0 67.64 69.03 69.03 0.00 612.72 612.62 566.93 45.69
7 4326 180 0 54.35 55.50 55.50 0.00 612.81 612.71 567.82 44.89
8 3310 138 0 47.08 42.32 42.32 0.00 612.61 612.69 567.38 45.31
9 4030 168 0 51.93 52.86 52.69 0.17 612.71 612.70 568.10 44.60
10 4544 189 0 56.73 58.83 58.83 0.00 612.51 612.69 568.49 44.20
11 3995 166 0 49.00 48.82 48.82 0.00 612.78 612.72 565.98 46.74
12 5140 214 0 62.05 63.41 63.41 0.00 612.80 612.65 566.07 46.58
13 4519 188 0 55.03 55.67 55.67 0.00 612.73 612.70 566.47 46.23
14 5139 214 0 64.26 65.95 65.95 0.00 612.69 612.68 568.41 44.27
15 4129 172 0 54.49 55.50 55.50 0.00 612.72 612.65 569.21 43.44
16 5151 215 0 65.86 70.88 70.88 0.00 612.57 612.69 569.58 43.11
17 2228 93 0 28.80 27.63 27.63 0.00 612.81 612.67 566.30 46.37
18 4068 170 0 49.22 50.93 50.67 0.26 612.58 612.65 566.60 46.05
19 3529 147 0 42.17 43.36 43.36 0.00 612.57 612.58 565.62 46.96
20 3751 156 0 44.54 44.85 44.85 0.00 612.70 612.60 564.90 47.70
21 3423 143 0 41.05 41.34 41.34 0.00 612.59 612.57 564.57 48.00
22 4327 180 0 52.62 53.35 53.31 0.05 612.49 612.68 565.82 46.86
23 4061 169 0 51.32 52.68 52.68 0.00 612.55 612.48 567.16 45.32
24 2683 112 0 35.06 34.58 34.35 0.23 612.63 612.57 566.48 46.09
25 5214 217 0 66.14 69.21 69.12 0.09 612.62 612.18 568.22 43.96
26 3696 154 0 48.55 49.13 49.13 0.00 612.64 612.67 568.39 44.28
27 3099 129 0 38.60 38.88 38.88 0.00 612.43 612.68 566.39 46.29
28 3824 159 0 47.48 47.69 47.69 0.00 612.70 612.77 566.44 46.33
29 3942 164 0 47.14 49.25 49.25 0.00 612.46 612.63 566.90 45.73
30 4971 207 0 69.33 70.74 67.65 3.09 612.85 612.68 568.77 43.91
TOT128352  0        
AVG 4278 178 0 53.68 54.82 54.69 0.13 612.66 612.65 567.22 45.43
MAX 5906   78.50 81.40 81.40 3.09 612.90 612.80 570.04 48.00
MIN 2228   28.80 27.63 27.63 0.00 612.43 612.18 564.57 42.63