US Army Corps of Engineers

Rock Island Dam & Reservoir

July 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 6766 282 0 107.91 112.23 92.60 19.63 612.71 612.75 570.26 42.49
2 5537 231 0 96.56 96.97 75.07 21.90 612.74 612.75 569.70 43.05
3 5482 228 0 93.45 94.90 75.00 19.91 612.73 612.75 570.02 42.73
4 4995 208 0 82.71 83.83 68.96 14.88 612.72 612.75 570.44 42.31
5 5009 209 0 81.22 83.32 67.55 15.76 612.77 612.78 570.44 42.34
6 4745 198 0 78.83 77.88 63.51 14.36 612.76 612.79 569.44 43.35
7 4960 207 0 80.22 79.95 65.33 14.63 612.80 612.78 569.39 43.39
8 5187 216 0 85.11 86.84 68.55 18.25 612.83 612.78 568.87 43.91
9 5440 227 0 86.94 89.90 72.09 17.81 612.51 612.77 569.12 43.65
10 5268 220 0 88.65 88.44 70.61 17.83 612.64 612.71 569.81 42.90
11 5388 224 0 93.05 92.39 72.98 19.40 612.86 612.79 569.97 42.82
12 6458 269 0 108.83 110.05 92.55 17.50 612.84 612.80 571.35 41.45
13 5172 216 0 84.26 85.40 69.36 16.04 612.86 612.80 570.05 42.75
14 4853 202 0 75.51 76.97 63.22 13.75 612.86 612.80 568.36 44.44
15 4943 206 0 95.25 85.48 64.10 21.38 612.82 612.78 567.79 44.99
16 6175 257 0 99.25 102.10 82.92 19.19 612.78 612.79 569.33 43.46
17 6634 276 0 107.98 110.80 91.03 19.76 612.63 612.75 570.27 42.48
18 6177 257 0 103.60 103.93 85.19 18.74 612.73 612.73 570.25 42.48
19 6170 257 0 101.85 104.20 85.35 18.86 612.74 612.73 570.56 42.17
20 5367 224 0 89.33 89.58 71.68 17.90 612.74 612.75 569.45 43.30
21 4808 200 0 79.53 78.94 63.64 15.30 612.61 612.73 569.02 43.71
22 5930 247 0 102.11 102.38 80.63 21.74 612.73 612.70 569.99 42.71
23 6226 259 0 103.72 106.98 86.50 20.48 612.70 612.71 571.50 41.21
24 5187 216 0 93.32 95.28 75.02 20.26 612.65 612.70 571.08 41.62
25 5555 231 0 94.24 96.27 76.17 20.10 612.67 612.67 570.07 42.60
26 5983 249 0 100.21 100.75 81.17 19.58 612.82 612.71 569.20 43.51
27 4689 195 0 80.37 79.30 60.25 19.05 612.81 612.79 569.16 43.63
28 5107 213 0 87.74 87.63 68.32 19.31 612.67 612.75 569.39 43.36
29 5763 240 0 105.08 104.08 79.70 24.37 612.71 612.70 570.71 41.99
30 6322 263 0 116.99 118.28 92.99 25.29 612.76 612.72 572.62 40.10
31 6908 288 0 122.99 126.34 101.84 24.50 612.74 612.75 572.63 40.12
TOT173204  0        
AVG 5587 233 0 94.41 95.21 76.25 18.95 612.74 612.75 570.01 42.74
MAX 6908   122.99 126.34 101.84 25.29 612.86 612.80 572.63 44.99
MIN 4689   75.51 76.97 60.25 13.75 612.51 612.67 567.79 40.10