US Army Corps of Engineers

Rock Island Dam & Reservoir

December 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 6962 290 0 96.57 101.26 101.26 0.00 612.36 611.76 571.74 40.02
2 7711 321 0 101.48 108.94 108.94 0.00 611.77 612.26 571.02 41.24
3 5436 226 0 95.92 99.46 78.34 21.12 611.60 611.80 570.46 41.34
4 4812 200 0 84.17 83.24 64.79 18.45 612.33 612.10 568.11 43.99
5 4755 198 0 89.90 89.65 62.40 27.25 612.43 612.32 567.72 44.60
6 5476 228 0 99.76 101.32 74.92 26.40 612.90 612.53 569.55 42.98
7 7220 301 0 90.54 96.23 95.63 0.61 612.30 612.42 569.13 43.29
8 6666 278 0 81.34 87.04 87.04 0.00 611.51 611.93 567.97 43.96
9 7806 325 0 101.36 104.23 104.23 0.00 612.80 612.22 569.17 43.05
10 7084 295 0 90.57 93.96 92.16 1.80 612.52 612.65 568.67 43.98
11 7508 313 0 101.10 106.20 100.96 5.23 612.58 612.58 569.66 42.92
12 7272 303 0 93.62 100.16 100.16 0.00 612.77 612.34 570.51 41.83
13 6809 284 0 88.06 93.04 93.04 0.00 612.85 612.48 570.31 42.17
14 6644 277 0 84.70 92.00 92.00 0.00 612.04 611.96 569.76 42.20
15 6195 258 0 81.62 87.05 87.05 0.00 611.93 611.54 570.35 41.19
16 6028 251 0 78.27 80.88 80.88 0.00 611.81 611.66 568.79 42.87
17 6874 286 0 89.11 91.13 91.13 0.00 611.69 611.51 567.56 43.95
18 5237 218 0 69.87 70.90 67.76 3.15 612.78 611.89 566.47 45.42
19 5311 221 0 72.29 73.76 65.78 7.98 612.67 612.76 565.54 47.22
20 5405 225 0 67.03 70.22 70.18 0.04 612.22 611.60 566.88 44.72
21 5135 214 0 63.07 65.41 65.41 0.00 612.08 612.19 567.34 44.85
22 5776 241 0 70.72 73.17 73.17 0.00 612.87 612.67 567.60 45.07
23 5948 248 0 74.93 79.25 79.25 0.00 611.86 612.08 568.60 43.48
24 7121 297 0 98.83 99.07 99.07 0.00 612.78 611.77 569.56 42.21
25 5413 226 0 67.14 73.18 73.18 0.00 611.97 612.06 569.40 42.66
26 6699 279 0 87.74 90.75 90.75 0.00 612.10 611.72 569.29 42.43
27 6707 279 0 86.29 89.67 89.45 0.23 612.51 612.15 568.82 43.33
28 6751 281 0 87.54 94.50 94.50 0.00 611.98 611.66 570.03 41.63
29 5982 249 0 75.41 80.37 80.37 0.00 612.26 611.88 569.29 42.59
30 6619 276 0 86.88 89.91 89.91 0.00 612.70 611.46 568.59 42.87
31 6284 262 0 77.70 82.38 82.38 0.00 612.62 612.08 568.34 43.74
TOT195646  0        
AVG 6311 263 0 84.95 88.66 85.04 3.62 612.31 612.07 568.91 43.15
MAX 7806   101.48 108.94 108.94 27.25 612.90 612.76 571.74 47.22
MIN 4755   63.07 65.41 62.40 0.00 611.51 611.46 565.54 40.02