US Army Corps of Engineers

Rock Island Dam & Reservoir

March 2023

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 6264 261 0 85.09 84.95 84.95 0.00 612.25 612.02 568.78 43.24
2 4778 199 0 63.45 63.84 63.84 0.00 611.87 611.97 568.21 43.76
3 5134 214 0 66.69 66.54 66.54 0.00 611.92 612.13 567.52 44.61
4 5863 244 0 74.68 78.38 78.38 0.00 611.38 611.88 567.33 44.55
5 4813 201 0 64.15 61.61 61.61 0.00 612.35 611.94 567.23 44.71
6 5654 236 0 73.30 75.24 75.24 0.00 612.04 612.16 568.72 43.44
7 5816 242 0 74.41 76.40 76.40 0.00 612.36 612.12 568.15 43.97
8 6473 270 0 84.09 85.30 85.30 0.00 612.14 612.16 568.16 44.00
9 6909 288 0 87.80 89.94 89.94 0.00 611.95 612.15 568.48 43.67
10 4452 186 0 58.92 60.55 60.55 0.00 612.05 612.12 567.43 44.69
11 5248 219 0 72.73 68.17 68.17 0.00 612.35 611.99 567.08 44.91
12 6126 255 0 80.51 86.43 86.40 0.03 612.05 611.94 568.33 43.61
13 0 57.76 59.80 59.80 0.00 611.83 611.92 568.01 43.91
14 81.42 84.29 82.42 1.87 611.25 612.02 569.22 42.80
15 50.72 47.36 47.36 0.00 612.32 611.70 567.60 44.10
16 72.74 71.72 71.72 0.00 612.08 612.03 568.83 43.20
17 76.40 78.24 78.24 0.00 612.10 611.76 568.02 43.74
18 69.15 69.10 69.10 0.00 611.58 611.97 568.38 43.59
19 67.71 67.42 67.42 0.00 612.38 611.99 567.60 44.39
20 612.52
21
22
23
24
25
26
27
28
29
30
31
TOT 67530  0        
AVG 5628 234 0 71.67 72.38 72.28 0.10 612.04 612.00 568.06 43.94
MAX 6909   87.80 89.94 89.94 1.87 612.52 612.16 569.22 44.91
MIN 4452   50.72 47.36 47.36 0.00 611.25 611.70 567.08 42.80