US Army Corps of Engineers

Rock Island Dam & Reservoir

March 2026

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 8643 360 0 122.33 127.34 127.34 0.00 612.26 611.99 572.31 39.68
2 8701 363 0 122.57 127.42 127.42 0.00 612.06 611.85 571.71 40.14
3 8606 359 0 119.68 123.45 123.44 0.00 612.20 611.90 571.24 40.66
4 113.20 116.75 116.75 0.01 611.62 611.61 570.85 40.76
5 129.93 132.25 131.47 0.78 611.94 611.80 572.38 39.42
6 135.45 142.44 142.44 0.00 610.95 611.56 573.82 37.74
7 121.92 124.68 119.53 5.15 612.13 611.82 572.76 39.06
8 108.27 110.64 110.28 0.36 612.61 612.05 570.95 41.10
9 116.65 123.21 123.05 0.15 610.84 611.46 570.80 40.66
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TOT 25950  0        
AVG 8650 360 0 121.11 125.35 124.64 0.72 611.85 611.78 571.87 39.91
MAX 8701   135.45 142.44 142.44 5.15 612.61 612.05 573.82 41.10
MIN 8606   108.27 110.64 110.28 0.00 610.84 611.46 570.80 37.74