US Army Corps of Engineers

Grand Coulee Dam

April 2021

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feetBanks Lake Pump kcfsBanks Lake Pump MWhBanks Lake Elev
1 34441 1435 120 58.70 59.70 59.70 0.00 1270.90 1270.76 958.19 312.57 3.42 2387 1568.72
2 34771 1449 123 53.00 60.00 60.00 0.00 1270.60 1270.64 957.82 312.82 3.18 2230 1568.55
3 55.30 55.70 55.70 0.00 1270.50 1270.49 957.70 312.79 1568.50
4 55.70 41.50 41.50 0.00 1270.60 1270.54 956.86 313.68 1568.92
5 94.30 72.20 72.20 0.00 1270.00 1270.01 958.44 311.57 1568.56
6 62.30 56.20 56.20 0.00 1270.20 1270.12 957.78 312.34 1568.19
7 65.00 60.90 60.90 0.00 1270.00 1270.07 958.13 311.94 1568.67
8 65.80 58.90 58.90 0.00 1270.10 1269.94 957.38 312.56 1568.43
9 69.00 64.20 64.20 0.00 1269.90 1269.85 958.33 311.52 1568.89
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TOT 69212  243           
AVG 34606 1442 122 64.34 58.81 58.81 0.00 1270.31 1270.27 957.85 312.42 3.30 2308 1568.60
MAX 34771   94.30 72.20 72.20 0.00 1270.90 1270.76 958.44 313.68 3.42 2387 1568.92
MIN 34441   53.00 41.50 41.50 0.00 1269.90 1269.85 956.86 311.52 3.18 2230 1568.19