US Army Corps of Engineers

Grand Coulee Dam

March 2023

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 38811 1617 166 56.90 71.20 71.20 0.00 1258.00 1258.03 958.47 299.56 0.07 54 1569.46
2 35679 1487 163 57.90 65.30 65.30 0.00 1257.80 1257.82 958.18 299.64 0.06 46 1569.48
3 34367 1432 158 60.70 63.10 63.10 0.00 1257.70 1257.76 957.62 300.14 0.00 0 1569.43
4 37450 1560 157 55.20 67.90 67.90 0.00 1257.40 1257.53 958.24 299.29 0.12 96 1569.45
5 38576 1607 150 48.70 70.10 70.10 0.00 1256.70 1256.97 958.60 298.37 1.47 1152 1569.57
6 37234 1551 169 51.90 68.00 68.00 0.00 1256.20 1256.27 958.48 297.79 0.35 287 1569.60
7 39011 1625 146 54.60 71.70 71.70 0.00 1255.70 1255.77 958.85 296.92 0.00 0 1569.50
8 43185 1799 146 42.40 79.50 79.50 0.00 1254.60 1255.03 959.24 295.79 0.01 8 1569.42
9 42835 1785 144 58.70 79.20 79.20 0.00 1253.90 1254.09 959.55 294.54 0.00 0 1569.30
10 33240 1385 139 47.80 62.00 62.00 0.00 1253.50 1253.62 958.17 295.45 0.00 0 1569.31
11 35933 1497 136 45.60 66.30 66.30 0.00 1252.90 1253.21 958.67 294.54 0.36 282 1569.22
12 39040 1627 128 48.30 75.60 75.60 0.00 1252.00 1252.16 959.24 292.92 2.59 2018 1569.30
13 51.30 63.00 63.00 0.00 1251.50 1251.70 957.46 294.24 1569.30
14 53.00 67.30 67.30 0.00 1251.10 1251.23 958.41 292.82 1569.16
15 48.30 59.70 59.70 0.00 1250.90 1250.88 958.17 292.71 1569.12
16 52.80 66.40 66.40 0.00 1250.40 1250.39 958.84 291.55 1569.07
17 46.30 68.40 68.40 0.00 1249.70 1249.84 958.61 291.23 1569.08
18 46.70 61.20 61.20 0.00 1249.20 1249.35 958.07 291.28 1569.24
19 49.30 68.10 68.10 0.00 1248.50 1248.78 958.65 290.13 1569.45
20 1248.10
21
22
23
24
25
26
27
28
29
30
31
TOT455361  1802           
AVG 37947 1581 150 51.39 68.11 68.11 0.00 1253.29 1253.71 958.50 295.21 0.42 329 1569.34
MAX 43185   60.70 79.50 79.50 0.00 1258.00 1258.03 959.55 300.14 2.59 2018 1569.60
MIN 33240   42.40 59.70 59.70 0.00 1248.10 1248.78 957.46 290.13 0.00 0 1569.07