US Army Corps of Engineers

Grand Coulee Dam

May 2024

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 35192 1466 205 66.80 60.30 60.30 0.00 1278.90 1278.88 956.93 321.95 8.80 5939 1568.15
2 35675 1486 198 77.30 60.90 60.90 0.00 1279.10 1278.91 957.07 321.84 8.80 5949 1568.28
3 39536 1647 192 74.60 67.70 67.70 0.00 1279.10 1279.05 957.69 321.36 8.80 5949 1568.43
4 35488 1479 198 71.80 59.90 59.90 0.00 1279.20 1279.09 957.30 321.79 8.80 5940 1568.64
5 29317 1222 188 77.90 50.00 50.00 0.00 1279.70 1279.37 956.81 322.56 8.80 5942 1568.90
6 33651 1402 197 70.10 57.70 57.70 0.00 1279.80 1279.62 957.05 322.57 6.68 4543 1569.02
7 34887 1454 180 78.50 59.90 59.90 0.00 1280.20 1279.93 957.10 322.83 4.05 2803 1568.90
8 44598 1858 191 82.80 75.70 75.70 0.00 1280.30 1280.14 957.86 322.28 4.00 2754 1568.72
9 42088 1754 170 69.30 72.50 72.50 0.00 1280.00 1280.04 958.61 321.43 5.69 4005 1568.68
10 43332 1806 169 74.50 73.30 73.30 0.00 1280.00 1280.05 959.22 320.83 4.62 3181 1568.55
11 44201 1842 172 81.40 75.10 75.10 0.00 1279.90 1279.90 958.68 321.22 8.60 5929 1568.73
12 43276 1803 177 86.40 73.20 73.20 0.00 1280.00 1279.89 958.19 321.70 8.57 5881 1568.90
13 41191 1716 184 78.90 69.60 69.60 0.00 1280.50 1280.20 957.84 322.36 5.14 3413 1568.79
14 53608 2234 185 110.90 91.20 91.20 0.00 1280.60 1280.56 959.84 320.72 3.55 2373 1568.51
15 59734 2489 189 107.00 101.90 101.80 0.80 1280.60 1280.62 960.68 319.94 2.12 1472 1568.11
16 55412 2309 187 102.40 93.80 93.80 0.00 1280.80 1280.69 959.88 320.81 2.80 1907 1567.81
17 56655 2361 184 116.40 98.60 98.60 0.00 1281.10 1281.02 960.68 320.34 5.14 3400 1567.49
18 61448 2560 187 119.90 104.70 104.70 0.00 1281.20 1281.09 960.81 320.28 12.50 8275 1567.80
19 61201 2550 193 116.70 103.50 103.50 0.00 1281.20 1281.20 960.24 320.96 12.48 8273 1568.19
20 68377 2849 201 110.40 116.80 116.80 0.00 1280.80 1280.96 962.48 318.48 7.96 5261 1568.20
21 74955 3123 192 111.10 127.70 127.70 0.00 1280.30 1280.57 963.02 317.55 5.42 3542 1568.01
22 63506 2646 179 105.30 108.00 108.00 0.00 1280.00 1280.16 961.85 318.31 5.78 3853 1567.88
23 60417 2517 181 101.60 103.60 103.60 0.00 1279.80 1279.90 960.75 319.15 6.42 4378 1567.79
24 55583 2316 181 103.70 95.50 95.40 0.10 1279.80 1279.76 960.90 318.86 8.97 6033 1567.83
25 42608 1775 175 102.30 75.30 75.20 0.10 1280.20 1279.95 958.55 321.40 12.40 8265 1568.13
26 52538 2189 178 102.10 89.70 89.60 0.10 1280.20 1280.21 959.70 320.51 12.40 8258 1568.44
27 73020 3042 186 108.70 124.70 124.60 0.10 1279.50 1279.86 962.98 316.88 8.74 5821 1568.50
28 56730 2364 178 103.10 96.60 96.50 0.10 1279.60 1279.58 960.35 319.23 3.73 2492 1568.22
29 48827 2034 188 110.30 83.80 83.70 0.10 1280.20 1279.83 959.32 320.51 4.03 2689 1567.83
30 60880 2537 181 109.20 103.20 103.20 0.00 1280.30 1280.23 960.37 319.86 4.08 2757 1567.50
31 69321 2888 173 105.50 117.70 117.60 0.10 1279.70 1279.98 961.90 318.08 7.77 5188 1567.51
TOT1577252  5739           
AVG 50879 2120 185 94.74 86.84 86.82 0.05 1280.08 1280.04 959.50 320.54 7.02 4725 1568.27
MAX 74955   119.90 127.70 127.70 0.80 1281.20 1281.20 963.02 322.83 12.50 8275 1569.02
MIN 29317   66.80 50.00 50.00 0.00 1278.90 1278.88 956.81 316.88 2.12 1472 1567.49