US Army Corps of Engineers

Bonneville Dam & Lake on Columbia River

June 2024

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feetProject Average Tailwater2nd Powerhouse Total MWh2nd Powerhouse Flow kcfs
1 5658 236 96 221.10 220.10 58.00 149.70 73.30 73.30 18.00 55.30 18.00 5658 58.00
2 3328 139 96 205.00 195.00 32.70 149.90 74.50 73.90 16.50 57.40 16.50 3328 32.70
3 3843 160 96 196.30 200.30 38.30 149.60 74.00 73.90 17.10 56.80 17.10 3843 38.30
4 6058 252 96 224.10 225.10 63.30 149.40 74.00 73.50 18.40 55.10 18.30 6058 63.30
5 6544 273 96 240.20 230.20 67.50 150.30 74.90 74.20 18.90 55.30 18.90 6491 67.00
6 9981 416 96 254.60 269.60 107.60 149.60 73.40 73.80 21.10 52.70 20.90 9322 100.70
7 10338 431 96 272.90 274.90 114.30 148.20 73.10 72.90 21.40 51.50 21.20 9443 104.70
8 7335 306 96 237.00 240.00 79.00 148.60 72.90 72.90 19.60 53.30 19.60 7335 79.00
9 6467 269 96 234.20 231.20 68.60 150.20 73.20 72.80 19.00 53.80 19.00 6467 68.60
10 4957 207 96 229.50 214.50 51.30 150.80 74.70 73.30 17.90 55.40 17.90 4888 50.60
11 6978 291 96 219.70 232.70 72.20 148.10 73.40 73.50 18.80 54.70 18.70 6978 72.20
12 236.30 234.30 73.00 148.90 73.70 72.90 18.80 54.10 18.80 73.00
13 243.90 244.90 82.50 150.00 73.60 73.20 19.40 53.80 19.40 82.50
14 214.70 211.70 49.70 149.60 73.80 73.00 17.70 55.30 17.60 49.70
15 188.10 190.10 33.60 144.20 73.60 73.30 16.20 57.10 16.20 33.60
16 173.00 169.00 60.60 96.10 74.10 73.70 14.30 59.40 14.40 58.70
17 178.10 179.10 71.70 95.00 73.90 73.70 15.10 58.60 15.10 71.70
18 189.50 186.50 78.90 95.10 74.40 74.00 15.50 58.50 15.50 78.90
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TOT 71487  1056           
AVG 6499 271 96 219.90 219.40 66.82 140.18 73.81 73.43 17.98 55.45 17.95 6346 65.73
MAX 10338   272.90 274.90 114.30 150.80 74.90 74.20 21.40 59.40 21.20 9443 104.70
MIN 3328   173.00 169.00 32.70 95.00 72.90 72.80 14.30 51.50 14.40 3328 32.70