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 6931 289 96 236.30 234.30 73.00 148.90 73.70 72.90 18.80 54.10 18.80 6931 73.00
13 7727 322 96 243.90 244.90 82.50 150.00 73.60 73.20 19.40 53.80 19.40 7727 82.50
14 4821 201 96 214.70 211.70 49.70 149.60 73.80 73.00 17.70 55.30 17.60 4821 49.70
15 3392 141 96 188.10 190.10 33.60 144.20 73.60 73.30 16.20 57.10 16.20 3392 33.60
16 6347 264 96 173.00 169.00 60.60 96.10 74.10 73.70 14.30 59.40 14.40 6150 58.70
17 7421 309 96 178.10 179.10 71.70 95.00 73.90 73.70 15.10 58.60 15.10 7421 71.70
18 8100 338 96 189.50 186.50 78.90 95.10 74.40 74.00 15.50 58.50 15.50 8099 78.90
19 9202 383 96 200.70 198.70 91.20 95.10 74.40 74.00 16.30 57.70 16.40 9202 91.20
20 7025 293 96 176.80 174.80 67.30 95.10 74.60 74.10 15.00 59.10 15.10 7025 67.10
21 7027 293 96 178.20 174.20 66.70 95.10 75.00 74.10 14.90 59.20 15.00 7027 66.70
22 7830 326 96 171.90 182.90 75.30 95.20 73.90 74.00 15.50 58.50 15.60 7830 75.30
23 154.40 159.40 52.30 94.70 73.40 73.40 14.10 59.30 14.20 52.30
24 167.90 174.90 68.60 93.80 72.70 72.60 14.70 57.90 14.80 68.60
25 191.90 185.90 79.80 93.70 73.40 72.60 15.60 57.00 15.70 79.80
26 162.40 165.40 58.70 94.30 73.10 73.10 14.50 58.60 14.60 58.70
27 153.50 157.50 51.30 93.80 72.50 72.50 13.70 58.80 13.70 51.30
28 166.00 157.00 50.80 93.80 73.70 72.70 13.70 59.00 13.70 50.80
29 155.90 155.90 49.20 94.30 73.60 73.10 13.40 59.70 13.50 49.20
30
TOT147310  2112           
AVG 6696 279 96 201.30 201.23 66.00 122.83 73.75 73.38 16.73 56.65 16.74 6611 65.32
MAX 10338   272.90 274.90 114.30 150.80 75.00 74.20 21.40 59.70 21.20 9443 104.70
MIN 3328   153.50 155.90 32.70 93.70 72.50 72.50 13.40 51.50 13.50 3328 32.70