US Army Corps of Engineers

Bonneville Dam & Lake on Columbia River

February 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 16183 674 96 151.80 157.80 152.20 2.10 74.30 74.30 15.50 58.80 15.50 10643 101.30
2 15781 658 96 157.30 151.30 147.20 0.60 75.00 74.10 14.90 59.20 15.00 10281 97.00
3 16056 669 88 156.80 151.80 147.80 0.60 75.40 74.70 14.60 60.10 14.70 10417 97.10
4 15667 653 96 144.20 146.20 142.10 0.50 75.20 74.80 13.90 60.90 13.90 10134 93.20
5 15561 648 96 143.80 144.80 140.80 0.60 75.10 74.70 13.70 61.00 13.80 9643 88.20
6 13319 555 96 118.80 121.80 117.80 0.60 74.80 74.80 12.30 62.50 12.50 8314 74.90
7 13890 579 96 130.60 127.60 123.50 0.60 75.10 74.50 12.60 61.90 12.70 8629 77.90
8 14144 589 96 133.00 130.00 125.90 0.60 75.50 75.00 12.80 62.20 13.00 8977 81.30
9 13804 575 96 125.60 126.60 122.60 0.60 75.40 75.20 12.60 62.60 12.70 9615 86.80
10 13195 550 96 116.90 120.90 116.90 0.60 75.10 74.90 12.00 62.90 12.20 9509 85.50
11 13379 557 96 118.70 122.70 118.60 0.60 74.60 74.80 12.10 62.70 12.30 9503 85.60
12 12056 502 96 119.70 110.70 106.60 0.70 75.50 74.60 11.40 63.20 11.70 9874 88.00
13 13040 543 96 123.10 118.10 114.00 0.60 76.00 75.50 11.70 63.80 11.90 9267 82.10
14 14076 586 96 123.80 126.80 122.80 0.60 75.70 75.70 11.90 63.80 12.10 9415 83.50
15 13397 558 96 119.80 121.80 117.60 0.60 75.50 75.20 11.70 63.50 11.80 9863 87.80
16 15870 661 96 142.70 145.70 141.30 0.60 75.20 75.30 12.80 62.50 12.90 11232 101.30
17 14242 593 96 132.50 129.50 125.00 0.60 75.50 75.10 11.60 63.50 11.70 10081 89.80
18 13564 565 96 125.90 122.90 118.40 0.60 75.80 75.20 11.30 63.90 11.50 9773 86.70
19 118.40 123.40 118.80 0.60 75.30 75.50 11.40 64.10 11.60 86.90
20 117.40 120.40 115.80 0.60 75.00 74.50 11.40 63.10 11.60 87.50
21 115.80 117.80 113.30 0.60 74.80 74.50 11.50 63.00 11.70 81.90
22 124.20 117.20 112.60 0.60 75.50 74.80 11.50 63.30 11.70 85.70
23 112.50 118.50 114.00 0.60 74.90 74.90 11.50 63.40 11.70 88.10
24 112.40 116.40 111.90 0.60 74.50 74.50 11.40 63.10 11.60 86.10
25 118.20 116.20 111.70 0.60 74.70 74.10 11.50 62.60 11.70 86.10
26
27
28
29
TOT257224  1720           
AVG 14290 595 96 128.16 128.28 123.97 0.66 75.18 74.85 12.38 62.46 12.54 9732 87.61
MAX 16183   157.30 157.80 152.20 2.10 76.00 75.70 15.50 64.10 15.50 11232 101.30
MIN 12056   112.40 110.70 106.60 0.50 74.30 74.10 11.30 58.80 11.50 8314 74.90