US Army Corps of Engineers

Chief Joseph Dam & Rufus Woods Lake

October 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 17142 714 20 50.20 53.30 53.30 0.00 953.20 953.50 778.70 174.80
2 20346 848 21 59.40 62.90 62.90 0.00 952.30 953.10 779.40 173.70
3 15916 663 21 52.30 49.20 49.20 0.00 953.10 952.90 778.80 174.10
4 13900 579 21 43.20 43.20 43.20 0.00 953.10 953.20 778.40 174.80
5 15384 641 21 41.80 47.70 47.70 0.00 953.20 953.20 779.00 174.20
6 23363 973 21 71.30 73.20 73.20 0.00 952.70 952.70 780.20 172.50
7 21415 892 21 70.00 67.30 67.30 0.00 953.40 952.70 780.70 172.00
8 23170 965 21 73.80 72.40 72.40 0.00 953.70 953.30 780.70 172.60
9 24028 1001 21 73.70 74.90 74.90 0.00 953.30 953.60 781.00 172.60
10 19844 827 21 56.60 61.60 61.60 0.00 952.10 953.10 779.50 173.60
11 15656 652 21 47.90 48.70 48.70 0.00 952.30 952.80 778.80 174.00
12 19194 800 22 59.60 59.60 59.60 0.00 952.30 952.30 779.90 172.40
13 22201 925 22 74.40 69.40 69.40 0.00 953.60 952.50 780.40 172.10
14 25899 1079 23 77.20 81.10 81.10 0.00 952.60 953.00 781.10 171.90
15 22443 935 24 73.70 70.20 70.20 0.00 953.50 953.20 780.70 172.50
16 22576 941 24 69.40 71.00 71.00 0.00 953.10 952.80 781.00 171.80
17 15953 665 24 43.60 49.40 49.40 0.00 951.60 952.70 779.70 173.00
18 19775 824 24 65.70 61.10 61.10 0.00 952.80 952.30 779.00 173.30
19 15717 655 23 47.90 48.30 48.30 0.00 952.70 953.00 778.30 174.70
20 20595 858 24 62.70 63.90 63.90 0.00 952.40 952.90 779.70 173.20
21 22904 954 24 73.40 71.90 71.90 0.00 952.80 952.20 780.40 171.80
22 68.50 70.40 70.40 0.00 952.30 952.80 780.30 172.50
23 68.20 62.80 62.80 0.00 953.70 953.20 779.20 174.00
24 78.00 80.00 80.00 0.00 953.20 953.50 780.10 173.40
25 57.80 59.40 59.40 0.00 952.80 953.00 779.00 174.00
26 51.70 52.90 52.90 0.00 952.50 952.90 778.60 174.30
27 64.30 64.70 64.70 0.00 952.40 952.80 779.80 173.00
28 67.00 64.70 64.70 0.00 953.00 953.00 779.60 173.40
29
30
31
TOT417421  463        
AVG 19877 828 22 62.26 62.69 62.69 0.00 952.85 952.94 779.71 173.22
MAX 25899   78.00 81.10 81.10 0.00 953.70 953.60 781.10 174.80
MIN 13900   41.80 43.20 43.20 0.00 951.60 952.20 778.30 171.80
BUILDING STRONG®