US Army Corps of Engineers

Chief Joseph Dam & Rufus Woods Lake

February 2026

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 110.10 108.60 108.60 0.00 952.80 952.30 780.70 171.60
2 125.30 126.80 126.80 0.00 952.40 952.10 782.00 170.10
3 121.20 123.50 123.50 0.00 951.80 952.40 782.60 169.80
4 104.60 104.20 104.20 0.00 952.50 952.30 779.90 172.40
5 113.80 111.90 111.90 0.00 953.00 952.60 780.60 172.00
6
7
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9
10
11
12
13
14
15
16
17
18
19
20
21
22
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24
25
26
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28
TOT           
AVG    115.00 115.00 115.00 0.00 952.50 952.34 781.16 171.18
MAX    125.30 126.80 126.80 0.00 953.00 952.60 782.60 172.40
MIN    104.60 104.20 104.20 0.00 951.80 952.10 779.90 169.80