US Army Corps of Engineers

Libby Dam & Lake Koocanusa

March 2026

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feetMidnight Storage kaf
1 1971 82 23 3.42 4.00 4.00 0.00 2383.60 2383.64 2117.94 265.70 2098.50
2 1967 82 23 2.99 4.00 4.00 0.00 2383.53 2383.58 2117.94 265.64 2096.50
3 1970 82 22 4.00 4.00 4.00 0.00 2383.53 2383.53 2117.94 265.59 2096.50
4 1966 82 20 3.71 4.00 4.00 0.00 2383.51 2383.50 2117.93 265.57 2095.90
5 1964 82 21 3.27 4.00 4.00 0.00 2383.46 2383.46 2117.93 265.53 2094.50
6 1966 82 23 3.42 4.00 4.00 0.00 2383.42 2383.43 2117.94 265.49 2093.30
7 2669 111 20 3.37 5.54 5.54 0.00 2383.27 2383.37 2118.62 264.75 2089.00
8 2383.25
9 2383.25
10 2383.23
11 2383.28
12 2383.29
13 2383.21
14 2383.11
15 2382.96
16 2382.80
17 2382.65
18 2382.60
19 2382.62
20 2383.08
21 2383.79
22 2384.60
23 2384.93
24 2384.85
25 2384.72
26 2384.45
27 2384.06
28 2383.56
29 2382.98
30 2382.42
31 2381.78
TOT 14474  153         
AVG 2068 86 22 3.45 4.22 4.22 0.00 2383.41 2383.50 2118.03 265.47 2094.89
MAX 2669   4.00 5.54 5.54 0.00 2384.93 2383.64 2118.62 265.70 2098.50
MIN 1964   2.99 4.00 4.00 0.00 2381.78 2383.37 2117.93 264.75 2089.00