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Provisional Data Warning
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Current Water Year Summaries: [Forebay Elev] [Storage] [Precip] [Inflow] [Outflow]

Libby Dam and Lake Koocanusa

Full-Size: Photo 1 = 131K, Photo 2 = 136K

Project Description

Sub-basin: Upper Columbia
Stream: Kootenai River
Location: Libby, Montana
Owner: Corps of Engineers, Seattle District: Libby
Type of Project: Storage
Authorized Purpose: Flood Control, Power
Other Uses: Fishery, Recreation

Hydrologic Data

Drainage area = 8,985 sq mi
Maximum historical peak discharge = 130,000 cfs (1894)
Lake Elevation
Maximum pool = 2,459.0 ft
Full pool = 2,459.0 ft
Minimum pool = 2,287.0 ft
Usable Storage (2,287.0 to 2,459.0) = 4,979,500 AF

Powerhouse

Number of units.................................5
Nameplate capacity...........................525 MW
Overload capacity.............................604 MW
Hydraulic capacity.............................24,100 cfs

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U.S. Army Corps of Engineers, Columbia Basin Water Management Division
Email: Information Provider | Webmaster
Page Updated: Wednesday, 19-Nov-2003

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