Albeni Falls Dam and Pend Oreille Lake

Project Description

• Sub-basin: Upper Columbia
• Stream: Pend Oreille River
• Location: Newport, Washington
• Owner: Corps of Engineers, Seattle District
• Type of Project: Storage
• Authorized Purpose: Flood Control, Power, Navigation
• Other Uses: Recreation

Hydrologic Data

• Drainage area = 24,400 sq mi
• Maximum historical peak discharge = 200,000 cfs (1894)
• Lake Elevation at Hope (NGVD29)
  Maximum pool = 2,067.5 ft (limit of flowage right-of-way)
  Normal full pool = 2,062.5 ft
  Minimum pool = 2,049.7 ft
  
• Usable Storage (2,051.0 to 2,062.5) = 1,155,200 AF

Powerhouse

• Number of generating units = 3
• Nameplate rating = 42.0 MW
• Continuous overload = 48.9 MW
• Short time overload = 54.3 MW
• Hydraulic capacity = 33,000 cfs

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