US Army Corps of Engineers

Green Peter Dam and Lake


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Green Peter Dam

Project Description

  • Stream: Middle Santiam River
  • Location: Foster, Oregon
  • Type of Project: Storage
  • Authorized Purpose: Flood Control, Power, Navigation, Irrigation
  • Other Uses: Fishery, Water Quality, Recreation

Hydrologic Data

  • Drainage area = 277 sq mi
  • Maximum observed flood peak = 66,000 cfs (1964)
  • Lake Elevation (NGVD29)
    Maximum pool = 1,015.0 ft
    Full pool = 1,015.0 ft
    Minimum flood control pool = 922.0 ft
  • Usable Storage (887.0 to 1,010.0) = 312,500 AF

Powerhouse

  • Number of units = 2
  • Nameplate capacity = 80 MW
  • Overload capacity = 92 MW
  • Hydraulic capacity = 4,600 cfs

Dam and Reservoir Info

7 Day Project Status

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U.S. Army Corps of Engineers, Columbia Basin Water Management Division
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