US Army Corps of Engineers

Fern Ridge Dam and Lake


Provisional Data Warning
Hydrologic Data: [Graph] [Query]
Water Year Summaries: [Forebay] [Storage] [Inflow] [Outflow]
Verified Data: [Reservoir] [Outflow]
Dam and Reservoir: [Information]

Fern Ridge Dam 2 Fern Ridge Dam 1

Project Description

  • Stream: Long Tom River
  • Location: Elmira, Oregon
  • Type of Project: Storage
  • Authorized Purpose: Flood Control, Irrigation, Navigation
  • Other Uses: Fishery, Water Quality, Recreation

Hydrologic Data

  • Drainage area = 252 sq mi
  • Peak inflow = 23,600 cfs (1948)
  • Lake Elevation (NGVD29)
    Maximum pool = 375.1 ft
    Full pool = 375.1 ft
    Minimum pool = 340.0 ft
  • Usable Storage (340.0 to 373.5) = 101,100 AF

Dam and Reservoir Info

7 Day Project Status

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