Construction of the new 138-kV transmission line between Cambridge, McCall and Lake Fork will be accomplished in stages. View an overall project map (PDF, 46KB) or a more detailed map (PDF, 840KB) for the McCall area.

Cambridge to Council

• Tap the existing Boise Bench – Brownlee 230-kV transmission line located near Cambridge, Idaho.
  
  
• Construct the new 230/138-kV Horse Flat Substation in the immediate vicinity of the tap point just west of Cambridge.
  
  
• Construct a new 138-kV transmission line from Horse Flat Substation to another new substation located north of Council, Idaho (the Starkey Substation).
  
  
• The transmission line will be built using H-frame (PDF, 628KB) structures.
  
  
• Construct the new 138/69-kV Starkey Substation.
  
  
• Connect the existing Oxbow to McCall 138-kV and the Cambridge to New Meadows 69-kV transmission lines to the new Starkey Substation.
  
  
• This segment is planned to be operational by Nov. 1, 2006.
  
  

Council to McCall

• Upgrade the existing 69-kV line from Starkey Substation to McCall Substation.
  
  
• Convert Tamarack, New Meadows and McCall substations to 138-kV.
  
  
• The transmission line will be built using H-frame and single pole (PDF, 628KB) structures.
  
  
• This segment is planned to be operational by Nov. 1, 2007.
  

McCall to Lake Fork

• Upgrade the existing 69-kV line from McCall Substation to Lake Fork Substation.
  
  
• The transmission line will be built using H-frame and single pole (PDF, 628KB) structures.
  
  
• This segment is planned to be constructed by Aug. 2007.