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Harper Diversion Dam

HarperDi


Statistics

General

  • Vicinity Map
  • Region (Map) ............. Pacific Northwest
  • State (Map) ................................... Oregon
  • County ......................................... Malheur
  • Project ................................................. Vale
  • Dam type .................................. Diversion
  • Location ............... 20 mi SW of Vale, OR
  • Watercourse ............................... Malheur
  • Original Construction ....................... 1929
  • National ID Number ........................... NA
  • Hydrologic Unit Code ...................      

Dimensions

  • Crest Elevation .............................  2647.0 ft
  • Structural Height .................................. 21 ft
  • Hydraulic Height .................................. 12 ft
  • Crest Length ........................................ 914 ft
  • Crest Width ....................................             ft
  • Base Width .....................................             ft
  • Volume ............................................ 9,300  cy

 


 

Hydraulics

  • Spillway capacity at El. .................         cfs
  • Diversion capacity ........................    662 cfs

 

Headworks

  • 10.5- by 13-ft canal radial headgate discharging into portal of a tunnel.
  • Spillway: seven 20- by 10-ft hinged steel gates.


Narration

 


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