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MANNING'S 'N' VALUE ...

MANNING'S 'N' VALUE: 0.073

  Location: Boundary Creek near Porthill, Idaho
  Discharge at peak, m3/s: 72  
  Description of Channel: Bed consists of boulders; d50 = 210mm, d84 = 375mm. Banks are composed of boulders and have trees and brush along top.  

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