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Green River LC

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Record: 7    Segment ID: M08-    Stream Name: Green River

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Channel Bed and Planform Changes  
5.1 Bar Types  
  Mid Bar 1
  Point Bar 0
  Side Bar 2
  Diagonal Bar 1
  Delta Bar 0
  Island Bar 0
5.2 Migration Features  
  Flood Chutes 0
  Neck Cutoffs 0
  Channel Avulsions 1
  Braiding 0
5.3 Steep Riffles and Head Cuts  
  Steep Riffles 2
  Head Cuts 1
  Tributary Rejuvenation No
5.4 Stream Ford or Animal Crossing No
5.5 Channel Alterations  
  Straightening Straightening
  Straightening Length 583 ft.
  Dredging None

Comments:
A major channel avulsion was observed mid-segment. A huge depositional area was present upstream and through the avulsed area. Steep riffles were observed towards the top of the segment, a large headcut was present at the bottom of the avulsion where the new channel quickly dropped back to the original channel bottom elevation. This headcut is not likely to advance rapidly up the avulsed channel due to the large size of the bed material.