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Williams River

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Record: 8    Segment ID: M12-    Stream Name: Williams River

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NOTE: Enter the Confinement Evaluated first, then the Scores, then the rest.

Rapid Geomorphic Assessment  
  Confinement Evaluated Unconfined  
  Geomorphic Assessment Scores
  Score STD (7.5) Historic (7.5)
7.1 Channel Degradation 5 C to F Yes
7.2 Channel Aggradation 10 None No
7.3 Widening Channel 10 None No
7.4 Change in Planform 11 None No
  Total Score 36  
  Condition Rating 0.45  
7.5 Channel Evolution Model F  
  Channel Evolution Stage II  
7.6 Geomorphic Stream Condition Fair  
7.7 Stream Sensitivity Extreme  
7.5 Channel Adjustment Processes Narrative  
  Historic straightening and armor has caused the channel to incise and become entrenched. The existing channel is narrower than curve width and does not have access to the large floodplain areas on either banks. The channel appears fairly stable outside of a few areas of widening and planform adjustment. We assessed this reach as stage II due to incision/entrenchment and we expect the reach to remain there for a long time.