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Williams River

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Record: 27    Segment ID: T5.05-    Stream Name: Middle Branch 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 7 C to F No
7.2 Channel Aggradation 11 None No
7.3 Widening Channel 4 None No
7.4 Change in Planform 13 None No
  Total Score 35  
  Condition Rating 0.44  
7.5 Channel Evolution Model F  
  Channel Evolution Stage III  
7.6 Geomorphic Stream Condition Fair  
7.7 Stream Sensitivity Extreme  
7.5 Channel Adjustment Processes Narrative  
  Segment T5.05B is encroached by Rt 11 and several residential properties. During T.S. Irene and subsequent flooding the channel scoured down and widened. Following these events, large depositional bars have formed in the channel. We observed active bank erosion and ongoing deposition indicating that the reach is in Stage III. The scour and widening during the floods has lead to disconnected floodplains and a stream type departure from C to F.