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White River - First Branch

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Record: 1    Segment ID: M01-    Stream Name: First Branch of the White 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 4 C to B Yes
7.2 Channel Aggradation 11 None No
7.3 Widening Channel 10 None No
7.4 Change in Planform 10 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 Very High  
7.5 Channel Adjustment Processes Narrative  
  Planform adjustments manifesting primarily as minor to major widening following historic incision related in part to valley constriction from Rte 110 construction and maintenance. Entrenchment is sufficiently deep that we felt the RB terrace is likely a glacial feature rather than historical (entrenchment related to emptying of glacial Lake Hitchcock rather than historic incision) and now functions as RVW; in conjunction with riprap along Rte. 110 on LVW lends to a C-->B stream type departure.