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Alder Brook

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Record: 1    Segment ID: M01-    Stream Name: Alder Brook

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Channel Bed and Planform Changes  
5.1 Bar Types  
  Mid Bar 6
  Point Bar 4
  Side Bar 3
  Diagonal Bar 1
  Delta Bar 0
  Island Bar 0
5.2 Migration Features  
  Flood Chutes 0
  Neck Cutoffs 0
  Channel Avulsions 0
  Braiding 0
5.3 Steep Riffles and Head Cuts  
  Steep Riffles 0
  Head Cuts 0
  Tributary Rejuvenation No
5.4 Stream Ford or Animal Crossing No
5.5 Channel Alterations  
  Straightening Straightening
  Straightening Length 247 ft.
  Dredging None

Comments:
Historic channel straightening is evident above the road crossing along the adjacent field. There is a significant amount of incision as well as aggradation occurring throughout the reach, suggesting stage III to IV of CEM. A review of historic impacts (aerial photos) reveals historic and current impacts from straightening, and redevelopment of sinuosity. Despite lower w:d ratio, channel is C type. However, any further incision and entrnchment could lead to a G-type channel. Large amounts of armoring have been placed at the outlet of the culvert under River Road to arrest old downcutting (evident).