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Mill Brook - Basin 13

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Record: 4    Segment ID: M05-    Stream Name: Mill Brook

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Stream Channel  
2.1 Bankfull Width 77 ft.
2.2 Maximum Depth 2.5 ft.
2.3 Mean Depth 1.8 ft.
2.4 Floodprone Width 79 ft.
2.5 Recently Abandoned Floodplain 7.1 ft.
  Human Elevated Floodplain ft.
2.6 Width/Depth Ratio 42.7
2.7 Entrenchment Ratio 1.0
2.8 Incision Ratio - Redently Abandoned Floodplain 2.8
  Incision Ratio - Human Elevated FloodPlain 0.0
2.9 Sinuosity Low
2.10 Type of Riffles Sedimented
2.11 Riffle/Step Spacing Distance 200 ft.
2.12 Substrate Composition  
  Bedrock 0.0 %
  Boulder 11.0 %
  Cobble 22.0 %
  Course Gravel 33.0 %
  Fine Gravel 21.0 %
  Sand 13.0 %
  Silt and smaller 0.0 %
  Clay Present? Yes
  Percent Detritus 2.0 %
  Large Woody Debris Count 7
2.13 Average Largest Particle On  
  Bed 600 mm
  Bar 100 mm
2.14 Phase 2 Stream Type  
  Stream Type F
  Bed Material Gravel
  Subclass Slope None
  Dominant Bed Form Plane Bed
  SubDominant Bed Form
  Field Measured Slope
  Phase 1 Stream Type  
  Stream Type B
  Dominant Bed Material Cobble
  Subclass Slope c
  Bed Form Riffle-Pool
  Sub-reach Stream Type  
  Reference Stream Type
  Reference Bed Material
  Reference Subclass Slope
  Reference Bedform
  Were Channel Dimensions Significantly Changed By Major Flooding Yes
  Were channel dimensions significantly changed by human alteration associated with flood recovery efforts (e.g., reshaping of banks by yellow machines)? Yes
  Channel Enlargement 0 %
  Comments Bed scour and subsequent deposition resulted in a habitat departure from riffle pool to plane bed.