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Mill Brook - Basin 13

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Record: 8    Segment ID: M07-    Stream Name: Mill Brook

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Stream Channel  
2.1 Bankfull Width 49 ft.
2.2 Maximum Depth 3.6 ft.
2.3 Mean Depth 3.0 ft.
2.4 Floodprone Width 62 ft.
2.5 Recently Abandoned Floodplain 8.3 ft.
  Human Elevated Floodplain ft.
2.6 Width/Depth Ratio 16.4
2.7 Entrenchment Ratio 1.3
2.8 Incision Ratio - Redently Abandoned Floodplain 2.3
  Incision Ratio - Human Elevated FloodPlain 0.0
2.9 Sinuosity Low
2.10 Type of Riffles Eroded
2.11 Riffle/Step Spacing Distance 200 ft.
2.12 Substrate Composition  
  Bedrock 0.0 %
  Boulder 7.0 %
  Cobble 48.0 %
  Course Gravel 25.0 %
  Fine Gravel 11.0 %
  Sand 9.0 %
  Silt and smaller 0.0 %
  Clay Present? Yes
  Percent Detritus 3.0 %
  Large Woody Debris Count 15
2.13 Average Largest Particle On  
  Bed 400 mm
  Bar Not Applicable
2.14 Phase 2 Stream Type  
  Stream Type F
  Bed Material Cobble
  Subclass Slope None
  Dominant Bed Form Plane Bed
  SubDominant Bed Form Riffle-Pool
  Field Measured Slope
  Phase 1 Stream Type  
  Stream Type C
  Dominant Bed Material Gravel
  Subclass Slope None
  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 No
  Were channel dimensions significantly changed by human alteration associated with flood recovery efforts (e.g., reshaping of banks by yellow machines)? No
  Channel Enlargement 0 %
  Comments Some human caused change in valley width and the valley is naturally variable through the segment. Primarily a broad valley by reference and it is currently still broad, but close to narrow for much of the reach.