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Lower Passumpsic

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Record: 10    Segment ID: T3.04-    Stream Name: T3 - Sleepers River

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Stream Channel  
2.1 Bankfull Width 72 ft.
2.2 Maximum Depth 4.0 ft.
2.3 Mean Depth 3.1 ft.
2.4 Floodprone Width 108 ft.
2.5 Recently Abandoned Floodplain 8.4 ft.
  Human Elevated Floodplain 0.0 ft.
2.6 Width/Depth Ratio 23.3
2.7 Entrenchment Ratio 1.5
2.8 Incision Ratio - Redently Abandoned Floodplain 2.1
  Incision Ratio - Human Elevated FloodPlain 0.0
2.9 Sinuosity Low
2.10 Type of Riffles Eroded
2.11 Riffle/Step Spacing Distance Not Applicable
2.12 Substrate Composition  
  Bedrock 0.0 %
  Boulder 3.0 %
  Cobble 32.0 %
  Course Gravel 39.0 %
  Fine Gravel 7.0 %
  Sand 19.0 %
  Silt and smaller 0.0 %
  Clay Present? No
  Percent Detritus 6.0 %
  Large Woody Debris Count 13
2.13 Average Largest Particle On  
  Bed 250 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 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 Entrenchment ratio is a little high at 1.5, however based on field observations this reach appears to be F-type, with steep vertical banks and an inaccessible floodplain.