Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

PresetUnited KingdomUnited States
Urb-Res-Dev (US exclusive area inflow)Not Available (US only)
  • Preliminary Sizing
    • Volumetric Runoff Coefficient 0.7
    • Percentage Impervious: 85%
    • Time of Concentration 8 min
  • Dynamic Sizing
    • Runoff Method: SCS
      • Pervious Curve Number 69
      • Time of Concentration 8 min
      • Shape Type: Curvilinear
      • Shape Factor 484
      • Initial Abstraction Type: Fraction
      • Initial Abstraction Fraction 0.2
      • Percentage Impervious 85%
Urb-Res-Existing (US exclusive area inflow)Not Available (US only)
  • Preliminary Sizing
    • Volumetric Runoff Coefficient 0.25
    • Percentage Impervious: 15%
    • Time of Concentration 12 min
  • Dynamic Sizing
    • Runoff Method: SCS
      • Pervious Curve Number 69
      • Time of Concentration 12 min
      • Shape Type: Curvilinear
      • Shape Factor 484
      • Initial Abstraction Type: Fraction
      • Initial Abstraction Fraction 0.2
      • Percentage Impervious 15%
Manhole
  • Toggle: Invert Level
  • Toggle: Invert Level
Standard MH (UK & US exclusive manhole)
  • Toggle: Invert Level
  • Depth 1.5m
  • Chamber Shape: Circular
  • Diameter 1.2m
  • Toggle: Invert Level
  • Depth 5ft
  • Chamber Shape: Circular
  • Diameter 4.2ft
Rectangular Vault (US exclusive manhole)Not Available (US only)
  • Toggle: Invert Level
  • Depth 8ft
  • Chamber Shape: Rectangular
  • Length 20ft
  • Width 10ft
Pipe Connection
  • Colebrook-White Roughness 0.6
  • Diameter 100mm
  • Diameter 12in
Trapezoidal ChannelNo changes
  • Base 36in
  • Side slope 1:2
Bioretention
  • Toggle: Base
  • Toggle: Base
  • Depth 2ft
  • Freeboard 6in
  • Filtration rate 20in/hr
  • Underdrain on
    • Number of barrels 1
    • Diameter 6in
  • Soil layer
    • Depth 18in
    • Void Porosity 30%
    • Percolation rate 8in/hr
  • Storage layer
    • Depth 6in
    • Void Porosity 40%
Pond
  • Toggle: Base
  • Toggle: Base
  • Depth 60in
  • Freeboard 6in
Tank
  • Toggle: Base
  • Toggle: Base
  • Depth 48in
  • Freeboard 6in
  • Void Porosity 95%
Porous Paving
  • Toggle: Base
  • Toggle: Base
  • Depth 24in
  • Paving Layer Depth 4in
  • Membrane percolation rate 20in/hr
  • Void Porosity 40%
Swale
  • Toggle: Base
  • Toggle: Base
  • Depth 42in
  • Side slope 1:4
  • Freeboard 6in
  • Filtration rate 8in/hr
Dry Swale (UK & US exclusive swale)
  • Toggle: Base
  • Side Slope 1:4
  • Trench On
  • Toggle: Base
  • Depth 42in
  • Side slope 1:4
  • Freeboard 6in
  • Filtration rate 8in/hr
  • Trench on
    • Depth 24in
    • Void Porosity 30%
    • Underdrain on
      • Diameter 6in
      • Number of barrels 1
Infiltration Trench
  • Toggle: Base
  • Toggle: Base
  • Depth 48in
  • Void Porosity 30%
ChamberNo changes
  • Arch
    • Length 8.5ft
    • Wall thickness 2in
    • Base 52in
    • Height 30.5in
  • Embedded on
    • Void Porosity 30%
    • Above 0.5ft
    • Below 0.5ft
    • Sides 1ft
    • Ends 1ft

...