SWMM - LID Controls - Rain Garden

Rain Garden - are a type of bio-retention cell consisting only of the engineered soil layer, with no gravel layer below it

Schematically:

• Identification
  • Name (Name, String) - identifies the LID control
    Avoid names that are too long, or that contain the following characters: '*', '>', '<', '/', '\', '"', ':', ';', '|', '=', '`', '#', ',', '?'
  • Description (Description, String) - informational text informationl
• SWMM
  • Storage (LidStorage, SwmmLidDataStorage)
    • Storage Height (StorageHeight, Double) - Gravel layer thickness or Rain Barrel height
    • Clogging Factor (CloggingFactor, Double) - Total volume of treated runoff required to completely clog the bottom of the layer divided by the void volume of the layer
    • Void Ratio (VoidRatio, Double) - The volume of void space in relation to the volume of solids in the layer
    • Infiltration rate (SeepageRate, Double) - The rate at which water penetrates the native soil below the layer
  • Soil (LidSoil, SwmmLidDataSoil)
    • Field Capacity (FieldCapacity, Double) - Volume of pore water in relation to total volume after soil drains completely
    • Hydraulic Conductivity (Condutivity, Double) - Hydraulic Conductivity for fully saturated soil
    • Conductivity Slope (CondutivitySlope, Double) - Slope of the curve of log (Conductivity) versus soil moisture content (dimensionless)
    • Thickness (SoilTickness, Double) - Thickness of the soil layer
    • Wilting Point (WiltingPoint, Double) - Volume of pore water in relation to total volume for a very dry soil, where only bound water remains
    • Porosity (Porosity, Double) - The volume of pore space in relation to the total soil volume
    • Suction Potential (SuctionHead, Double) - The average value of soil capillary suction along the wetting front
  • Surface (LidSurface, SwmmLidDataSurface)
    • Vegetable Coverage (VegetalCover, Double) - Vegetal Coverage
    • Slope (SurfaceSlope, Double) - Surface slope
    • Side Slope (SwaleSlope, Double) - Slope of the side walls of a cross section of a ditch
    • Storage Depth (BermHeight, Double) - Storage Depth
    • Surface Roughness (SurfaceRoughness, Double) - Roughness