#INFOSWMM

Infiltration Trench LID Control for #LID’s in #SWMM5 and #InfoSWMM


Infiltration Trench LID Control for #LID’s in #SWMM5 and #InfoSWMM

This is an introduction along with images of the LID Control and data require3ments in InfoSWMM. Every InfoSWMM Control uses from one to 5 layers of data – each with different data requirements. You can use the Siting Manger of InfoSWMM Sustain to find LID locations and the LID Optimizer to find the optimized number of units, cost of units, area and thickness of the LID layers based on your runoff and water quality control objectives.

The Infiltration Trench LID Control has three components or Process Layers: Surface, Storage and Underdrain.

The Surface Process Layer consists of:

· The Storage Depth in inches or millimeters

· The Vegatative Cover Fraction (0 to 1),

· Surface Roughness (Manning’s n)

· Surface Slope (percent).

The Storage Process Layer consists of:

· The Storage Height in inches or millimeters,

· The Void Ratio as a Fraction (0 to 1),

· Surface Conductivity in inches/hour or millimeters/hour,

· Clogging Factor

The Underdrain Process Layer consists of:

· Drain Coefficient (inches/hour or millimeters/hour)

· The Void Ratio as a Fraction (0 to 1),

· Drain Exponent,

· Drain Offset Height (inches or millimeters)

An example of an Infiltration Trench.

The three layers used in a simulation for a Infiltration Trench LID are shown in the following image.

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