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LID and BMP Modeling in
InfoSWMM and H20Map SWMM
LID Controls
Rain Barrel
Bio-Retention
Cell
Infiltration Trench
Porous Pavement
Vegetative Swale
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Table of Contents
7/4/2012 Engineering Technical Services Page - 2
Low Impact Development (LID) 3
Low Impact Development (LID) 4
LID Controls and Connection to the Subcatchments 5
Simulation Options for LID’s 6
Water Quality Features 7
External Loading Buildup 8
Simulation Options for Quality 9
Buildup/Washoff Options 10
LID’s are Unlimited Per Subcatchment 11
Map Display of the Number of Units per Subcatchment 12
LID Controls in DB Tables 13
LID Layers 14
LID Storage Layer 15
LID Process Components 16
LID Processes 17
LID Usage in DB Tables 18
LID Usage at the Subcatchments 19
Rain Barrel LID 20
Swale LID 21
Components Per Subcatchment 22
LID Report Variables 23
LID Report Text File 24
LID Summary Report 25
LID Report at a Time Step 26
LID Graphs by Subcatchment 27
LID Import and Export to SWMM 5 28
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Low Impact Development (LID)
7/4/2012 Engineering Technical Services Page - 3
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Low Impact
Development features
are small and part of
the subcatchment
runoff flow. They are
best simulated as part
of the subcatchment
and to be successfully
modeled they need to
be varied and
unlimited in number.
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Low Impact Development (LID)
7/4/2012 Engineering Technical Services Page - 4
Home
Low Impact
Development features
are small and part of
the subcatchment
runoff flow. They are
best simulated as part
of the subcatchment
and to be successfully
modeled they need to
be varied and
unlimited in number.
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LID Controls and Connection to the
Subcatchments
7/4/2012 Engineering Technical Services Page - 5
Home
LID Controls
Rain Barrel
Bio-Retention
Cell
Infiltration Trench
Porous Pavement
Vegetative Swale
Pervious Area
Aquifer
Infiltration, Runoff,
Evaporation
LID’s and BMP’s
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Simulation Options for LID’s
7/4/2012 Engineering Technical Services Page - 6
Home
1. Evaporation and infiltration losses from
Storage nodes under Kinematic Wave and
Steady Flow.
2. Unlimited Low Impact Development/BMP
controls per Subcatchment connected to
infiltration and aquifers.
3. Pollutant buildup over a given landuse can
now be specified by a time series instead
of just a buildup function.
4. Improved linkages between lakes, flow
routing, evaporation and infiltration.
Pervious Area
Aquifer
Infiltration, Runoff,
Evaporation
LID’s and BMP’s
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Water Quality Features
7/4/2012 Engineering Technical Services Page - 7
Home
Buildup
Washoff
Routing
• None
• Power
• Exponential
• Saturation
• External
• None
• Exponential
• Rating
• EMC
• Buildup Load
• Deposition Load
• Sweeping Load
• BMP Removal
• Infiltration Load
• Washoff Load
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External Loading Buildup
7/4/2012 Engineering Technical Services Page - 8
Home
New Feature: You can now have an
external time series loading of
subcatchment buildup as well as no buildup
or the various functional buildup.
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Simulation Options for Quality
7/4/2012 Engineering Technical Services Page - 9
H2S Corrosion SWMM 5 Trace Sediment
Home
Other Powerpoint Files describing Water
Quality in InfoSewer and InfoSWMM can
be found here
\\Seraph\Users\Dickinson\InfoSWMM11\LI
D_BMP_WQ
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Buildup/Washoff Options
7/4/2012 Engineering Technical Services Page - 10
Home
None
Power
Saturated
Exponential
External
Buildup
None
Exponential
Rating Curve
EMC
Washoff
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LID’s are Unlimited Per
Subcatchment
7/4/2012 Engineering Technical Services Page - 11
Home
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Map Display of the Number of Units
per Subcatchment
7/4/2012 Engineering Technical Services Page - 12
Home
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LID Controls in DB Tables
7/4/2012 Engineering Technical Services Page - 13
Home
The types of LID
Controls are defined in
the LID Controls DB
Table or in the Operation
Tab of the Attribute
Browser.
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LID Layers
7/4/2012 Engineering Technical Services Page - 14
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LID Layers
Surface
Soil
Storage Pavement
Underdrain
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LID Storage Layer
7/4/2012 Engineering Technical Services Page - 15
Home
LID Storage Layer
Thickness
Void volume /
total volume
saturated hydraulic
conductivity
Clogging factor
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LID Process Components
7/4/2012 Engineering Technical Services Page - 16
Home
Drain+
Storage+
Soil+
Pavement+
Surface+
LID Type
ID
A LID Process consists of five structured
components or layers:
1. Drain
2. Storage
3. Soil
4. Pavement
5. Surface
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LID Processes
7/4/2012 Engineering Technical Services Page - 17
Home
Sub Processes
Processes Sub Areas Input
Precipitation
Pervious
Snow Coverage
Snow Melt
Evaporation
Storage
Runoff LID
Infiltration Ground Water
Impervious
Snow Cover Snow Melt
Evaporation
Storage
Runoff LID
Surface
Thickness
Void Fraction
Roughness
Slope
Pavement Thickness
Soil
Thickness
Storage Thickness
Storage K Sat
Drain Coefficient
Drain Offset
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LID Usage in DB Tables
7/4/2012 Engineering Technical Services Page - 18
Home
The types of LID Usage
are defined in the LID
Usage DB Table or at the
Subcatchment Browser
Level.
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LID Usage at the Subcatchments
7/4/2012 Engineering Technical Services Page - 19
Home
The Number and
Type of LID Usage
along with their
Characteristics are
defined for each
Subcatchment using
the LID Icon.
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Rain Barrel LID
7/4/2012 Engineering Technical Services Page - 20
Home
Storage Flux = StorageInflow - StorageOutflow
Surface Flux = SurfaceInflow - StorageInflow
Soil flux = 0
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Swale LID
7/4/2012 Engineering Technical Services Page - 21
Home
Wilting Point
Saturation * (Porosity – Wilting
Point)
Soil Moisture
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Components Per Subcatchment
7/4/2012 Engineering Technical Services Page - 22
Home
In InfoSWMM you can
simulate unlimited
pollutants for unlimited
landuses per
subcatchment or
watershed with unlimited
LID or BMP Units.
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LID Report Variables
7/4/2012 Engineering Technical Services Page - 23
Home
LID Report
Variables
Surface Inflow
Evaporation
Surface Infiltration
Soil Percolation
Storage Infiltration
Surface Outflow
Storage Outflow
Surface Depth
Soil Moisture
Storage Depth
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LID Report Text File
7/4/2012 Engineering Technical Services Page - 24
Home
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LID Summary Report
7/4/2012 Engineering Technical Services Page - 25
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LID Report at a Time Step
7/4/2012 Engineering Technical Services Page - 26
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LID Graphs by Subcatchment
7/4/2012 Engineering Technical Services Page - 27
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LID Import and Export to SWMM 5
7/4/2012 Engineering Technical Services Page - 28
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InfoSWMM
SWMM 5.0.022 Engine
Import of v1 to v22 SWMM 5
Files
Export of Files to SWMM 5.0.022
SWMM 5 Calibration
Files