VO SWMM

Modeling Process

A Simpler Modeling Process

VO SWMM simplifies hydraulic modeling into three intuitive steps — from building your drainage network to evaluating system performance and communicating results.

Hover over each step to explore details
Import Existing Infrastructure

If available, start by importing GIS, CAD, survey data, or existing network information to accelerate model development.

Import
  • GIS
  • CAD
  • Survey
  • Existing sewer network
  • Terrain
Define the Network

Create and connect the components that make up your drainage system, including:

Components
  • Pipes
  • Manholes
  • Catch Basins
  • Channels
  • Culverts
  • Storage Units
  • Pumps
  • Outfalls
Verify the Design

Review network connectivity, catchment assignments, flow paths, and hydraulic properties before applying rainfall and running simulations. Employ the "Error List" function to automatically detect and then resolve system errors.

Apply Rainfall & Inflows

Define design storms, inflows, RDII, time patterns and control rules.

Configure Hydraulic Parameters

Assign pipe properties, roughness, control structures, and outlet conditions.

Evaluate System Performance
Review
  • Flow
  • Velocity
  • Hydraulic Grade Line
  • Surcharge
  • Flooding
Compare Design Alternatives

Evaluate existing versus proposed conditions and upgrade options.

Deliver Review-Ready Results
Generate
  • Profiles
  • Maps
  • Graphs
  • Tables
  • Reports
Features

Modeling Capabilities

VO SWMM brings together the tools engineers need to build hydraulic models, evaluate system performance, and clearly communicate results—all within one intuitive environment.

Micro-Drainage

Objective

Accelerate the design of storm sewer networks through automated micro-drainage tools.

Tools
Generate Capture Curve
Automatic Catch Basin assignment
Automatic Transect assignment
Automatic Manhole Inflow Rating Curve assignment

Integrated GIS Tools

Objective

Create hydraulic models from spatial data while reducing manual setup.

Tools
Import/Create Shapefiles
DRMT
DEM processing
Automatic subcatchment delineation
Automatic storage unit creation

Network Modeling

Objective

Build and edit hydraulic networks using an intuitive visual modeling environment.

Tools
Error Detection List
Visual Network Editor
Conduits
Manholes
Catch Basins
Channels
Culverts
Pumps
Storage Units

Hydraulic & Flood Analysis

Objective

Analyze hydraulic system performance during both design and extreme storm events.

Capabilities
Dynamic Wave Routing
Hydraulic Grade Line
Flow & Velocity
Surcharge Analysis
Overflow Paths
Inlet Capture
Flood Mapping
Ponding
Plot Calibration

Infrastructure Design

Objective

Design and evaluate stormwater infrastructure performance and compare alternative designs.

Tools
Storage Facilities
Outlet Structures
Hydraulic Controls
Scenario Comparison

Dual Drainage Modeling

Objective

Analyze the interaction between underground storm sewers and surface drainage systems.

Capabilities
Major/minor system modeling
Street flow
Inlet capture
Surface routing
Sag analysis

Inflow & Infiltration

Objective

Evaluate wet-weather inflow and groundwater infiltration affecting sanitary sewer system performance.

Capabilities
RDII analysis
Manhole inflow
Groundwater interaction
I/I evaluation

Water Quality

Objective

Assess pollutants throughout the drainage system.

Capabilities
Water Quality
Pollutant Buildup
Washoff
Groundwater Interaction

Results & Reporting

Objective

Communicate hydraulic performance through clear outputs.

Tools | Capabilities
Elevation Profiles
Maps
Graphs
Tables
Scenario Comparison
Exportable Reports