Stormwater Management & Flood Modeling with XPSWMM & XPSTORM

Registration sign-in at 8:00AM on the first day
Training from 8:30AM – 5:00PM

Attendance at this workshop will provide a certificate of completion for 7 Professional Development Hours per day.

About the workshop:

This class will focus on stormwater modeling, starting with basic hydrology and hydraulics on the first-half of day one. The second part of day one will provide more in-depth instruction and exercise for Low Impact Development (LID) modeling, as well as other more advanced stormwater modeling functions and tools such as dual drainage and storage. The second day will delve into 1D river modeling and integrated 1D/2D modeling.

Innovyze Workshops cater to a variety of skill levels. However, to make the best use of class time it is recommended that anyone who attends a training go through the Getting Started Manual for xpswmm/xpstorm. This requires access to a license of the software. If you do not have access to a license, please contact your representative.

Course Agenda:


xpswmm/xpstorm Interface and Hydrology Analysis

  • xpswmm/xpstorm Graphical User Interface (GUI)
  • SCS Hydrologic Methods and SWMM Hydrologic Methods
  • Add a DTM layer, background image and Import nodes, links and catchments from shape files
  • Use tools to calculate subcatchment areas, catchment assignment and hydrologic parameters
  • Create Design Storms
  • Solve and Review Hydrologic Results

Hydraulic Analysis

  • Review 1D Hydraulics Theory/Capability
  • Create a 1D Hydraulic model from various Import capabilities
  • Troubleshoot and Run a xpswmm/xpstorm model
  • Solve and Review Hydraulic Results
  • Use Global Storms and compare model runs

Modeling Low Impact Development (LID)

  • Flow redirection of impervious flow to pervious surfaces
  • Modeling rainwater storage tanks, rain gardens, bioretention swales, etc
  • Modeling pervious pavement
  • Model infiltration trenches

Advanced Stormwater Modeling Tools

  • Automated Conduit Sizing
  • Surface Ponding and Node Storage
  • Dual drainage
  • Pond storage and optimization
  • Outlet Structures

Q&A (balance of remaining time)


1D River Modeling

  • Open Channel Hydraulics Theory
  • Import cross sections including from HECRAS
  • Generate cross-sections from a Digital Terrain Model
  • 1D Floodplain Model
  • Floodplain Mapping Results

Integrated 1D/2D River and Culvert Modeling

  • 2D Model Theory
  • 2D Model with Culverts
  • Linking 1D (Channel) and 2D Model
  • 2D Model Troubleshooting
  • Solving and 2D Map and Vector Results Tools
  • Exporting Inundation Maps to GIS

Advanced 1D/2D Integrated Modeling in Urban Areas

  • Linking Storm Sewers to 2D Modeling
  • Integrated 1D/2D Urban Flooding Example
  • Scenario Manager and 2D modeling of Flood Mitigation
  • Dynamic Elevation Shapes Example of Flood Wall Breaching
  • Multiple Domain Example in an Urban Area
  • Emergency Response Demo Example

Q&A (balance of remaining time)

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