• New Tools for Design of Stormwater Source Controls

  • Project Components:
    Conference Presentation, Stormwater
New Tools for Design of Stormwater Source Controls
2012 BC Water and Waste Association (BCWWA) Conference

KWL's Laurel Morgan made a presentation at the 2012 BC Water and Waste Association annual conference in Penticton, B.C.

ABSTRACT

Metro Vancouver’s 2005 Stormwater Source Control Design Guidelines (SSCDG) were developed for use by landscape architects and planners, and were not intended to be used for engineering design and construction.  In 2011, Metro Vancouver initiated an update and expansion to the SSCDG to include engineering sizing and design refinements.  Engineering equations and examples were added to assist municipal staff and developers’ consultants with sizing of source controls.  Using these tools, source controls in the Metro Vancouver region can be sized simply, based on such parameters as location, lot size and configuration, stormwater target, rainfall, and soil infiltration rate – all without the need of running models.

The tools were developed through a process of continuous simulation modelling that determined unit or typical sizing for specified stormwater targets.  This required many iterations to define “typical” sizing that could be widely applied across the Metro Vancouver region.  The results were converted to simplified sizing tools to yield required design volumes and/or surface areas for the various source control measures. 

This presentation will review the updates and additions to the SSCDG, describe the methodology used in developing the sizing tools, and demonstrate how to use these new tools.

Key learning points are:

  • Metro Vancouver’s Stormwater Source Control Design Guidelines now provide tools to simplify source control sizing for engineering design and construction applications.
  • Examples will illustrate how to use these new tools.

To view her presentation, click on the download button below.

Resources: 
Presentation (application/pdf, 5.527Mb)