Webinar Wednesday - Low Impact Development (LID)

  • 19 Aug 2015
  • 12:00 PM - 1:00 PM
  • Online


  • Not a member of PSLS
  • Member of a professional organization in the Geospatial industry such as NSPS, PSPE, PCPG, etc.
  • Member of PSLS

Online registration is now closed.  If you wish to participate in this webinar and have not registered, contact Laurie at psls@psls.org. 

Title: Low Impact Development (LID)

Presented by: Paul A. DeBarry, P.E. P.H. GISP, D.WRE

Date: August 19, 2015

Time: 12:00 PM


  • PSLS Members: $35
  • Non-Members: $50
  • Member of  Other  Professional Organization: $35

CE Credits: 1 PDH

Description: This webinar will provide an overview of what low impact development(LID) is, its advantages to conventional design, review local site investigations required and open space design, will discuss design criteria and LID hydrology, and provide working examples of various types of LID and best management practices (BMPs) and where they are applicable.

An introduction/overview of open space designs, processes and best management practices (BMPs)

  • Introduction/Overview of LID
  • Local Site Investigation
  • Open Space Design
  • LID Hydrology/Stormwater Design Criteria
  • BMPs and Their Functions
    • Permeable materials
    • Bioretention areas/rain gardens
    • Street BMPs
    • Green roofs
    • Water harvesting
  • Retrofits
  • Case Studies

PresenterPaul A. DeBarry, P.E. P.H. GISP, D.WRE received his BS in environmental resource management from Penn State and his MS in civil engineering – water resources from the University of Virginia.  Mr. DeBarry is Technical Director of Watersheds and Geospatial Technologies and a senior project manager at NTM where he oversees projects related to watershed and floodplain management, hydrologic studies, bridge hydraulics, dams, BMP design and water supply planning.  He recently had a book published by John Wiley & Sons entitled “Watersheds: Processes, Assessment and Management”.  Mr. DeBarry was an Instructor at Penn State - Wilkes-Barre, for the “Computational Methods in Stormwater Management” short course at University Park, “Land Development Design” at Penn State Wilkes-Barre, and taught soils at Wilkes University.  He served on the PA DEP BMP manual technical advisory committee.  

Mr. DeBarry has been project manager for over 30 Act 167 Watershed Stormwater Management Plans and has seen the program evolve from originally only managing for flood peaks, to a more comprehensive approach to manage to promote infiltration and improve water quality.  He has also been instrumental in developing GIS applications for watershed modeling to apply to Act 167 projects and bridge and floodplain hydrologic modeling.  He has also been project manager on development of PennDOT’s Drainage Manual, DelDOTs Bridge Manual, development of the new PDT-IDF rainfall curves, many bridge and floodplain and hydrologic and hydraulic analyses, and water supply planning projects.

Note: Members of other Professional societies such as PSPE, NSPS, ACSM, or other state surveying societies may register at the discounted price. In order to receive the necessary code, registrants must contact PSLS with proof of membership. 
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