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Caswell Beach Dune Infiltration System: An Innovative Approach to Address Road Flooding for Coastal Towns

Recorded On: 2020/02/25

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Portions of Caswell Beach Road become impassible to passenger vehicles from moderate rainfall events and remain impassable for more then eight hours. The road is the only ingress/egress for approximately 240 residents, the Duke Energy Progress Nuclear Pumping Station, the United States Coast Guard Station Oak Island, and the North Carolina Baptist Assembly grounds at Fort Caswell. WK Dickson is assisting the Town with planning, designing and constructing an innovative Dune Infiltration System (DIS) that will accept and infiltrate this stormwater. This new system will allow the Town to pump out the low points along their primary road, increasing the ability for the Town to respond to emergencies during and immediately after storm events and provides an opportunity to safely infiltrate stormwater runoff. Participants will review the main design considerations and site constraints that a community should consider when determining the installation feasibility of these systems.


Learning Objectives:

  1. Learn and identify the design restraints for siting dune infiltration systems.
  2. Evaluate and consider groundwater constrictions for siting and installing dune infiltration systems.
  3. Learn about potential funding options for dune infiltration systems.

Course Level: All

Marc T. Horstman, PE, PH, CFM, MS

Project Manager W.K. Dickson & Co., Inc.

Marc is a project manager in WK Dickson’s stormwater group with an emphasis on municipal stormwater infrastructure, including planning and design, hydraulic and hydrologic modeling, innovative and sustainable site design, and stormwater SCM design. In addition to his proficiency in modeling, Marc’s expertise includes managing a wide variety of projects that include planning and designing innovative water quality devices for Capital Improvement Projects (CIPs), Low Impact Development (LID), and infrastructure upgrades. He has also served as an advisor for the Nutrient Crediting Committee for the State’s BMP minimal design criteria. Marc has both an undergraduate and Master of Science degree in Biological engineering from North Carolina State University. He is a registered Professional Engineer in North Carolina, Georgia, Tennessee and South Carolina; a certified Professional Hydrologist; and a Certified Floodplain Manager.

To receive credit for this class you must listen to the entire presentation, complete the course quiz with a passing grade of 70% of better and complete the course evaluation. After all course components are complete - you will receive .5 Professional Development Hour of credit. 

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Caswell Beach Dune Infiltration System: An Innovative Approach to Address Road Flooding for Coastal Towns
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