Chestnut Bay Nature-based Flood Mitigation
Conway, SC
In collaboration with The Nature Conservancy of South Carolina (TNC) and the City of Conway, RDE designed several flood mitigation projects located in a Conway neighborhood that has been repeatedly affected by catastrophic riverine and stormwater flash flooding. Many properties in this neighborhood were acquired by the City of Conway via voluntary buyouts facilitated by FEMA’s Hazard Mitigation Grant Program (HMGP) and were identified by the TNC and the City as prime locations to implement nature-based flood mitigation projects. RDE developed ”shovel-ready” flood mitigation projects that can be implemented in the near-term, including a constructed wetland with pedestrian boardwalks that will make the restoration accessible to the public. RDE conducted community engagement sessions, performed design and engineering services, completed a master plan for the watershed, and has helped facilitate the process of applying for grants to fund the designed projects.
The area around Crabtree Swamp in the aftermath of Hurricane Florence
Schematic section of permanent and temporary (intense rain event) pool levels
Schematic section of the protective capacity of a proposed low flood berm and walking path
Modeling flood levels in the drainage basin using GIS
A schematic diagram demonstrating the multiple benefits of nature-based flood mitigation
Existing and proposed schematic sections of Crabtree Swamp
A rendering envisioning what the wetland boardwalk may look like