We addressed the failing infrastructure at Gamble Rogers State Park, where a deteriorating seawall along the Matanzas River and recurring flooding had caused campground closures, unsafe road conditions, and structural damage. The existing seawall exhibited cracking, settlement, and failing anchors that accelerated erosion, while ponding issues persisted across the site.
We reviewed existing site conditions and identified critical constraints including shallow groundwater, sandy soils, size restrictions, and the sensitive coastal environment. A significant challenge involved the asbestos-containing materials in the existing seawall, which required careful removal in compliance with federal and state regulations.
To prevent further soil loss, we designed a replacement seawall system using vinyl wall panels secured with horizontally screwed anchor rods. This design provided adequate strength for the calm water conditions while offering extended service life. We demolished the existing seawall and constructed the new system in its place.
To resolve the flooding problem, we designed detention ponds at low points throughout the site, connected by a network of underground pipes. This interconnected system enabled even water distribution between ponds, preventing uncontrolled flooding at any single location. The pipe network allowed us to reduce individual pond sizes since all ponds functioned collectively, creating a more efficient solution.
The completed restorations improved site drainage, restored safe access, increased seawall strength, and reduced future maintenance requirements. Our project delivered simple and durable solutions that balanced cost, safety, and environmental stewardship while supporting long-term park operations.