Florida has approximately 1,197 miles of open coast sandy beaches — and 26.6 percent of that total is designated as critically eroding, meaning development or recreation infrastructure is directly threatened. The state's vulnerability is structural: no point in Florida sits more than 105 meters above sea level, and the majority of its population, transportation corridors, and infrastructure are concentrated in coastal counties where erosion and storm surge operate simultaneously.
Hurricane Ian's 2022 landfall made that risk concrete. A 15-foot storm surge severed the Sanibel Causeway — the only road connecting Sanibel Island to mainland Florida — washing away roadway and causeway approaches and leaving more than 6,400 residents isolated. The barrier island system that Florida's coastal highways depend on is inherently dynamic: storm surge scours sand from beneath roadway approaches, wave overwash severs evacuation routes, and longshore drift continuously redistributes sediment away from stabilized shorelines.
GeoStabilization International engineers revetment systems, bioengineering, and living shoreline solutions across Florida's most vulnerable corridors — with in-house geotechnical engineers who design every solution and field crews who build it under a single FDOT-ready contract.
Florida's erosion conditions differ significantly between the Gulf Coast and Atlantic shorelines. Atlantic beaches typically experience erosion rates between 0 and -3 feet per year under normal conditions, with extreme events compressing years of change into a single storm. Gulf Coast beaches average lower long-term erosion rates due to reduced wave energy, but are acutely vulnerable to hurricane storm surge — which can remove feet of dune and beach material in hours and undermine causeway approaches and coastal road embankments without warning.
The behavior of barrier island inlets further complicates protection design. Of Florida's 67 barrier tidal inlets, the majority have been modified with jetties or dredging for navigation — changes that interrupt longshore sediment transport and accelerate erosion on the down-current side. GeoStabilization International's engineers assess local sediment transport patterns and inlet dynamics as part of every coastal protection design, ensuring solutions are calibrated to site-specific conditions rather than generic standards.
Revetment and armor systems that don't account for sediment budget and longshore transport can transfer erosion to adjacent properties, creating new problems while solving the immediate one. GeoStabilization International's approach starts with survey-confirmed data on wave energy, sediment movement, and shoreline change history — information that shapes armor sizing, placement, and toe design for each specific corridor.
For Florida sites where hard armor alone isn't appropriate — environmentally sensitive areas, mangrove-adjacent corridors, or locations where natural sediment contribution matters — GeoStabilization International integrates living shoreline approaches alongside structural protection. Vegetated dune reinforcement, oyster reef integration, and bioengineered slope stabilization address the root causes of erosion while working with Florida's coastal ecosystems rather than against them.
FDOT and Florida's infrastructure asset owners benefit from GeoStabilization International's end-to-end design and construction integration. The engineers who assessed your site's wave exposure and sediment conditions stay directly connected to the crews building the protection system. When field conditions differ from initial assessment — as Florida's dynamic coastal geology regularly produces — our team adapts immediately without breaking project momentum.
When engineering and construction are split between separate firms, conditions that differ from initial assumptions create disputes instead of solutions. GeoStabilization International's engineers and field crews operate as one integrated team under one contract — from first boring to final installation.
Storm surge, longshore drift, and sea level rise keep Florida's coastline in constant motion — and infrastructure built in the erosion zone faces that pressure year-round. GeoStabilization International's engineers are ready to assess your site and deliver a protection system built for Florida's coastal conditions. Request a coastal assessment to get started.
