As a Senior Field Operations Specialist with Exo, I’ve seen firsthand how Florida’s weather can turn a minor property issue into a major emergency. That’s exactly what happened one Tuesday morning during the peak of hurricane season in Miami Gardens. I received a call from a clearly stressed property manager of a large multifamily complex. An approaching tropical storm was in the forecast, and the recent downpours had made their already uneven walkways a significant liability.
She explained that several concrete slabs along the main path to the community pool and leasing office had shifted, creating dangerous lips and trip hazards. With the ground saturated from the constant August rains, the problem was getting worse by the day. Residents were already complaining, and she was terrified of an injury, especially with the potential for high winds and heavy rain forcing people to hurry. She needed an immediate solution for commercial walkway hazard removal and asked if Exo could help on such short notice. I assured her that this is precisely the kind of situation our teams are trained and equipped to handle.
The Assessment
I was on-site within a few hours. The property, with its sprawling grounds and architecture reminiscent of the area's 1950s origins, had long, winding concrete sidewalks. The problem was immediately apparent. The saturated soil, a common issue in established Miami Gardens neighborhoods during the storm cycle, had lost its ability to support the concrete slabs evenly. Water was channeling underneath, creating voids and causing some sections to sink while others were pushed up by tree roots.
I walked the entire property with the manager, marking each hazard with temporary paint. We identified over a dozen distinct trip hazards, with some vertical displacements measuring over an inch and a half - a clear violation of ADA standards and a major lawsuit waiting to happen. These weren't just cracks; they were sharp, dangerous ledges. You could see where the original concrete, poured decades ago, was finally succumbing to the unique pressures of the Florida climate.
My assessment for the client was straightforward:
- Immediate Risk: The current state of the sidewalks posed an immediate and high risk of trips and falls, a liability that would be amplified by stormy weather.
- Underlying Cause: Soil saturation and erosion were the primary culprits. A simple patch-and-grind approach wouldn't be a lasting solution for the sunken slabs.
- The Two-Fold Problem: We had two types of issues. Some slabs had sunk significantly and needed to be lifted back to their original height. Others had created minor but still dangerous lips that could be corrected with grinding.
I explained that a full rip-and-replace was unnecessary, disruptive, and far too slow for their urgent needs. Instead, I recommended a targeted approach using Exo's advanced techniques for sidewalk leveling in Miami Gardens. The goal was to restore safety and accessibility in the fastest, most efficient way possible before the storm's arrival.
Our Solution
With the assessment complete and the property manager’s approval, the Exo team mobilized for a rapid-response operation. Our promise was to have all hazards eliminated within 48 hours, a timeline that gave the client immense peace of mind.
Our two-person specialty crew arrived the next morning. Our plan was methodical and designed for minimal disruption to the residents. We tackled the project in two phases:
Phase 1: Polyurethane Foam Injection (Slab Lifting) For the sections that had sunk, we used our state-of-the-art polyurethane foam injection process. This technique is ideal for the wet conditions we were facing. Unlike traditional mudjacking, which uses a heavy slurry that can be washed away, our high-density, structural polyurethane foam is hydrophobic - it repels water and can even be injected directly into saturated soil.
- Our technicians drilled a series of small, penny-sized holes into the sunken slabs.
- We then injected our two-part polymer, which expands and cures within minutes. This expansion gently and precisely lifted the concrete slabs back to their correct height, filling the voids underneath and stabilizing the soil.
- The process is incredibly clean and quiet. Within 15 minutes of the final injection in an area, the slab was stable and ready for foot traffic.
This phase was critical for providing a long-term fix. By stabilizing the soil base, we weren't just lifting the concrete; we were preventing it from sinking again in the next downpour. This is a core part of the value Exo brings to every project.
Phase 2: Emergency Sidewalk Grinding For the smaller lips and uneven joints - those under a half-inch - lifting wasn't necessary. Here, we performed emergency sidewalk grinding Florida style: fast, precise, and effective. Our technicians used specialized diamond grinders to shave down the high side of the concrete, creating a smooth, ADA-compliant transition.
This process is much faster and more cost-effective than lifting for minor hazards. It allowed us to address every single marked hazard on the property, ensuring a comprehensive ADA trip hazard repair after the storm season's impact. The combination of lifting and grinding allowed us to create the perfect custom solution for the property's specific needs.
The Results
In just under 36 hours from our crew's arrival, the project was complete. Every one of the identified trip hazards was gone. The main walkways were now level, safe, and fully accessible. The before-and-after was dramatic. Where there were once dangerous ledges that could catch a toe and send someone sprawling, there were now smooth, even surfaces.
The property manager was ecstatic. She walked the property with me one last time, running her foot over the newly leveled joints. The relief on her face was the best testament to a job well done. She mentioned that the speed and professionalism of the Exo team had saved her from a week of sleepless nights. The residents could now navigate the property safely, even in the gusty, rainy conditions that followed.
Key outcomes included:
- 100% Hazard Removal: All 14 major trip hazards were eliminated across 400 feet of primary walkway.
- 48-Hour Turnaround: We met our aggressive timeline, completing the work with a full day to spare before the storm's outer bands arrived.
- No Disruption: Residents were able to use the sidewalks almost immediately after our crew finished in each section.
- Cost-Effective: Our targeted solution saved the client tens of thousands of dollars compared to the cost of a full concrete replacement.
This project is a perfect example of what makes me proud to work for Exo. We didn't just pour concrete; we delivered a solution. We responded to an emergency, assessed the root cause, and deployed the right technology to solve the problem quickly and permanently.
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