Redi-Rock Retaining Wall Built in a Tidal Florida Swamp
When Florida contractor Osborne Construction & Design was called in to address a failing rock revetment wall, the constraints were quickly apparent: tight working room between the house and the existing wall, clogged drainage that caused erosion, and site conditions near the water table. In this video, Parker Osborne, owner of Osborne Construction & Design, explains how his team rebuilt the solution using an 800 sq ft Redi-Rock gravity wall, pushing the wall footprint outward to improve structural performance while staying within a limited work zone.
Parker breaks down the construction approach, including a 24–30 inch footer with mechanical stabilization, a base course using Redi-Rock’s 52 in XL Hollow Core blocks, and a drainage strategy designed to allow water to flow through the system rather than building pressure behind the wall. With open joints and stone drainage behind the blocks, the wall allows water to rise and fall during storm events, resulting in reduced hydrostatic pressure and eliminating the need for weep holes or dewatering, common failure points in concrete masonry unit and cast-in-place walls.
From an installation standpoint, this project highlights real-world efficiency. A small crew utilizing machine-set installation was able to work within a tight footprint, manage deliveries despite weather delays, and complete the wall in approximately four weeks. With a minimal staging footprint and straightforward block placement, Parker used the Redi-Rock system to keep the project moving despite challenging site conditions.
“It's like building with big Legos, and you get to grow up from playing in the sandbox to a larger sandbox with larger equipment.”
-Parker Osborn, Owner, Osborn Construction & Design