Abstract: The invention's structure consists of layered vehicle tires connected both vertically and horizontally to form a continuous barrier structure. The tires are pre-filled with an aggregate matching the medium at the installation site and sealed to retain the fill. This pre-fill generates a neutral buoyancy. The tires are laid flat horizontally with the tread areas touching and formed into a continuous straight row by strapping one to the next with a corrosion resistant material equivalent to stainless steel banding. Successive layers are fabricated and placed atop the initial layer in an offset manner which places the strapped unions directly over the tire center openings of the next lower layer. Strapping is applied vertically between alternate layers and layers are added to reach the desired height of the overall structure. The subsequent structure is installed in a prepared three (3) foot trench running parallel to the coast line.