Gravix D.O.T. Retaining Wall System
The Gravix wall units vary in stem depth dependent upon the wall height, as well as surcharge. A standard unit is 32 SF of face area (8’ x 4’). A typical wall section has the longest units at the bottom and get shorter as they are stacked vertically. Also, at the top of a wall, to follow grade, the casting mold is placed on a tilt table to allow the top of the unit to be cast on a slope. The sloping top edge of the units allows all of the unique geometry top units to be precast and customized for each project. The angled precasting also produces a leveling unit to be used directly below traffic barrier units to allow the uniform traffic barrier unit to parallel roadway grade. The precaster can then provide a complete retaining wall package to the highway contractor. Gravix, providing the larger precast unit and a complete retaining wall system, allows the highway contractor to use less labor, common equipment and achieve higher installation rates, saving time and money.