Adjustable mold for making precast concrete traffic barrier panels with different geometries for use in modular earth retaining walls

An adjustable mold for making precast concrete traffic barrier panels with different geometries for creating a continuous traffic barrier by placing the traffic barrier panels in a contiguous side-by-side arrangement adjacent a roadway atop a modular earth retaining wall, each traffic barrier panel having a body with at least front, back, top, bottom, left, and right sides, the adjustable mold comprising:

• a mold body having a plurality of walls that define an interior chamber, a door opening to the interior chamber, and a concrete inlet to the interior chamber;
• a door, the door designed to be installed on and to be uninstalled from the mold body to respectively close and open the door opening, the door having adjustable forming panels that are designed to define a left side two-dimensional geometry and a right side two-dimensional geometry of the left and right sides respectively of a traffic barrier panel to be made, each of the two-dimensional geometries being changeable by adjusting the adjustable forming panels among a plurality of possible fixed settings, each setting defining a particular traffic barrier panel with a particular left side two-dimensional geometry and a particular right side two-dimensional geometry at the left and right sides, respectively, that are different than other settings;
• and
• wherein the interior chamber of the mold body in combination with an interior side of the door define an outer surface geometry of the front, back, top, bottom, left, and right sides of the traffic barrier panel to be made.