Abstract: Adjustable concrete forms, typically fabricated from steel, allowing variation in the height, tilt, and shape of the form of gravity wall sections. The adjustable concrete form includes adjustable height vertical and sloped walls to change the height of the form through the operation of built-in mechanical jacks, such as ball screw assemblies. The separation distances at top and bottom of the walls can be adjusted by upper connectors (e.g., tie bars) and lower connectors (e.g., base straps). The same adjustable concrete form is assembled, used to pour a gravity wall section, disassembled, repositioned, and reassembled a virtually unlimited number of times to create varying height, tilt, and shape gravity wall sections for mile after of roadway construction.