Barricades shall be continuous, stable, and non-flexible and shall consist of a solid wall or fence or a Type II or Type III barricade as specified in MUTCD section 6F-60 with the bottom or lower rail 1-1/2 inches
(38 mm) maximum above the ground or walkway surface, and the top of the fence, wall or upper rail 36 inches
(915 mm) minimum above the ground or walkway surface. Barricade support members shall not protrude beyond the barricade face into the pedestrian access route or alternate circulation path