A barrier section for separating the center of a two-way roadway is disclosed herein including a thickened foot portion embedded in the ground with an integrally formed upstanding rail portion rising vertically above the surface of the ground. The foot portion is provided with an open-ended conduit or duct and passageways are provided at an angle leading from the ground surface to the duct in a downwardly converging arrangement. Both barrier portions include steel rod reinforcement extending longitudinally and transversely with respect to the duct. Interlocking devices are carried on opposite ends of the barrier for mating with and interconnecting with additional adjacent barrier sections.
