A barrier gate for preventing access to a restricted area which is designed to be lightweight and yet sufficiently resilient to return to its original shape after being impacted by heavy equipment. The barrier gate outer frame includes a plurality of flexible plastic tubular frame members which are joined together by frame joint couplers, including one at each corner of the frame. One or more inner flexible plastic tubular frame members extend across the outer frame and are joined thereto by frame joint couplers. A flexible plastic web material is supported in each field between the outer and inner frame members. In a preferred embodiment, all of the outer and inner frame members, and all of the frame joint couplers are formed of PVC plastic. In a preferred embodiment, the barrier gate outer frame is rectangular in shape, and includes two upper horizontal flexible tubular frame members joined by a T frame joint coupler, and similarly two lower horizontal flexible tubular frame members joined by a T frame joint coupler. The frame further includes two left vertical flexible tubular frame members joined by a T frame joint coupler, and similarly two right vertical flexible tubular frame members joined by a T frame joint coupler. The inner frame includes two horizontal and two vertical inner flexible plastic tubular frame members, all of which are joined in the center of the frame by a central X frame joint coupler.