 Both lines merged with the BMT Culver Line at Ninth Avenue and later the BMT Fifth Avenue Line and BMT Myrtle Avenue Line.After both lines were rebuilt as rapid transit lines of the Brooklyn Rapid Transit Company, the name "Bath Junction" was dropped.A connector was no longer necessary, as the West End Line was able to reach Manhattan on its own, and was not even realistic to plan, as one line dropped into a cut and the other became elevated.