Building, has three island platforms, one sideplatform, and four tracks; only the outer tracks and two of the island platforms are in use. The complex contains
levels—the BMT platforms are on the upper level, and the IND platforms are on the lower—an intermediate mezzanine built for the IND platforms provides the
was a two-track through station with sideplatforms and the point where steam railroad trains from the Fulton Street Line turned onto the BMT Brighton Line