 The Brooklyn Rapid Transit Company (BRT) gained control of the Nassau Electric in November 1898 and leased it (and the Brooklyn Union Elevated Railroad, operator of the Fifth Avenue Elevated, among other lines) to the Brooklyn Heights Railroad on April 1, 1899.On June 4, 1899, a new switch at Bath Junction was placed in service, and the Park Row-Coney Island cars were rerouted via the Sea Beach Line; West End cars from Downtown Brooklyn continued to use the West End Line through Bath Beach.BRT control paved the way for the line to be connected to the elevated system, and, on December 19, 1900, trolleys between 36th Street and Bath Beach were replaced with elevated trains from Park Row in Lower Manhattan; the line beyond Bath Beach to Coney Island was part of the 86th Street Line.