Fourth Avenue Subway in Brooklyn, a Canal Street subway from the Fourth Avenue Subway via the Manhattan Bridge to the Hudson River, and several other lines in Brooklyn. The Brooklyn Rapid Transit Company submitted a proposal to the Commission, dated March 2, 1911, to operate the Tri-borough system (but under Church Street instead of Greenwich Street), as well as a branch along Broadway, Seventh Avenue, and 59th Street from Ninth Street north and east to the Queensboro Bridge; the Canal Street subway was to merge with the Broadway Line instead of continuing to the Hudson River. The city, the BRT, and the Interborough Rapid Transit Company (which operated the first subway and four elevated lines in Manhattan) came to an agreement, and sent a report to the New York City Board of Estimate on June 5, 1911. The line along Broadway to 59th Street was assigned to the BRT, while the IRT obtained the Lexington Avenue line, connecting with its existing route at Grand Central–42nd Street. Construction began on Lexington Avenue on July 31, and on Broadway the next year. The Dual Contracts, two operating contracts between the city and the BMT and IRT, were adopted on March 4, 1913. Originally, the current 49th Street station (which was actually originally planned to be at 47th Street) was going to be an express station, and 57th Street was to be a local station as reflected by original contract drawings. Then in December 1913, both 47th and 57th Streets were both going to be express stations, with no express station at Times Square–42nd Street itself, but rather a local station at 38th Street. Finally, in 1914, it was switched, with 57th Street being the express station, and 49th Street being the local station, with another express station at Times Square–42nd Street. Construction Because of the complicated history, the Broadway Line includes several remnants of earlier plans. The line was built as four tracks south to City Hall, where the local tracks were to terminate on the upper level, and the express tracks were to use the lower level, curving through Vesey Street into Church Street. However, the final plan had the express tracks splitting at Canal Street and passing under the northbound local track to the Manhattan Bridge. The tracks via Canal Street and the Manhattan Bridge were not intended to be connected to the Broadway Line. Instead, they were supposed to