The Dual Contracts, which were signed on March 19, 1913, were contracts for the construction, rehabilitation, and operation of rapid transit lines in the City of New York. The contracts were "dual" in that they were signed between the City and two separate private companies (the Interborough Rapid Transit Company and the Brooklyn Rapid Transit Company), all working together to make the construction of the Dual Contracts possible. The Dual Contracts promised the construction of several lines in the Bronx. As part of Contract 3, the IRT agreed to extend the existing West Farms Division from 179th Street to 241st Street as an elevated line along White Plains Road.