In 2001, when reconstruction of the Manhattan Bridge north tracks resumed, the B service in Brooklyn was replaced by the new train, which ran as a shuttle not only to 36th Street during nighttime hours, but also to Atlantic Avenue–Pacific Street on weekends. In 2002, reconstruction of Coney Island–Stillwell Avenue resulted in the West End Line being the only line to serve the terminal and the W was extended full-time into Manhattan, using the local Fourth Avenue tracks and Montague Street Tunnel on weekends and late nights hours.