the Manhattan Bridge into Brooklyn, and then along the Brighton Line to Stillwell Avenue (the yellow D). Service to Grand Street was replaced by the S shuttle, which ran via the Sixth Avenue local to 57th Street–Sixth Avenue. At this time, the local tracks on the BMT Brighton Line also underwent reconstruction, necessitating the suspension of express service. As a substitute, the D and Q ran skip-stop service between Newkirk Avenue and Sheepshead Bay on weekdays. D trains served Neck Road, Avenue M and Avenue H; the Q skipped those stops, serving Avenue U and Avenue J, while both trains served Kings Highway. The first skip-stop train left Brighton Beach at about 6:30 a.m. while the last one left 57th Street–Seventh Avenue at about 7:30 p.m. On weekday evenings, between 8 p.m. and 1 a.m., D trains made all local stops, except Parkside Avenue and Beverley Road where service was only available in one direction. During late nights and weekends, D trains ran express between Prospect Park and Kings Highway depending on which tracks were being worked on. By 1987, as reconstruction on the Brighton Line progressed, the weekday skip-stop pattern expanded to Prospect Park, with D trains serving Beverley Road while Q trains served Cortelyou Road and Parkside Avenue, with Church Avenue as a mutual station. On December 11, 1988, the north tracks of the Manhattan Bridge reopened and the two sections of the D joined together running via Sixth Avenue Express. The D now ran as the full-time Brighton Local to Stillwell Avenue. From April 30 to November 12, 1995, the Bridge's north tracks closed during middays and weekends and during these hours, D service was cut south of 34th Street-Herald Square. In its place, the Q ran local in Brooklyn to Stillwell Avenue. On July 22, 2001, the north tracks were closed at all times and the southern (Broadway Line) tracks reopened. D service was again cut below 34th Street–Herald Square. In Brooklyn, D service was replaced by local service. After September 11, 2001, service was suspended. On weekends, the D ran local on Central Park West north of 59th Street to fill in the gap in service caused by the suspension until September 21. On February 22, 2004, full service on the Manhattan Bridge was restored and D trains were extended via the north tracks of the bridge to Brooklyn, replacing the as the Fourth Avenue