36th Street (BMT Fourth Avenue Line) - Proposed Subway Under 40th Street

Proposed Subway Under 40th Street

There are three abandoned trackways south of 36th Street station. One trackway merges with the southbound local track, and the other two trackways are south of the tracks that ramp up to the BMT West End Line. The triple trackway ramps down to a lower level, under the mainline tracks, and curves slightly east before ending. On the main track level, a bellmouth going east is visible from a Manhattan-bound local train, just south of this station. When the subway was planned as part of the Triborough System, use of the South Brooklyn cut was not anticipated, and instead a four-track subway was to be built in 40th Street to reach the equivalent of the Culver and West End lines. The unused junction is to the east side of Fourth Avenue. There was a mezzanine somewhere south of the present station which was "stranded" when the present ramps from the West End Line were built and the station was extended northward.