Description
The Jamaica Line includes a variety of structures. The original BMT Jamaica Line started from Broadway Ferry, Brooklyn. The line was two tracks, and connected with Marcy Avenue, from the west. This section, which was called the "Broadway Spur", has a short, but easily-seen remnant (about one-half of a block in length, no tracks, just maintenance buildings) west and south of where the line curves toward the Williamsburg Bridge. From Marcy Avenue to a point just before Alabama Avenue the line operates on the structure of old elevated railways, but substantially rebuilt and upgraded to a three-track line around World War I under the Dual Contracts of 1913. From Alabama Avenue to just before the current Cypress Hills station, the Jamaica Line operates on the oldest elevated structure in New York City, a steel-reinforced cast iron line opened in 1893. Interestingly enough, west of Alabama Avenue, a third middle trackway exists and elevates over the other two tracks, ending just west of the Alabama Avenue station. This track was intended to be an express track, but engineering studies completed after the work started indicated that the vibration of trains passing over the stations would be too severe and would literally shake the stations apart.
At Cypress Hills, the line turns northeast onto Jamaica Avenue on what was known as the Jamaica Avenue Line, a Dual Contracts structure. This structure has provisions on its entire length for three tracks, but a center track was never built, with the exception of a layup track at 111th Street and another between 160th Street and 168th Street on the now-demolished original end of the line.
Read more about this topic: BMT Jamaica Line
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