Sayville station was originally built by the South Side Railroad of Long Island in December 1868, and was the end of the line until April 1869 when the line was extended to Patchogue. From that point until the early 20th century, the station also served as the local post office. At the time, it contained coal sidings, spurs into lumber yards, a freight house west of Greeley Avenue, a dairy farm, and a horse trolley to the Great South Bay owned by the South Shore Traction Company.[4]
The original station was razed sometime in 1906 and a second depot opened on August 3 that year. When Bayport station was closed by the Long Island Rail Road in 1980, former Bayport commuters opted to use Sayville station. A renovation project in 1998–1999 installed a pedestrian overpass and sheltered high-level platforms.
Station layout
The station has two high-level side platforms each eight cars long. The Montauk Branch has two tracks here, the last such station on the line; all stations from Patchogue east to Montauk have only a single platform, as the double track becomes single track between Sayville and the former Bayport station.
