143rd Street was a station on the demolished IRT Third Avenue Line

IRT Third Avenue Line

The IRT Third Avenue Line, commonly known as the Third Avenue El, was an elevated railway in Manhattan and the Bronx, New York City. Originally operated by an independent railway company, it was acquired by the Interborough Rapid Transit Company and eventually became part of the New York subway...

. This station was also served by trains of the IRT Second Avenue Line

IRT Second Avenue Line

The IRT Second Avenue Line, also known as the Second Avenue El, was an elevated railway in Manhattan, New York City, United States, operated by the Interborough Rapid Transit Company until city takeover in 1940...

 until June 11, 1940. The station was originally opened on May 23, 1886. It had two tracks and one island platform

Island platform

An island platform is a station layout arrangement where a single platform is positioned between two tracks within a railway station, tram stop or transitway interchange...

. The next stop to the north was either 149th Street

149th Street (IRT Third Avenue Line)

149th Street was a station on the demolished IRT Third Avenue Line. The station was originally opened on June 16, 1887. It was built three tracks and two island platforms. The next stop to the north was 156th Street. The next stop to the south was 143rd Street...

 or Jackson Avenue

Jackson Avenue (IRT White Plains Road Line)

Jackson Avenue is a local station on the IRT White Plains Road Line of the New York City Subway. Located at the intersection of Jackson and Westchester Avenues in Melrose, Bronx, it is served by the 2 train at all times, and the 5 train at all times except late nights and rush hours in peak...

. The next stop to the south was 138th Street

138th Street (IRT Third Avenue Line)

138th Street was a station on the demolished IRT Third Avenue Line. It had two tracks and one island platform. It was also served by trains of the IRT Second Avenue Line until June 11, 1940. A paid transfer was available to IRT Pelham Line trains at the underground Third Avenue – 138th Street...

for all trains. This station closed on May 12, 1955.