34th Street was a station on the demolished IRT Ninth Avenue Line

IRT Ninth Avenue Line

The IRT Ninth Avenue Line, often called the Ninth Avenue El, was the first elevated railway in New York City. It opened in 1868 as the West Side and Yonkers Patent Railway, a cable-hauled line. It ceased operation in 1940....

. It had two levels. The lower level was built first and had two tracks and two side platforms. The upper level was built as part of the Dual Contracts and had one track and two side platforms over the lower level local tracks. It closed on July 11, 1940. The next southbound local stop was 30th Street

30th Street (IRT Ninth Avenue Line)

30th Street was a station on the demolished IRT Ninth Avenue Line. It had two levels. The lower level was built first and had two tracks and two side platforms. The upper level was built as part of the Dual Contracts and had one track that served express trains that bypassed the station. It closed...

. The next southbound express stop was 14th Street

14th Street (IRT Ninth Avenue Line)

14th Street was a station on the demolished IRT Ninth Avenue Line, an elevated railway in New York City. It had two levels. The lower level was built first and had two tracks and two side platforms. The upper level was built as part of the Dual Contracts and had one track and two side platforms...

. The next northbound local stop was 42nd Street

42nd Street (IRT Ninth Avenue Line)

42nd Street was a station on the demolished IRT Ninth Avenue Line. It had two levels. On the lower level, the local trains stopped, on two tracks serving two side platforms. The upper level was built as part of the Dual Contracts and had one track which carried express trains bypassing the station....

. The next northbound express stop was 66th Street

66th Street (IRT Ninth Avenue Line)

66th Street was a station on the demolished IRT Ninth Avenue Line. It had two levels. The lower level was built first and had two tracks and two side platforms. The upper level was built as part of the Dual Contracts and had two track and two side platforms over the lower level local tracks. The...

. This station also serviced Penn Station

Pennsylvania Station (New York City)

Pennsylvania Station—commonly known as Penn Station—is the major intercity train station and a major commuter rail hub in New York City. It is one of the busiest rail stations in the world, and a hub for inbound and outbound railroad traffic in New York City. The New York City Subway system also...

 and was west of the IRT and IND subway stations at Penn Station.