The Sedgwick Avenue station was an elevated, ground level and underground station on the Bronx extension of the IRT Ninth Avenue Line in Highbridge, Bronx, New York City.

The station was built to connect to the New York & Putnam Railroad (in later decades, the 'Putnam Division') passenger trains that terminated there instead of the former 155th Street terminal and New York Central Railroad Hudson Division trains that stopped at the new (1918) platforms at this location.

[2] The station was built extending from the tunnel entrance to Jerome Avenue on the side of a cliff on a steel structure spanning the tracks of Metro-North's Hudson Line that connected to the existing Putnam Bridge, which had been built for the New York City and Northern Railroad.

The east end of the concrete platforms extended into the tunnel for about a car length.

[3] The station site, in 2010, has ruins of the platforms and the track-bed into the tunnel entrance on Sedgwick Avenue.