Riverside Park is a scenic waterfront public park in the Upper West Side, Morningside Heights, and Hamilton Heights neighborhoods of the borough of Manhattan in New York City. The park consists of a strip of land with a width of between situated between the Hudson River/Henry Hudson Parkway and the serpentine Riverside Drive. Riverside Park was established by land condemnation in 1872 and was developed concurrently with Riverside Drive. Originally running between 72nd and 125th Streets, it was extended northward in the first decade of the 20th century. When the park was first laid out, access to the river was blocked by the right-of-way of the New York Central Railroad's West Side Line. In the 1930s, under parks commissioner Robert Moses's West Side improvement project, the railroad track was covered over with an esplanade and several recreational facilities. Very few modifications were made to the park until the 1980s, when it was renovated and extended southward as part of the Riverside South development. Riverside Park is part of the Manhattan Waterfront Greenway, a pedestrian and bike route around Manhattan's waterfront. The park is operated and maintained by the New York City Department of Parks and Recreation, though its operating activities are supported by the Riverside Park Conservancy. It is both on the National Register of Historic Places and a New York City scenic landmark.