Central Park Reservoir ca. 1931

Built between 1858 and 1862, the 106-acre reservoir is 40 feet deep and holds over a billion gallons of water. Once a critical part of the city’s fresh water system, it received water from the Croton Aqueduct and distributed it throughout Manhattan. The reservoir was decommissioned in 1993, deemed obsolete due to the new water main under 79th Street that connected with the Third Water Tunnel, and because of growing concerns about contamination. In 1994, the reservoir was renamed for Jacqueline Kennedy Onassis in recognition of her contributions to the New York City, and because she enjoyed jogging along the 1.58 mile running track that surrounds it. In 2003, an unsightly seven-foot chain link fence was replaced by a four foot tall steel fence with cast-iron ornamentation, based on the design of the fence that was installed when the reservoir was completed in 1862.