Reservoir 3 is a man-made reservoir located in the northern portion of the city of New Rochelle along the New Rochelle - Eastchester boundary in Westchester County, New York. Constructed in 1908, the reservoir is impounded by the New Rochelle "Reservoir 3 dam" on the Hutchinson River. The dam is of earthen construction, with a height of 30 feet (9.1 m) and a length of 450 feet (140 m). It has an area of about 30 acres (12 ha), and a capacity of about 128 million US gallons (480,000 m3). Maximum discharge is 1,815 cubic feet (51.4 m3) per second. Its capacity is 498 acre-feet (614,000 m3). Normal storage is 220 acre-feet (270,000 m3). It drains an area of 2.85 square miles (7.4 km2). The reservoir is currently owned by the Westchester County Department of Parks and Recreation.