The New Croton Aqueduct, built roughly parallel to the Old Croton Aqueduct was constructed to provide a large steady water supply for New York City. The aqueduct opened on July 15, 1890. It runs from the New Croton reservoir in Westchester County to the Jerome Park Reservoir in The Bronx, from which it distributes water to certain areas of the Bronx and Manhattan before emptying into Tunnel 1 of the Catskill/Delaware System. The Croton system is one of three systems that provide water to New York City. The Catskill and Delaware systems are the other two.