The New Croton Dam is a large masonry dam located in Westchester County, New York. Completed in 1906, it was built to create the Croton Reservoir, which supplies drinking water to New York City. The dam stands 297 feet tall and spans 1,600 feet across the Croton River, showcasing impressive engineering from the early 20th century. The dam is part of the New York City water supply system and plays a crucial role in managing water resources. It features a spillway and a series of gates to control water flow, ensuring the reservoir can meet the demands of the city's population while also providing recreational opportunities in the surrounding area.