New Croton Dam

About

The New Croton Dam is a masonry gravity dam forming the New Croton Reservoir, both parts of the New York City water supply system. It stretches across the Croton River near Croton-on-Hudson, New York, about 22 miles (35 km) north of New York City.

Construction began in 1892 and was completed in 1906. Designed by Alphonse Fteley (1837–1903), the masonry dam is 266 feet (81 m) broad at its base and 297 feet (91 m) high from base to crest. At the time of its completion, it was the tallest dam in the world. It impounds up to 19 billion US gallons (72,000,000 m3) of water, a small fraction of the New York City water system's total storage capacity of 580 billion US gallons (2.2×109 m3).