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Muscoot Reservoir cuts across this 2013 aerial photograph from lower left to center and upper right. At center left is Amawalk Reservoir (which drains into Muscoot Reservoir) at upper right is Lake Mahopac. Mount Kisco, New York is at bottom center and near center right are Katonah, New York and Interstate 684.
|Location||Westchester County, New York|
|Catchment area||76 sq mi (200 km2)|
|Basin countries||United States|
The Muscoot Reservoir is a reservoir in northern Westchester County, New York located directly north of the village of Katonah. Part of the New York City Watershed System, it is 25 miles (40 kilometres) north of the City, which it supplies with drinking water. It was constructed at the beginning of the 19th century by impounding the Muscoot River, a tributary of the Croton River, in turn a tributary of the Hudson River.
The reservoir was once much smaller, but the other side of the original dam was intentionally flooded to make the reservoir bigger, when a new dam was built downstream. The original dam is still standing, and divides the reservoir in two.
During construction, the New York Central Railroad moved Bridge L-158 from the Rondout Creek near Kingston to carry its Mahopac Branch across a section of the reservoir near Goldens Bridge. It remains today even though service on the branch ended in 1960. In 1978 it was listed on the National Register of Historic Places as the only remaining double-intersection Whipple truss railroad bridge in the state.
The reservoir was completed in 1905 and serves as the main collecting point for all the reservoirs in the Croton Watershed (except for the New Croton Reservoir, which later receives its water). It is almost 8 miles (almost 13 km) long, can hold up to 4.9 billion US gallons (19,000,000 m3) of water at full capacity, and has a 76 square mile (121.6 km²) drainage basin.
Water from the Muscoot Reservoir flows down the balance of the Muscoot River, then enters the Croton River to flow into the New Croton Reservoir. From there it enters the New Croton Aqueduct and flows south into the Jerome Park Reservoir in The Bronx. It continues on to Manhattan, where it mixes with water from the Catskill Aqueduct, into Brooklyn, then ends in Staten Island at the aqueduct's termination.
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