This is a list of dams and reservoirs in the State of New York.
East Branch Reservoir, is a reservoir in the town of Southeast, New York, near the village of Brewster. Part of the New York City water supply system, it was formed by impounding the East Branch of the Croton River. Forming part of the Croton Watershed, it was placed into service in 1891, and lies some 35 miles (56 km) north of the city, in the southeast corner of Putnam County.
The Cannonsville Reservoir is a reservoir in the New York City water supply system in Delaware County, New York. It was formed by construction of the Cannonsville Dam on its west end, which impounded over half of the West Branch of the Delaware River. Lying on the western part of the Delaware Watershed, it is the westernmost of New York City's reservoirs. It was placed in service in 1964, and is the most recently constructed New York City-owned reservoir.
The Kensico Reservoir is a reservoir spanning the towns of Armonk and Valhalla, New York, located 3 miles (5 km) north of White Plains. It was formed by the original earth and gravel Kensico Dam constructed in 1885, which impounded waters from the Bronx and Byram rivers. In 1917, a new masonry dam was completed, replacing the old dam and expanding the water supply by bringing water from the Catskill Mountains over a distance of more than 100 miles.
The West Branch Reservoir is a reservoir in the New York City water supply system. Formed by impounding the upper reaches of the West Branch of the Croton River, it is located in the Putnam County, New York, towns of Kent, and Carmel, about 50 miles (80 km) north of New York City.
The Boyds Corner Reservoir is a small reservoir in Putnam County, New York. It is in the town of Kent, New York, and is about 50 miles north of New York City. It is the northernmost reservoir in the Croton River watershed, but is not part of the New York City water supply system's Croton Watershed. and was formed by impounding the middle of the West Branch of the Croton River, submerging the village of Boyds Corner.
The Amawalk Reservoir is a small reservoir in the New York City water supply system located in central-northern Westchester County, New York. It is located at the intersection of U.S. Route 202 and New York State Route 35 in the town of Somers, and is over 32 miles north of New York City. Part of the system's Croton Watershed, it was formed by impounding the middle of the Muscoot River, one of the tributaries of the Croton River. This reservoir was put into service in 1897, and was named after the original community of Amawalk, New York, which was inundated by the reservoir and relocated near the dam.
The Bog Brook Reservoir is a 379-acre (153 ha) reservoir in the Croton Watershed in southern New York State, part of the New York City water supply system. It is located in the town of Southeast in Putnam County, approximately 38 miles (61 km) north of New York City. It was formed by the damming of Bog Brook, a small tributary of the East Branch of the Croton River. The reservoir was put into service in 1892, making it one of the older in the system.
The Croton Falls Reservoir is a reservoir in the New York City water supply system in the Putnam County, New York townships of Carmel, and Southeast, roughly 50 miles (80 km) north of New York City. Part of the system's Croton Watershed, it was formed by impounding the West Branch and Middle Branch of the Croton River, tributaries of the Croton River, which flows into the Hudson River.
The Diverting Reservoir is a reservoir in the New York City water supply system in the town of Southeast, New York, in Putnam County immediately south of the village of Brewster, New York. Part of the system's Croton Watershed, it lies about 50 miles (80 km) north of New York City. Construction impounding the East Branch Croton River began early in the 20th century and was completed by 1911.
The Muscoot Reservoir is a reservoir in the New York City water supply system in northern Westchester County, New York, located directly north of the village of Katonah. Part of the system's Croton Watershed, it is 25 miles north of the City.
The Croton River is a river in southern New York with three principal tributaries: the West Branch, Middle Branch, and East Branch. Their waters, all part of the New York City water supply system, join downstream from the Croton Falls Reservoir. Together, their waters and the reservoirs linked to them represent the northern half of the New York City water system's Croton Watershed.
The Kisco River is a creek that runs through the Mount Kisco, New York area. It is formed by the forks of Chappaqua Brook and an unnamed stream. It follows a 3.3-mile (5.3 km) winding course before emptying into the New Croton Reservoir at Lake Road Bridge in the town of New Castle near the hamlet of Stanwood and eventually into the Atlantic Ocean via the Croton River, the Hudson River, and New York Harbor.
Lake Shenorock is a lake located in the hamlet of Shenorock in the town of Somers, New York. The lake is used for fishing and was used for recreational swimming until the Clean Water Act was passed and the lake became a source of drinking water. The Clean Water Act was passed in 1972, recreational swimming ended in 1977. The lake is part of the Croton Reservoir System and is a tributary to the Amawalk Reservoir, which is used as a source of water for New York City residents. There are no major tributaries to the class B lake.
Kirk Lake is a controlled lake in the hamlet of Mahopac in the town of Carmel in Putnam County, New York. It lies due west and sharply below considerably larger Lake Mahopac. It is one of three controlled lakes in the New York City water supply system's Croton Watershed.
[[File:Crotonrivermap.png|thumb|right|Map of the Croton River watershed. Note that this is not identical with the New York City water supply system's "Croton Watershed"{{efn|Numerous small natural lakes and ponds, as well as large Lake Mahopac, are part of the Croton River's watershed but not part of New York City’s supply system. A map of the actual Croton Watershed is found here. ]]
This page is about the Croton River watershed, a hydrological feature. For the component of the New York City water supply system with a similar name, see Croton Watershed
The West Branch Croton River is a tributary of the Croton River in Putnam and Westchester counties in the state of New York. It lies within the Croton River watershed and is part of the New York City water supply system's Croton Watershed.
The Muscoot River is a short tributary of the Croton River in Putnam and Westchester counties in the state of New York. Approximately 6 mi (9.7 km) long and running north-to-south, it lies within the Croton River watershed and is part of the New York City water supply system's Croton Watershed.