Boyds Corner Reservoir

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Boyds Corner Reservoir
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Boyds Corner Reservoir
Location within New York
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Boyds Corner Reservoir
Boyds Corner Reservoir (the United States)
Location Kent, New York
Coordinates 41°27′31″N73°45′04″W / 41.4587°N 73.7511°W / 41.4587; -73.7511
Type reservoir
Primary inflows West Branch of the Croton River
Primary outflows West Branch of the Croton River
Catchment area 22 sq mi (57 km2)
Basin  countriesUnited States

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 (80 kilometers) 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. [lower-alpha 1] and was formed by impounding the middle of the West Branch of the Croton River, submerging the village of Boyds Corner. [1]

Contents

History

Completed in 1872, the Boyds Corner Dam saw the use of concrete in dam construction for the first time since the Ancient Romans.[ citation needed ] It was put into service in 1873, 78 feet (24 m) high, [2] making the Boyds Corner Reservoir the City's second oldest, after the New Croton Reservoir. The construction of the Boyd's Corner Reservoir was overseen by William M. Tweed, known as “Boss” Tweed, Commissioner of the NYC Department of Public Works, who ordered the construction of an earthen embankment to strengthen the structure. This embankment was poorly constructed, seen as unnecessary, and an opportunity for graft. Boss Tweed was convicted of 204 counts of corruption in 1873 and died in prison in 1878. [3] [4] In 1874, according to the Putnam County Courier, Theodore Cole of Coles Mills sued New York City for $10,000 in damages due to the Boyds Corner Reservoir dam causing the stoppage of water from the Croton River to his four mills. [5] Originally constructed as part of the City's Croton Watershed system, Boyds Corner today serves mainly as part of the Catskill/Delaware water supply system. [6]

The Boyds Corner watershed drainage basin is 22 square miles (57 km2) long and a mere 1.5 miles (2.4 km) wide, and includes the headwaters of the West Branch of the Croton River. It spans portions of the Towns of Kent and Putnam Valley in Putnam County, and East Fishkill in Dutchess County.

The reservoir can hold 1.7 billion US gallons (6,400,000 m3). This makes it one of the smaller in New York City's water supply system. Water from Boyds Corner flows into the West Branch of the Croton River, near the defunct Colonial settlement of Coles Mills, then continues southeast to enter the West Branch Reservoir, where it mixes with water carried from the Rondout Reservoir west of the Hudson River by the Delaware Aqueduct.

Water from the West Branch Reservoir then continues via the aqueduct on to the Kensico Reservoir, which also receives a supply from the Catskill system through the Catskill Aqueduct. After settling at Kensico, the water flows through two aqueducts to the Hillview Reservoir in Yonkers, where it enters the City's distribution system.

Any water in excess of New York City's needs at the West Branch Reservoir is diverted over a spillway back into the West Branch of the Croton River, whence it becomes part of the City's Croton Watershed. It is then mixed with water from the Middle Branch of the Croton River at the Croton Falls Reservoir. Flow then briefly returns to the West Branch of the Croton River before reaching a confluence with the Croton River proper. This continues southwest to the New Croton Reservoir. Any water in excess of the City's needs there then goes over the New Croton Dam back into the Croton River, where it carried until discharging into the Hudson River at Croton-on-Hudson, New York.

After the Teton Dam failure on the Snake River in Idaho, all dams in the United States were inspected for weaknesses and deterioration. In the 1980s it was discovered that the hundred-plus year-old Boyds Corner Dam needed to be replaced. In spite of opposition by those who believed the dam was in good condition, it was dismantled and the basin stood empty until the new dam was completed in 1990 and the reservoir refilled to capacity . The reconstruction included the addition of a new spillway with a 6.1m wide flip bucket in the central dam section and the use of post-tensioned anchors to increase dam stability.

Notes

  1. The land areas of the Croton River watershed and the Croton Watershed are the same, but their drainages are not. Numerous small natural lakes and ponds, as well as large Lake Mahopac, are part of the Croton River's watershed but not part of the NYC water supply system. A map of the actual Croton Watershed is found here.

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References

  1. "Boyds Corners". Nyc.gov. Archived from the original on 2016-03-04. Retrieved 2016-04-02.
  2. "Boyds Corner Dam". Findlakes.com. Archived from the original on 2016-03-04. Retrieved 2016-04-02.
  3. Water-Works, The Architecture and Engineering of the New York City Water Supply, Kevin Bone, Editor, p. 67
  4. "Boyd's Corners Dam and Reservoir". 26 April 2011.
  5. Mount Nimham: The Ridge of Patriots, Thomas F. Maxson, p. 88
  6. "Preservation Report". Lehman.cuny.edu. Archived from the original on 2016-03-26. Retrieved 2016-04-02.