NYC Water Supply: 1917 Kensico Dam and 1910,2005 Bridge over Reservoir

Dam: (Satellite)

Bridge: (Archived Bridge Hunter; 3D Satellite) Technically, the bridge is over Rye Lake.

I've studied the NYC water supply dam of Croton, so it is only fair that I study this dam that is closer to the city.

Guillem Tarrés, Apr 2018

In fact, the narrator on this reel says this is the reservoir that is closest to the NYC.

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Nicholas Minorsky posted
Steam locomotive (on the right of the photo) used to transport quarry stone to Kensico Dam, NY construction site. The stone was used for the downstream face of this reservoir dam.

Via TheHarlemLine
This 1917 dam replaced the original dam built in 1885. Now the 92-mile Catskill Aqueduct feeds water into the reservoir of this dam. "The main building material used in the dam is concrete mixed with large stones, called Cyclopean concrete. The dam face is made of large granite stones from a quarry in nearby Cranberry Lake.Out of the Archives: One of the Board of Water Supply’s major engineering accomplishments was the Kensico Dam in Westchester County. Shown here under construction 112 years ago today, its upstream face was built of pre-cast concrete blocks, a relatively new building material at the time, while the downstream face was concrete below ground level and cut stone blocks above. Work moved incredibly quickly and its reservoir was filled to capacity in 1916, four years ahead of schedule! Built to hold the new supply of Catskill water, it replaced and dwarfed a little dam whose gatehouse is visible here on the left side of the new dam. Now, this architectural and engineering marvel holds water from both the Catskill and Delaware aqueducts, up to 30.6 billion gallons. October 29, 1914.
http://bit.ly/2tKkvDE

Frank Buschini commented on the above post
The whole dam was made of pre-cast concrete blocks above and below ground, the “ cut stone “ was granite and it is used as a veneer covering the face of the dam.

NYC Watershed posted

Underestimated Arsenal posted [The post has a long description.]

Most dams have at least a small river downstream. Looking at a satellite image, this one has a park instead of a river! The dam is over 300' tall and more than 1800' long. The park contains 1400 acres. [OnlyInYourState] Although the developed part is 98 acres and is called the Kensico Dam Plaza. [TheHarlemLine] I guess NYC drinks the entire contents of the river that used to be here. The reservoir is fed mainly by an aqueduct rather than a watershed and that explains why they don't need a spillway to a downstream river.

TheHarlamLine, this page has three more photos of this memorial and many more photos of the park.
"In addition to the dam, the grounds also contains a September 11th Memorial, called The Rising, designed by architect Frederic Schwartz. The memorial lists the names of all one hundred and eleven Westchester County residents that died in the attacks."

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Bridge

 3D Satellite

John Reidy via BridgeHunter

Bridges Now and Then posted
"Out of the Archives: In 1911, construction of the Rye Outlet Bridge in Westchester County, NY was underway. The 5-arch span reinforced bridge was built to carry the highway over the Kensico Reservoir. April 11, 1911." (NYC Water)