Kensico Dam

The Kensico Reservoir is a reservoir located in the towns of Armonk (North Castle) and Valhalla (Mount Pleasant), New York. It was formed by the old earth and gravel dam, built in 1885, which impounded waters from the Bronx and Byram rivers, and supplied about 18 million gallons daily. The construction of a new masonry dam in 1915, replaced the old dam, and expanded the water supply by bringing water from the Catskill Mountains over a distance of more than 100 miles.

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