The Shandaken Tunnel is an
aqueduct in Eastern
New York State
New York, also called New York State, is a state in the northeastern United States. Bordered by New England to the east, Canada to the north, and Pennsylvania and New Jersey to the south, its territory extends into both the Atlantic Ocean and ...
, part of the
New York City water supply system. It was constructed between 1916 and 1924.
The tunnel starts in
Gilboa, New York at the
Schoharie Reservoir, which is in the counties of
Schoharie,
Delaware
Delaware ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic and South Atlantic states, South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey ...
, and
Greene. The water flows south towards the
Esopus Creek in
Ulster County. It finally empties into a man-made pool in
Allaben, New York, within the
Town of Shandaken, and enters Esopus Creek there.
The tunnel is over 18 miles (29 km) in length, and carries water through Greene County and Ulster County. Water flows through the tunnel by gravity; it slopes at a rate of . It is high, and wide. There are seven shafts along the tunnel, serving to aerate the water and provide an outlet for dissolved impurities to escape as gasses.
References
External links
video of a reservoir and the Shandaken Tunnel, 1920s
Water tunnels in the United States
Tunnels in New York (state)
Water infrastructure of New York City
Catskill/Delaware watersheds
Transportation buildings and structures in Ulster County, New York
Transportation buildings and structures in Greene County, New York
Tunnels completed in 1924
{{US-tunnel-stub