Inverted Siphon

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inverted siphon

[in′vərd·əd ′sī·fən]
(civil engineering)
A pressure pipeline crossing a depression or passing under a highway; sometimes called a sag line from its U-shape.

Inverted Siphon


a pressured water conduit laid under the bed of a river or channel, along the sides and bottom of a deep valley or ravine, or under roads to pass an intersecting current of water (channel). Inverted siphons are placed in water-supply, sewage, and irrigation systems and in hydroelectric power installations. A distinction is made between single-hole inverted siphons, which consist of a single pipe, and multihole types, with a round or rectilinear cross section. Inverted siphons are made of reinforced concrete (most commonly), wood, and steel.

References in periodicals archive ?
The Highlands Canal System, where work was recently completed at two separate inverted siphon locations, is made up of approximately 900 acres of land, 38 miles of canals, a 500 acre reservoir and a 100 million gallon per day (mgd) pump station on Lake Houston.
Oman has an estimated 3,000 aflaj systems, comprising networks of underground channels, raised aqueducts, inverted siphons and surface channels that distribute water often over rocky terrain.
The project also includes the inspection and cleaning of an additional 6,000 feet of sewer pipelines, the rehabilitation of manholes and the rehabilitation of three inverted siphons located beneath a water inlet.