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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
At the Los Coyotes project, the Insitutube conformed to the horizontal curves and the inverted siphon with relative ease.
For example, the existing collection system includes four newly installed inverted siphons, which are located under the river and play an important role in conveying west side flows to the east side where the sewage treatment plant is located.
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.
The BFID also has several inverted siphons (that is, a pipe for transporting water through a low spot, resembling the P-trap under your kitchen sink) to help transfer water across the natural drainage valleys, which lie perpendicular to the canals.
Wood stave flume trestles were replaced with inverted siphons. The large inverted siphons are used to convey water being carried in canals or flumes across valleys for irrigation.