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An aqueduct is a watercourse constructed to carry water from a source to a distribution point far away. In modern engineering, the term aqueduct is used for any system of pipes, ditches, canals, tunnels, and other structures used for this purpose. [1] The term aqueduct also often refers specifically to a bridge carrying an artificial ...
Aqueduct (bridge), a bridge to convey water over an obstacle, such as a ravine or valley; Navigable aqueduct, or water bridge, a structure to carry navigable waterway canals over other rivers, valleys, railways or roads; Aqueduct (water supply), a watercourse constructed to convey water
The word is derived from the Latin aqua ("water") and ducere ("to lead"), [2] therefore meaning "to lead water". A modern version of an aqueduct is a pipeline bridge . They may take the form of tunnels, networks of surface channels and canals, covered clay pipes or monumental bridges.
This is an accepted version of this page This is the latest accepted revision, reviewed on 3 February 2025. Type of aqueduct built in ancient Rome See also: List of aqueducts in the Roman Empire The multiple arches of the Pont du Gard in Roman Gaul (modern-day southern France). The upper tier encloses an aqueduct that carried water to Nimes in Roman times; its lower tier was expanded in the ...
The average gradient between the start and end of the aqueduct is far shallower than was usual for Roman aqueducts – only about a tenth of the average gradient of some of the aqueducts in Rome. [9] Pont du Gard's stone blocks, some of which weigh up to six tons, were precisely cut to fit together without the need for mortar.
A viaduct is a specific type of bridge that consists of a series of arches, piers or columns supporting a long elevated railway or road. Typically a viaduct connects two points of roughly equal elevation, allowing direct overpass across a wide valley, road, river, or other low-lying terrain features and obstacles.
When it was open, the California Aqueduct Bikeway was the longest of the paved paths in the Los Angeles area, at 107 miles (172 km) long from Quail Lake near Gorman in the Sierra Pelona Mountains through the desert to Silverwood Lake in the San Bernardino Mountains. This path was closed in 1988 due to bicyclist safety and liability issues.
The cerebral aqueduct (aqueduct of the midbrain, aqueduct of Sylvius, Sylvian aqueduct, mesencephalic duct) is a small, narrow tube connecting the third and fourth ventricles of the brain. [ 1 ] [ 2 ] The cerebral aqueduct is a midline structure that passes through the midbrain .