levee

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levee

(lĕv`ē) [Fr.,=raised], embankment built along a river to prevent flooding by high water. Levees are the oldest and the most extensively used method of floodflood,
inundation of land by the rise and overflow of a body of water. Floods occur most commonly when water from heavy rainfall, from melting ice and snow, or from a combination of these exceeds the carrying capacity of the river system, lake, or the like into which it runs.
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 control. They are constructed by piling earth on a surface that has been cleared of vegetation and leveled. From a broad base the levee narrows to a flat crown, on which sandbags or some other temporary protection may be placed to contain unusually high waters. Levee surfaces are commonly protected from erosion by vegetation, notably Bermuda grass. A banquette, or low terrace of earth, is usually added on the land side of high levees to prevent loss of material from the slope through rain erosion. On the river side, plantings of willows, weighted brush matting, or concrete revetments protect those sections of levee that are exposed to strong waves or currents, while ditches or drainage tiles keep the foundation from becoming waterlogged. Levee systems require careful planning, with sections set back from the river to form a wider channel and with flood valley basins divided by cross levees to prevent inundation of large areas by a single break. The most extensive levee systems in the United States are along the Mississippi and Sacramento rivers and their tributaries. The dikes of Holland are a form of levee, and levee-type embankments are used along the Danube, Vistula, Po, and other European rivers.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Levee

 

a hydraulic regulating structure, usually a low earthen dam, designed to protect riparian land from inundation during seasonal or flash flooding of rivers. Levees are built chiefly on the floodplains of rivers. They receive the pressure of the water only periodically, when the level rises above the banks.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

levee

[′lev·ē]
(civil engineering)
A dike for confining a stream.
A pier along a river.
(geology)
An embankment bordering one or both sides of a sea channel or the low-gradient seaward part of a canyon or valley.
A low ridge sometimes deposited by a stream on its sides.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

levee

1 US
an embankment alongside a river, produced naturally by sedimentation or constructed by man to prevent flooding

levee

2
1. a formal reception held by a sovereign just after rising from bed
2. (in Britain) a public court reception for men, held in the early afternoon
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
From a manager's perspective this was the worst-case scenario, so why not simply jump in and get on with shoring up the floodbanks? The Glen is a Site of Special Scientific Interest (SSSI), meaning works in the river are strictly controlled by Natural England.
The Till Project's first major scheme was on three farms in the Fenton Floodplains; a system of more than 22km of floodbanks that have restricted the natural floodplain of the River Till in this area of low lying fertile farmland for the past 60 years.
The land next to the defence and floodbank has been landscaped, and the children, from Selby Cottage Childcare Centre also helped sow seeds and plant bulbs to establish the area.
Once the ditcher has finished its task, the final section of floodbank will be breached, and work will start on controlling water levels across 10 hectares of grazing pasture.
Land next to the defence and floodbank is being landscaped.
The Agency has built a 230 metre floodbank and 50 metres of floodwall.
On the Northumberland coast it costs an estimated pounds 500,000 to carry out major repairs on a stretch of floodbank.