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The side of a levee in Sacramento, California. A levee (/ ˈ l ɛ v i / or / ˈ l ɛ v eɪ /), [a] [1] dike (American English), dyke (British English; see spelling differences), embankment, floodbank, or stop bank is an elevated ridge, natural or artificial, alongside the banks of a river, often intended to protect against flooding of the area adjoining the river.
The levee (from the French word lever, meaning "getting up" or "rising") [1] was traditionally a daily moment of intimacy and accessibility to a monarch or leader, as he got up in the morning.
Today, levées are the receptions (usually, but not necessarily, on New Year's Day) held by the governor-general, the lieutenant governors of the provinces, the military and others, to mark the start of another year and to provide an opportunity for the public to pay their respects. Most levées may be attended by any citizen, including children.
What are the differences between dams, dikes and levees? Let's find out. These structures share a similar function, to help prevent flooding in the region they're built in. But they also serve ...
Natural levees are sloped deposits which form on the banks of channels during flooding events, serving as barriers to future floods. [4] The slope of a levee is primarily a function of its grain size. [4] Levees tend to be steeper when they first form and are close to the channel, then gradually level out as they grow and their grain size ...
Higher rates were found on the levees (4 kg/m 2 or more) and on low-lying areas (1.6 kg/m 2). [8] Sedimentation from the overbank flow is concentrated on natural levees, crevasse splays, and in wetlands and shallow lakes of flood basins. Natural levees are ridges along river banks that form from rapid deposition from the overbank flow.
Construction and elaboration of the levee system was critical to the state's ability to cultivate its commodity crops of cotton and sugar cane. Enslaved Africans built the first levees under planter direction. Later levees were expanded, heightened and added to mostly by Irish immigrant laborers, whom contractors hired when doing work for the ...
Similarly, the fallacy has scant explanation as to why deposition occurs at a stream bend, and little or none occurs where the stream is following a straight course, with exception of a steep slope (river gradient) where the river has formed a natural cut or waterfall and may then deposit some of its load at the point of meeting a less steep ...