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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 Sewerage & Water Board had the responsibility of draining the city along with constructing a modern sewage and tap water system for the city, which, at the time, still relied heavily on cisterns and outhouses. (A different entity, the Orleans Levee Board, was in charge of supervision of the city's levee and floodwall system.)
The breach at the 17th Street Canal Levee, a levee-floodwall combination, was found to be about 300 feet (100 m) long. The Corps began operating on an initial hypothesis that the force of the water overtopped the floodwall and scoured the structure from behind and then moved the levee wall horizontally about 20 feet (6.1 m).
The U.S. levee system is a massive — and, often, not fully understood — piece of infrastructure. What was considered adequate protection when levees were originally built can't withstand wet ...
When Katrina's storm surge arrived, the hurricane protection system, authorized by Congress forty years earlier, was between 60–90% complete. [2] Responsibility for the design and construction of the levee system belongs to the United States Army Corps of Engineers, while responsibility for maintenance belongs to the local levee districts ...
That earthen levee protects the city of 22,500 on its west, south and east sides from the growing Tulare Lake. That is the body of water that periodically reappears whenever huge rain and snow ...
At that time, heavy earth-moving equipment was already at work on a portion of the 14.5-mile levee that stands between the rising water level in the old lakebed and the town of Corcoran and a pair ...
Floodgates, also called stop gates, are adjustable gates used to control water flow in flood barriers, reservoir, river, stream, or levee systems. They may be designed to set spillway crest heights in dams, to adjust flow rates in sluices and canals, or they may be designed to stop water flow entirely as part of a levee or storm surge system.