page_title: Flood barrier
section_title: New Orleans
hierarchical_section_title: Flood barrier / Flood Barriers Around the World / New Orleans
caption_attribution_description: Deutsch: Eidersperrwerk Dansk: Ejderdæmningen
context_page_description: A flood barrier, surge barrier or storm surge barrier is a specific type of floodgate, designed to prevent a storm surge or spring tide from flooding the protected area behind the barrier. A surge barrier is almost always part of a larger flood protection system consisting of floodwalls, levees, and other constructions and natural geographical features.
  Flood barrier may also refer to barriers placed around or at individual buildings to keep floodwaters from entering that building.
context_section_description: In 2007 the United States Army Corps of Engineers started construction of an ambitious project that aimed to prevent storm surges from flooding the city by 2011. The IHNC Lake Borgne Surge Barrier on the confluence of these waterways is the largest in the United States. It protects  the city from the Gulf of Mexico  from flooding the area. The new Seabrook floodgate prevents a storm surge from entering from Lake Ponchartrain.
  The GIWW West Closure Complex closes the Gulf Intracoastal Waterway to protect the west side of the city. This complex is unique in that it contains the world's largest pumping station, necessary to pump out rainwater that is discharged in the protected side of the canal during a hurricane.
caption: Eider Barrage, landward side, open
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