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Flood wall and a sliding flood gate in New Orleans French Market (1986)

A flood wall (or floodwall) is a primarily vertical artificial barrier designed to temporarily contain the waters of a river or other waterway which may rise to unusual levels during seasonal or extreme weather events. Flood walls are mainly used on locations where space is scarce, such as cities or where building levees or dikes (dykes) would interfere with other interests, such as existing buildings, historical architecture or commercial use of embankments.

Flood walls are nowadays mainly constructed from pre-fabricated concrete elements. Flood walls often have floodgates which are large openings to provide passage except during periods of flooding, when they are closed. As a flood walls mostly consist of relatively short elements compared to dikes, the connections between the elements are critical to prevent the failure of the flood wall.

The substantial costs of flood walls can be justified by the value of commercial property thus protected from damage caused by flooding.

Flood walls are almost solely used in cities, notably:

In September 2005, following Hurricane Katrina, New Orleans, Louisiana, was substantially flooded after its system of levees and flood walls failed due to soil conditions and poor design.

External links

DeltaWorks.Org Flood Barriers project in the Netherlands

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 [[File:Zruč nad Sázavou, Ostrovský potok, u Vlašimské ulice.jpg|thumb|250px|right|A floodwall at [[Zruč nad Sázavou]], [[Czech Republic]]]]
 [[File:Floodwall in Sunbury, Pennsylvania.JPG|thumb|Floodwall in [[Sunbury, Pennsylvania]]]]
+[[File:NewOrleansFloodGate1.jpg|thumb|Flood wall and a sliding [[flood gate]] in [[New Orleans]] French Market (1986)]]
 <!-- Unsourced image removed: [[Image:NO-09-04-05 0091.jpg|240px|right|thumb|U.S. Army CH-47 Chinook helicopter boosts a sand bag containing 15,000 pounds of sand and gravel en route to a mission to fill one of the breaches in the New Orleans-area levee and flood wall system in the aftermath of Hurricane Katrina on Sunday, September 4, 2005. ''Photo by Alan Dooley, [[U.S. Army Corps of Engineers]]'']] -->
 A '''flood wall''' (or '''floodwall''') is a primarily vertical artificial barrier designed to temporarily contain the waters of a [[river]] or other waterway which may rise to unusual levels during seasonal or [[extreme weather]] events. Flood walls are mainly used on locations where space is scarce, such as cities or where building [[levee|levees or dikes (dykes)]] would interfere with other interests, such as existing buildings, historical architecture or commercial use of embankments.

v t e Coastal management
Management	Accretion Coastal engineering Coastal management Integrated coastal zone management Managed retreat Submersion
Hard engineering	A-Jacks Accropode Akmon Artificial reef Breachway Breakwater Cliff stabilization Dolos Flood wall Floodgate Gabion Groyne Jetty Levee Hard engineering Honeycomb sea wall Hudson's equation KOLOS Mole Pier Revetment Riprap Seawall Tetrapod Training wall Van der Meer formula Wharf Xbloc
Soft engineering	Beach nourishment Beach drainage Dynamic revetment Living shorelines Sand dune stabilization Soft engineering
Related topics	Beach evolution Coastal erosion Geotechnical engineering Land reclamation Longshore transport Modern recession of beaches Stream restoration

Revision as of 09:09, 29 February 2020

See also

External links