Flood defense system

Flood defense system

The protective embankment, or, in case of minor floods, the summer dike ensures the protection against flood damage.

Geography

Keywords

dyke, dam, defense, flood, floodplain, cross section of a floodplain, raised dam, river bed, geography

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Scenes

Flood defense embankments are built on both sides of rivers. The most important constructions of this type are the flood protection dams (dikes). During floods, the floodplains between the dams are inundated. If needed, the height of the dams can be raised by a temporary construction made from sandbags or wattle filled with earth. Outside the dams, there are flood protected areas, which are normally not threatened by flooding. The water running down the dams is collected by belt canals, which prevent the water from seeping into the flood protected area. Summer dikes are built to control higher water levels and keep the water of the river on the floodplain.

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