Flood regulation
Under flood control refers to state, municipal or private measures that the flood protection act. By means of flood regulations, high water levels caused by heavy rainfall and / or snowmelt , colloquially , water peaks are to be lowered. Typical examples of flood control measures are:
- Dams that buffer large amounts of water and pass it on in a more or less controlled manner
- additional flow stretches for bodies of water that divert flood waters past endangered areas and ensure faster runoff
- the creation of additional floodplain areas , weighing up whether the owners of the flooded areas are entitled to compensation for the reduction in agricultural yield
- Pipework, mostly in smaller rivers , which flow into bodies of water with sufficient absorption capacity
Dykes, on the other hand, protect the dammed areas from flooding, but by narrowing the flow cross-section they also increase the water level of the bodies of water carrying floods. In addition, they prevent a body of water from being able to absorb inflowing water at any point, and promote the formation of pressurized water and precipitation- related standing water on the inland side.