Flood height

For areas that can be flooded without causing damage, the flood height hü is influenced by the retention volume VRück, by the area and, in the case of sloping areas, by the slope of the terrain.

Symbol or abbreviation:

hü

Usual unit:

m³

Table 1. Calculation of the flood height
FormulaExplanation
Calculation of the flood height on a flat surface:
  • hüFlood height in cm
  • VRück: Retention volume in m³
  • AFaG: Available area that can be flooded without damage in m²
Calculation of the flood height on a sloping surface:
  • hüFlood height in cm
  • VRück: Retention volume in m³
  • J: Slope of terrain in cm/m
  • LRück:Length of the symmetrically inclined area that can be flooded without damage in m