Tool risk reduction measures


Rain / stormwater gardens, bioretention cells-image

Rain / stormwater gardens, bioretention cells

  • Description
  • Fields of action
  • Synergies
  • Good practice examples
  • References

Rain gardens are small-scale vegetated gardens used for storage and infiltration. They are typically applied at a property level and close to buildings, for example to capture and infiltrate roof drainage. They use a range of components, typically incorporated into the garden landscape design as appropriate. Under the vegetation layer is a filter bed substrate located for absoption of infiltating water.

Fields of action Buildings,Settlement areas
Additionally to flood risk reduction by slowing and storing surface runoff, the measure has medium or high possible benefits for the following biophysical impacts and ecosystem services: Increase evapotranspiration; Increase infiltration and/or groundwater recharge; Create terrestrial habitats; Biodiversity preservation; Climate change adaptation and mitigation; Filtration of pollutants; Recreational opportunities; Aesthetic/cultural value; Intercept pollution pathways; Reduce erosion and/or sediment delivery; Reduce peak temperature

Check out the RAINMAN good practice examples:

no good practice example available



Sabine Scharfe, Saxon State Office for Environment, Agriculture and Geology