Bioretention Systems - Technical Information

Increasing storage in bioretention systems - hydraulic benefits

A Ridgidrain drainage system installed within a drainage layer below the bioretention system can allow simple integration into the drainage system. Inclusion of a perforated pipe within the granular drainage material to act as an underdrain can assist in the draining of bioretention systems. 

Attenuation storage capacity can be increased within the system by providing a thicker drainage layer, or by introducing proprietry surface water storage systems within the layer, as a replacement to the granular material.

 

Increasing storage with geocellular components - hydraulic benefits

Consideration may also be given to increasing the potential attenuation storage provided within the granular drainage material achieved through the introduction of geocellular units from our Polystorm or Permavoid product ranges.