Attenuation
Attenuation refers to the storing of water to reduce the peak discharge of a flow event, effectively managing the volume of water released into drainage systems or watercourses. Review LLFA guidance to understand local discharge requirements, and consult the national standards for sustainable drainage systems for attenuation design requirements. See how attenuation fits within your overall drainage strategy.
Case Example
A housing estate might include an underground “attenuation tank” that catches heavy rainfall and releases it into the local sewer or river at a manageable rate to prevent downstream flooding.
Optimise your drainage strategy. Rida Reports designs attenuation solutions as part of your FRA.