A Balancing Pond is an element of an urban drainage system used to control flooding by temporarily storing flood waters.
Relevance to Sustainable Construction
In open countryside, heavy rainfall soaks into the ground and is released relatively slowly into watercourses. In an urban area, the extent of hard surfaces means that the rainfall is dumped immediately into the drainage system. If left unchecked, this can cause flooding downstream. The function of a balancing lake is to contain this surge and release it slowly. Used with Sustainable Urban Drainage Systems (SUDS), balancing ponds help naturally manage run off and add biodiversity.
Example, Keywords, Themes
Balancing Ponds retain a certain volume of water at all times. This can avoid possibly unsightly exposure of banks of collected sediment and enhance performance in removing nutrients, trace metals, coliforms and organic matter.