A sustainable drainage feature is any storm water management structure that reduces the negative impact of change on the existing drainage system. This can also be known as a Best Management Practice (BMP), Low Impact Development (LID) feature, or Sustainable Urban Drainage (SUD). The objective of these features is to maintain the same runoff characteristics on a site that existed prior to development or change. With climate and environmental changes, the need to include sustainable drainage features into development becomes even more important.
Many sustainable drainage features are generic and can be implemented easily on any lot. Homeowners and developers can improve sustainability by providing trees and increasing the depth of absorbent topsoil on lots.
Sustainable drainage features can be implemented at the individual lot level, local community level, city wide, and regionally.
Common sustainable drainage features include:
Sustainable drainage features provide many benefits such as providing water quality treatment, reducing channel erosion, controlling flooding by reducing peak flow and flow volume, and recharging the groundwater.
Detailed information on sustainable drainage features can be found in the City of Surrey, and at the following websites:
Other Associations Involved in Sustainability Policy and Practice