What is the purpose of a stormwater management system?

The purpose of a stormwater management system is primarily to manage rainwater runoff and prevent flooding. Stormwater runoff occurs when precipitation from rain or melting snow flows over surfaces and is directed into storm drains and waterways. Without an effective management system, this runoff can lead to flooding, which poses risks to infrastructure, public safety, and natural ecosystems.

A well-designed stormwater management system helps to control the rate and volume of runoff, allowing excess water to be absorbed more effectively, thus reducing the risk of flooding. It may incorporate various techniques such as retention basins, green roofs, permeable pavements, and bioswales. While these systems can also aid in promoting groundwater recharge and improving water quality, their primary function is to manage runoff and mitigate flooding risks.