Low Impact Development


Conventional stormwater control focuses on managing peak flows by relying on large, centralized stormwater collection systems. Low impact development (LID), on the other hand, is a site planning approach designed to reduce stormwater discharge by using multiple, small-scale stormwater practices across a site that slow runoff and allow for infiltration and evapotranspiration. LID manages runoff volume and water quality by simulating the natural hydrologic functions of the landscape, which improves the quality of stormwater runoff to our streams and waterways. With efficient site planning and less infrastructure, the cost of low impact development is often less than the cost of conventional development.

Below, please find more detailed information about LID. The column on the left addresses selected individual LID techniques. The column on the right offers tools and design and construction guidance for LID.