Using Low Impact Development Methods to Maintain Natural Site Hydrology

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by F. X. Browne, F. X. Browne, Inc., P. O. Box 401, Lansdale, PA 19446,

Document Type: Proceeding Paper

Part of: World Water & Environmental Resources Congress 2003:

Abstract: Low impact development methods can be used in conjunction with conventional Best Management Practices (BMPs) to maintain the natural hydrology of a site. The use of low impact development methods to maintain natural site hydrology requires a new approach to stormwater management. It requires the use of innovative design concepts, and it requires an iterative approach to designing a site development. The goal of low impact development is to mimic pre-development hydrological conditions such as peak flow, time of concentration, and runoff volume. It differs significantly from traditional development approaches which only control the peak runoff flow. Low impact development can reduce the amount of nonpoint source pollution caused by stormwater runoff and erosion from a developed site, and from streambank erosion.

Subject Headings: Sustainable development | Hydrology | Runoff | Management methods | Best Management Practice | Nonpoint pollution | Peak flow | Pennsylvania | North America | United States

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