Rethinking Bioretention Design Concepts
Publication: Low Impact Development: New and Continuing Applications
Abstract
Since its initial development and application in 1993 (Clar, et al., 1993), the Bioretention system also referred to as "rain gardens" has rapidly become one of the most versatile and widely used BMPs throughout the US and many parts of the world. It has recently become identified as a preferred site practice for green building design and LEEDS certification. A recent review of Bioretention design guidance being used throughout the US revealed that with some relatively minor changes, the design concepts contained in the original design manual remain unchanged. This paper provides a critical review of some elements of the original design concepts and introduces new directions for the evolution of this BMP. The design elements examined in this paper include: 1) The allowable ponding depth, 2) The minimum width and length parameters, 3) The depth and type of the soil/filter media, 4) The design of bioretention as an infiltration practice, 5) Plant materials.
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Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Best Management Practices (BMPs)
- Building design
- Buildings
- Business management
- Conceptual design
- Design (by type)
- Engineering fundamentals
- Engineering profession
- Environmental engineering
- Green buildings
- Licensure and certification
- Practice and Profession
- Professional practice
- Retention basins
- Stilling basins
- Stormwater management
- Structural engineering
- Structures (by type)
- Sustainable development
- Water treatment
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