Rain gardens
This article is about planted installations designed to capture surface runoff in an amended soil.
For more highly engineered systems, see Bioretention cells.
Overview[edit]
Rain gardens capture roof, lawn and driveway runoff from low to medium density residential lots. These can be simple gardens constructed by the homeowner as a retrofit, or they can be professionally designed into a residential development.
Rain gardens are ideal for:
- Capturing the flow from disconnected downspouts
- Community design/build projects for raising awareness
The fundamental components of a rain garden are:
- An amended soil mix
- Suitable planting
Additional components may include:
- A splash pad of rocks to prevent the downspout flow from eroding the soil
- An overflow channel to another are of garden
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Disconnected downspout routing water into a rain garden.
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Planning Considerations[edit]
Planning Content
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Bioretention cell capturing and treating runoff from adjacent parking lot at the Kortright Centre, Vaughan.
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Design[edit]
Design Content
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Bioretention cell capturing and treating runoff from adjacent parking lot at the Kortright Centre, Vaughan.
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Performance[edit]
Performance Content
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Bioretention cell capturing and treating runoff from adjacent parking lot at the Kortright Centre, Vaughan.
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Incentives and Credits[edit]
In Ontario
City of Mississauga
The City of Mississauga has a stormwater management credit program which includes RWH as one of their recommended site strategies[1].
LEED BD + C v. 4
SITES v.2
See Also[edit]
External Links[edit]
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