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| + | [[File:20161024 100338 550x550.jpg|thumb|Bioswale, County Court Boulevard, Brampton]] |
| This article is about installations designed to capture and convey surface runoff along a vegetated channel, whilst also promoting infiltration. <br> | | This article is about installations designed to capture and convey surface runoff along a vegetated channel, whilst also promoting infiltration. <br> |
| For underground conveyance which promotes infiltration, see [[Exfiltration trenches]]. | | For underground conveyance which promotes infiltration, see [[Exfiltration trenches]]. |
− | [[File:20161024 100338 550x550.jpg|thumb|Bioswale, County Court Boulevard, Brampton]]
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| {{TOClimit|2}} | | {{TOClimit|2}} |
| ==Overview== | | ==Overview== |
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| '''[[Bioswales]]''' are sometimes referred to as 'dry swales', 'vegetated swales', or 'water quality swales'. This type of BMP is form of [[bioretention]] with a long linear shape (surface area typically >2:1 length:width) and a slope which convey water,<br> | | '''[[Bioswales]]''' are sometimes referred to as 'dry swales', 'vegetated swales', or 'water quality swales'. This type of BMP is form of [[bioretention]] with a long linear shape (surface area typically >2:1 length:width) and a slope which convey water,<br> |
| '''[[Enhanced grass swales]]''' are a lower maintenance alternative, but generally have lower stormwater management potential. The enhancement over a basic grass swale is in the addition of [[check dams]] to slow surface water flow and create small temporary pools of water which can infiltrate the underlying soil.<br> | | '''[[Enhanced grass swales]]''' are a lower maintenance alternative, but generally have lower stormwater management potential. The enhancement over a basic grass swale is in the addition of [[check dams]] to slow surface water flow and create small temporary pools of water which can infiltrate the underlying soil.<br> |
− | '''[[grass swales]]''' are a relatively common landscape feature already and a great opportunity for retrofit, to reduce flow and improve water quality by encouraging settling and infiltration behind a series of check dams. | + | '''Grass swales''' are a relatively common landscape feature already and a great opportunity for retrofit, to reduce flow and improve water quality by encouraging settling and infiltration behind a series of check dams. <br> |
| '''[[Retention swales]]''' can be imagined as linear, sloped [[dry ponds]]. They make a relatively little contribution to water volume and quality control than many other BMPs, but they may feature as part of a site-wide treatment train approach. | | '''[[Retention swales]]''' can be imagined as linear, sloped [[dry ponds]]. They make a relatively little contribution to water volume and quality control than many other BMPs, but they may feature as part of a site-wide treatment train approach. |
− | | + | {{float right|{{#widget:YouTube|id=8b3-a_Na1dE}}}} |
| {{textbox|Swales are an ideal technology for: | | {{textbox|Swales are an ideal technology for: |
| *Sites with long linear landscaped areas, such as parking lots | | *Sites with long linear landscaped areas, such as parking lots |
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| ==Construction== | | ==Construction== |
− | {{:Infiltration:_Construction}}
| + | [[Construction]] |
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| ==Galleries== | | ==Galleries== |
− | ===Basic grass swales=== | + | ===Simple grass swales=== |
| {{:Swales: Gallery}} | | {{:Swales: Gallery}} |
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| ===Bioswales=== | | ===Bioswales=== |
| {{:Bioswales: Gallery}} | | {{:Bioswales: Gallery}} |
| + | ===Check dams=== |
| + | {{:Check dams: Gallery}} |
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| ==See Also== | | ==See Also== |