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Bioretention: Sizing
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Revision as of 15:05, 4 May 2020
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4 years ago
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Line 27:
Line 27:
| [[Bioretention: Filter media|Filter media]] (''d<sub>m</sub>'')
| [[Bioretention: Filter media|Filter media]] (''d<sub>m</sub>'')
| colspan="2" |
| colspan="2" |
−
* 300 mm to support turf grass
(
and accept only
rainwater/
roof runoff
)
+
* 300 mm to support turf grass and accept only roof runoff
−
* 600 mm to support shrubs, flowering [[perennials]] and deeply rooting decorative [[grasses]]
+
* 600 mm to support shrubs, flowering [[perennials]] and deeply rooting decorative [[grasses]]
and accept both roof and pavement runoff
−
* 1000 mm to support [[trees]]
+
* 1000 mm to support [[trees]]
and accept both roof and pavement runoff
|
|
* 0.4 for sandier Blend A (drainage rate priority)
* 0.4 for sandier Blend A (drainage rate priority)
Dean Young
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