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− | [[File:Stormwater planter pu.png|thumb|An above ground planter with downspout and overflow illustrated.]]
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| <imagemap> | | <imagemap> |
| Image:Stormwater planter.png|thumb|700 px|This is an image map of a stormwater planter, clicking on components will load the appropriate article. | | Image:Stormwater planter.png|thumb|700 px|This is an image map of a stormwater planter, clicking on components will load the appropriate article. |
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| poly 139 1158 149 1155 151 1303 352 1343 542 1305 541 1165 550 1161 553 1311 354 1355 139 1311 [[Liner]] | | poly 139 1158 149 1155 151 1303 352 1343 542 1305 541 1165 550 1161 553 1311 354 1355 139 1311 [[Liner]] |
| </imagemap> | | </imagemap> |
− | | + | [[File:Stormwater planter pu.png|thumb|An above ground planter with downspout and overflow illustrated.]] |
| Over subsurface infrastructure, soils prone to subsidence, or pollution hotspots, it may be necessary to prevent all [[infiltration]]. These BMPs can also be squeezed into tight urban spaces, adjacent to buildings and within the usual setbacks required for infiltrating facilities. Stormwater planters can also be used as a means of providing building-integrated LID by capturing a portion of the rainwater from the rooftop. | | Over subsurface infrastructure, soils prone to subsidence, or pollution hotspots, it may be necessary to prevent all [[infiltration]]. These BMPs can also be squeezed into tight urban spaces, adjacent to buildings and within the usual setbacks required for infiltrating facilities. Stormwater planters can also be used as a means of providing building-integrated LID by capturing a portion of the rainwater from the rooftop. |
| This type of cell can be constructed above grade in any waterproof and structurally sound container, e.g. in cast concrete or a metal tank. | | This type of cell can be constructed above grade in any waterproof and structurally sound container, e.g. in cast concrete or a metal tank. |
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| ==Overview== | | ==Overview== |
| {{textbox|Stormwater planters are an ideal technology for: | | {{textbox|Stormwater planters are an ideal technology for: |
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| '''The design may benefit from:''' | | '''The design may benefit from:''' |
| *A [[level spreaders| level spreader]] | | *A [[level spreaders| level spreader]] |
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| ==Planning Considerations== | | ==Planning Considerations== |
| + | Stormwater Planters are a type of bioretention practice. Please defer to planning considerations in [[Bioretention]] |
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| ==Design== | | ==Design== |
− | {{:Planters:Sizing}} | + | {{:Planters: Sizing}} |
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| ===Storage media=== | | ===Storage media=== |
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| ===Underdrain=== | | ===Underdrain=== |
− | Stormwater planters differ fundamentally from [[bioretention]] in that the storage function is provided only by the [[water retention capacity]] of the [[filter media]]. As such there is no storage reservoir and the only purpose to the aggregate layer is to drain water to the [[perforated pipe]]. For this, a medium aggregate as described in [[choker layer]] is recommended as it negates the need for a separating layer to the filter media. | + | Stormwater planters differ from full and/or partial infiltration [[bioretention]] practices in that the storage function is provided only by the [[water retention capacity]] of the [[filter media]]. As such, there is no storage reservoir and the only purpose to the aggregate layer is to drain water to the perforated [[pipe]]. For this, a medium aggregate as described in [[choker layer]] is recommended as it negates the need for a separating layer to the filter media. Design details can be found here [[Underdrains#Underdrains for non-exfiltrating practices|Underdrains]] for non-exfiltrationg practices. |
− | [[Underdrains#Underdrains for non-exfiltrating practices|Underdrain]] | |
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| ===Planting=== | | ===Planting=== |
− | Stormwater planters routinely capture only rainwater flowing from adjacent rooftops. This means that [[salt]] may be less of a concern than in [[Bioretention: Parking lots]] or [[Bioretention: Streetscapes]]. | + | *Planters must be designed in a way that insulates the soil through freezing temperatures, or plant species that can survive the winter season in raised planters must be used. |
− | The [[plant lists]] are still a good place to start when selecting species for LID in Ontario. | + | *Stormwater planters routinely capture only rainwater flowing from adjacent rooftops. This means that [[salt]] may be less of a concern than in [[Bioretention: Parking lots]] or [[Bioretention: Streetscapes]]. |
| + | *The [[plant lists]] are still a good place to start when selecting species for LID in Ontario. |
| + | *A more formal aesthetic for the planting design is appropriate for the urban hardscape setting. |
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| ===Liners=== | | ===Liners=== |
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| ==Performance== | | ==Performance== |
| {{:lit review}} | | {{:lit review}} |
− | Water quality <ref>Macnamara, J.; Derry, C. Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters. Water 2017, 9, 907.;doi:10.3390/w9110907</ref> | + | ===Hydrology=== |
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| + | <ref>Davis, Allen P., Robert G. Traver, William F. Hunt, Ryan Lee, Robert A. Brown, and Jennifer M. Olszewski. “Hydrologic Performance of Bioretention Storm-Water Control Measures.” Journal of Hydrologic Engineering 17, no. 5 (May 2012): 604–14. doi:10.1061/(ASCE)HE.1943-5584.0000467.</ref> |
| + | <ref>Yeakley, J.A., and K.K. Norton. “Performance Assessment of Three Types of Rainwater Detention Structures for an Urban Development in Wilsonville, Oregon, USA,” 70. Portland, 2009.</ref> |
| + | |
| + | ===Water quality=== |
| + | <ref>Macnamara, J.; Derry, C. Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters. Water 2017, 9, 907.;doi:10.3390/w9110907</ref> |
| <ref>Lucke, T., & Nichols, P. W. B. (2015). The pollution removal and stormwater reduction performance of street-side bioretention basins after ten years in operation. Science of The Total Environment, 536, 784–792. https://doi.org/10.1016/J.SCITOTENV.2015.07.142</ref> | | <ref>Lucke, T., & Nichols, P. W. B. (2015). The pollution removal and stormwater reduction performance of street-side bioretention basins after ten years in operation. Science of The Total Environment, 536, 784–792. https://doi.org/10.1016/J.SCITOTENV.2015.07.142</ref> |
| <ref>Macnamara, J.; Derry, C. Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters. Water 2017, 9, 907. doi:10.3390/w9110907</ref> | | <ref>Macnamara, J.; Derry, C. Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters. Water 2017, 9, 907. doi:10.3390/w9110907</ref> |