40
edits
Changes
Jump to navigation
Jump to search
Line 10:
Line 10:
Line 30:
Line 33:
;Bioswale:Linear bioretention cell designed to convey, treat and attenuate stormwater runoff. The engineered filter media soil mixture and vegetation slows the runoff water to allow sedimentation, filtration through the root zone, evapotranspiration, and infiltration into the underlying native soil.
Line 67:
Line 68: ;Grass swales:Vegetated, open channels designed to convey, treat and attenuate runoff. Design variations range from simple grass channels, which are designed primarily for conveyance to more complex treatment and volume reduction designs like enhanced grass swales, and dry swales or bioswales.
Line 76:
Line 74:
no edit summary
;Bioretention
;Bioretention
:A stormwater filtration and/or infiltration practice. The practice is a shallow excavated surface depression containing a prepared soil mix, mulch, and planted with specially selected vegetation. The system is engineered to temporarily store runoff in the depression and gradually filter it through the mulch, filter media, and root zone. Pollutants are removed from runoff through filtration in the soil and uptake by plant roots and runoff volumes are reduced through evapotranspiration and infiltration.
:A stormwater filtration and/or infiltration practice. The practice is a shallow excavated surface depression containing a prepared soil mix, mulch, and planted with specially selected vegetation. The system is engineered to temporarily store runoff in the depression and gradually filter it through the mulch, filter media, and root zone. Pollutants are removed from runoff through filtration in the soil and uptake by plant roots and runoff volumes are reduced through evapotranspiration and infiltration.
;Bioswale
:Linear bioretention cell designed to convey, treat and attenuate stormwater runoff. The engineered filter media soil mixture and vegetation slows the runoff water to allow sedimentation, filtration through the root zone, evapotranspiration, and infiltration into the underlying native soil.
;Check dam
;Check dam
;Dry swale
;Dry swale
;Evapotranspiration
;Evapotranspiration
;Fused grid
;Fused grid
:A hybrid neighbourhood and district layout model that combines the geometries of inner city grid road patterns with the loop and cul-de-sac road patterns of conventional suburbs.
:A hybrid neighbourhood and district layout model that combines the geometries of inner city grid road patterns with the loop and cul-de-sac road patterns of conventional suburbs.
;Geotextile
;Geotextile
;Granular
;Granular
:Gravel, or crushed stone of various size gradations (i.e., diameter), used in construction; void forming material used as bedding and runoff storage reservoirs and underdrains in stormwater infiltration practices.
:Gravel, or crushed stone of various size gradations (i.e., diameter), used in construction; void forming material used as bedding and runoff storage reservoirs and underdrains in stormwater infiltration practices.
;Grass swales
:Vegetated, open channels designed to convey, treat and attenuate runoff. Design variations range from simple grass channels, which are designed primarily for conveyance to more complex treatment and volume reduction designs like enhanced grass swales, and dry swales or bioswales.
;Gravel diaphragm
;Gravel diaphragm