78
edits
Changes
Jump to navigation
Jump to search
mLine 55:
Line 55:
→Design
<h3>Submissions</h3>
<h3>Submissions</h3>
{{:Bioretention: Drawings}}
{{:Bioretention: Drawings}}
==Plant Selection==
#Exposure to roadway or parking lot runoff
*Select salt tolerant grasses, other herbaceous material and shrubs.
*These can take on several forms, including parking lot islands, traffic islands, roundabouts, or cul-de-sacs and are often used as snow storage locations.
#No exposure to roadway or parking lot runoff
*Practices allow for a greater range of species selection.
*These receive runoff from rooftops or areas that use no deicing salt and have low pollutant exposure, such as courtyard bioretention.
Other selection factors:
*Most bioretention cells will be situated to receive full sun exposure. The ‘Exposure’ column in the master plant list identifies the sun exposure condition for each species.
*Facilities with a deeper media bed (greater than 1 m) provide the opportunity for a wider range of plant species (including trees).
*The inclusion of vegetation with a variety of moisture tolerances ensures that the bioretention cell will adapt to a variety of weather conditions.
*Proper spacing must be provided for above-ground and below-ground utilities, and adjacent infrastructure.
See [[Plant Standards]] for specific plant species and sizes.
==Construction==
==Construction==