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→Finishing Grades: Inlet, Outlet, Biomedia, Plants (SPC)
'''Mulch Placement'''<br>
'''Mulch Placement'''<br>
Wood mulch provides numerous functions to a bioretention practice including reducing soil erosion, filtration, protecting underlying soils from compaction, retaining moisture, and minimizing volunteer weed establishment. Communicate to contractor how to install and the mulch type in the plans and or specifications with notes, details, spot elevations, and other special features needed as per designed.
Equipment recommended for this task can be:
*Automated: Mulch blowers.
*Manual: Shovels, buckets, level rakes.<br>
<gallery mode="packed" widths=350px heights=350px>
IMG 0098-1.jpg|Insert caption
ERI 2.jpg|Insert caption
Spot8 p2 20190820.JPG|Insert caption
</gallery>
[[Category:Gallery]]
During installation:<br>
*Ensure that mulch depth should be no greater than 75 mm to maintain oxygen supply to underlying soils.
*Ensure that the top of the mulch meets the finish elevation as per design.
'''Stabilizing Contributing Drainage Area - Planting Adjacent Vegetation'''<br>
'''Stabilizing Contributing Drainage Area - Planting Adjacent Vegetation'''<br>
[[File:IMG 0852-1.JPG|150px|thumb|right|Natural lawn grass installed to stabilize the contributing drainage area at the Glendale P.S. rain garden in Brampton, Ontario.]]
Similar to the plant material verification and installation task shown above, any planting required to stabilize the contributing drainage area will need to meet the specifications and considerations shown above.<br>
Similar to the plant material verification and installation task shown above, any planting required to stabilize the contributing drainage area will need to meet the specifications and considerations shown above.<br>