Difference between revisions of "LID opportunities in park lands"

Latest revision as of 18:16, 15 March 2019

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LID opportunities on public land

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-'''<h3>LID opportunities in parks</h3>'''
+#REDIRECT [[LID opportunities on public land]]
-Parks range from simple parcels of municipal property to
-complex outdoor recreational facilities that include parking,
-sidewalks, trails, sports fields, field houses, operations
-facilities, and washrooms. Each distinct area of your site can
-be a source for runoff (referred to as a ‘source area’). These
-areas should be targeted when introducing LID in your park.
-'''<h4>Targeting hard surfaces</h4>'''
-Hard surfaces like parking lots and internal driveways are the
-most obvious areas to target for both stormwater quality and
-water balance improvements. These features produce more
-runoff than any other area on your site. Water quality of runoff
-from parking lots and driveways is typically more polluted
-than other source areas. Common water quality concerns
-include sand and salt from winter de-icing operations, and
-hydrocarbons (gasoline) and metals from vehicle breakdowns
-Runoff from vegetated areas of parks will be relatively
-clean and more closely match the natural water balance.
-On municipal park properties, hard surfaces are usually
-located adjacent to pervious areas such as lawns, gardens or naturalized areas. [[File:Example.jpg|thumb|upright=0.6|The bioretention area installed at O’Connor Park
-in Mississauga is part of a stormwater management system
-that treats parking lot runoff prior to discharging to a local
-wetland. (Source: CVC)]]
-This makes an ideal location for a LID
-retrofit. Where grading allows, you can construct bioswales
-and bioretention areas in these green areas to pre-treat water
-prior to infiltration.
-You can also design parking surfaces and internal roadways
-as infiltration systems using permeable pavement. This retrofit
-strategy can be combined with other LID practices.
-A pedestrian pathway paved with permeable pavement
-is another LID option for your park. They will reduce runoff
-volumes and encourage on-site infiltration. Pervious pipes
-are a viable option on many parks sites as well. They can be
-an alternative to conventional conveyance systems such as
-storm sewers. They encourage infiltration from hard surfaces
-and can be used to convey water to other LID features.
-'''<h4>Accepting drainage from off-site areas</h4>'''
-Does municipally owned land drain into your retrofit site? If
-so, this is an opportunity to provide stormwater controls for
-these areas.
-Roads are the most common source of runoff from external
-properties into parks. Treating municipal road runoff in a park
-requires planning input from municipal roads department
-staff. For these projects, the team must understand how all
-roads activities, including winter maintenance and potential
-roadwork, will affect the operation of LID practices in the park.
-'''<h3>Inter-municipal transfer of funds</h3>'''
-Integrating LID practices into the municipal stormwater
-management framework may change how municipal funds are
-managed. Traditional stormwater management maintenance
-resources and funds may have to be transferred to
-[[File:Example1.jpg|thumb|upright=0.6|Urban parkettes may look small, but they have
-the potential to treat a large surface area of road. Typical ratios
-of impervious drainage area to bioretention range from 5:1 to
-:1. (Source: CVC)]]
-a more landscape-based stormwater management maintenance
-program. Instead of infrequent but expensive stormwater
-management pond sediment removal operations, time and
-resources will be spent on more frequent but inexpensive
-maintenance projects including pruning and weeding
-bioretention practices or sweeping permeable pavement.
-Municipalities generally have the required staff and
-infrastructure within departments (e.g. arborist and
-horticulturalists in parks departments) to manage the
-maintenance of LID measures; however, funding this
-maintenance may require a transfer of funding and additional
-training.

Difference between revisions of "LID opportunities in park lands"

Latest revision as of 18:16, 15 March 2019

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