There are several types of green stormwater infrastructure
tools to manage urban stormwater runoff.
Tree trenches, sidewalk bump-outs, planters, pervious pavement, green
roofs, rain barrels, and rain gardens are common examples.
The Darby-Cobbs watershed has implemented some porous
basketball courts, as mentioned in my last post, to manage stormwater
runoff. Water can soak into the
ground slowly through the porous asphalt rather than rush to a stormwater drain
and go through the combined sewer system.
This helps replenish groundwater, prevent flash flooding, and protect
rivers and streams within a watershed.
Porous asphalt, pervious concrete, and interlocking concrete
pavers are the three main types of pervious pavement. The following is a review of porous asphalt as a practice to manage stormwater runoff.
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| Porous asphalt (Source: National Asphalt Pavement Association) |
