Permeable pavement could one day be coming to a street or road near you as municipalities put a LID on rain runoff.
Over 120 regional municipal staff, engineers and conservation professionals attended a training conference in Ottawa to learn more about the sustainable green infrastructure practice known as Low Impact Development (LID).
LID is a stormwater management strategy that mitigates the impacts of increased runoff in urban areas and stormwater pollution by managing runoff as close to its source as possible.
Some measures include permeable pavements, rainwater harvesting and grass swales, which can reduce the risks of flash flooding in communities and can improve water quality and habitat by minimizing pollution.
“We’re hoping that our colleagues will walk away with some new ideas in mind for future LID projects,” says Sandra Mancini, Engineering Team Lead with South Nation Conservation, one of the agencies organizing the meeting.
At its head office in Finch, SNC recently installed a permeable parking lot which will also serve as a regional LID demonstration site.
The asphalt used in the project allows rain water to infiltrate into the ground rather than having it flow to into a nearby storm pond. Funding was received through the Great Lakes Guardian Community Fund.
“LID projects can visually, economically and environmentally benefit the communities in which they are implemented,” explains Ms. Mancini.
“Rather than having rain water pour off your driveway and flood your street or your yard, it can get soaked through permeable pavement and into the ground.”
Currently the Ontario government is developing guidelines for LID; an increasing number of municipalities are embracing LID projects in their communities.