As the wettest ever recorded summer winds down for the City of Ottawa — one that caused substantial flooding for thousands of residents — local officials have started a pilot project with a local company to test permeable pavement to help manage rainfall.
In June, 123 millimetres of rain showered Ottawa, compared to the historical monthly average of approximately 97 millimetres.
Then, the city recorded a historic 118.4 millimetres of rainfall at the Ottawa International Airport on July 1, doubling the previous Canada Day record from 1959.
Now, Ottawa has partnered with PurePave Technologies, a company that specializes in permeable driveway and stormwater solutions that allow the ground to act like a sponge, instead of relying on storm sewers and drains.
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The company also claims that its technology functions well in cold weather, setting it apart from competitors. It is able to be snow-plowed and maintained through winter.
Ottawa officials will soon begin testing the specialized pavement along the shoulders of stretches of Anna Avenue and Crown Crescent.
The city has also been working with PurePave Technologies on road and right-of-way applications to help manage stormwater in partnership with Carleton University.
At a recent media demonstration in Ottawa, the permeable pavement absorbed 18 litres of water in 32 seconds through less than one square foot of surface area.
Through the Rain Ready Ottawa program, eligible residents may receive rebates for approved stormwater improvements, including permeable pavement. For qualifying projects, the city may contribute up to $5,000, helping homeowners upgrade to a surface that improves both the property and its stormwater performance.
The pilot project has received financial support from the federal government and involves research collaboration with the University of Ottawa and Carleton University.
