Environmentally Friendly Stormwater Works

Collecting stormwater to keep Mitcham green is another way Council is building a better City now and for the future. 

Council, with support from the Adelaide and Mount Lofty Ranges Natural Resources Management Board, the Environment Protection Agency and Water Sensitive SA, is building water-sensitive infrastructure across Mitcham. 

With a $270,000 grant from the Adelaide and Mount Lofty Ranges Natural Resources Management Board and $67,500 provided under the EPA’s Rain Garden 500 Program, Council built new rain gardens, self watering reserve soakage trenches and permeable pavements to harvest stormwater. By using stormwater locally we can keep our trees healthy, reduce downstream pollution as well as solve flooding issues. 

Rain gardens have been built in Barretts Road, Clapham; Lochness Avenue, Torrens Park; Aldershot and Neville Avenues, Clarence Gardens and in Springfield. The gardens filter stormwater runoff to remove pollutants and sediment before soaking into the soil to water trees, with excess clean water discharged into the stormwater network. 

In Netherby, a flood issue has been solved by upgrading drainage and soaking water into trenches on the reserve at the corner of Netherby and Bartley Avenues. Stormwater collected will help the established trees and the new Oaks and Callery Pears to flourish. 

Soakage trenches totalling 180 metres in length have been installed in Thurles Avenue Reserve in St Marys. These trenches harvest stormwater from three of the surrounding streets and hold it while it soaks into the soil to water the trees. Council has also planted new trees on the reserve to help to soak up even more stormwater. 

Permeable paving was included in a new footpath in Watt Street in Hawthorn and has been used in the road on parts of Norseman Avenue and Garden Road in Westbourne Park and Wheaton and Kegworth Roads in Melrose Park. Permeable paving allows water to soak through into the soil below, so it reduces flood risk and stormwater runoff while removing pollutants and helping to keep our City cool and green. 

Soakage trenches and permeable paving at Kegworth Reserve in Melrose Park will help to maintain the health of the trees, including some large and significant River Red Gums. 

These environmentally friendly stormwater works reduce the strain on traditional stormwater drainage, reduce flooding issues and save Council and ratepayers millions of dollars.

Harvey Hayes Reserve Rain Garden

The new rain garden constructed last year in Harvey Hayes Reserve, between Wilmott and Day Avenues in Daw Park receives stormwater from as far as Goodwood Road, soaking it into the reserve’s soil to reduce the potential for flooding downstream, while any overflow is filtered through the pond’s sedges and rushes. Indigenous plants surrounding the pond will continue to grow over the next year or two and more species will be added in the future to increase biodiversity, add colour, attract butterflies and provide improved cover for birds.

Harvey Hayes Reserve in Daw Park BeforeHarvey Hayes Reserve in Daw Park After



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