Pollution and stormwater runoff have been found to contribute to seagrass loss along urban coastlines. With its catchments contributing to flows discharged into Adelaide’s coastal waters, the City of Unley is pursuing ways it can improve the quality of its stormwater to not only help stop seagrass loss but to play a key role in improving the quality of water discharged from the metropolitan area.
The City of Unley received federal government grant funds, through the EPA’s Catchments to Coast Project, to design and construct streetscape scale bioretention systems as demonstration sites for other Councils. The proposed streetscape redevelopment of Randolph Avenue presented an opportunity for the City of Unley to integrate WSUD solutions to the street upgrade and to pave the way for treatments at other sites within the Council area, and across metropolitan Adelaide.
Southfront, teaming up with landscape architecture and urban design firm Aspect Studios, completed the detailed streetscape design, which includes a series of bioretention rain gardens. The project is in the early construction phase, further updates will be provided as construction progresses.