Waterways and Wetland Linkages



SWCC partners with local governments to deliver strategic Water Sensitive Urban Design (WSUD) projects to improve water quality in priority estuaries across the South West NRM Region. SWCC also aims to increase the knowledge and skills of environmental managers by providing training workshops on the latest WSUD science, methodologies and best management practices.

Since the project began in 2014, SWCC has developed partnerships with the Shire of Augusta-Margaret River, City of Bunbury and City of Busselton to undertake WSUD projects in the south west region; and delivered several workshops to increase WSUD management skills.

In 2016/17, SWCC has worked with the City of Bunbury and City of Busselton on WSUD projects.

As part of a larger upgrade of the Koombana Drive carriageway, SWCC partnered with the City of Bunbury to install biofilter (or ‘rain garden’) which intercepts and treats stormwater runoff from the road to improve the quality of water entering the Leschenault Inlet. The rain garden is also accompanied by interpretive signage to educate people about the function of WSUD.

25 people from five Local Government Authorities have attended a training workshop, delivered in partnership with the City of Busselton, to increase knowledge and skills about the function and maintenance requirements of WSUD infrastructure.  As skills and knowledge increase, the water quality of the local government catchments will be better managed as a result.

SWCC has also partnered with the City of Busselton to install a Gross Pollutant Trap in east Busselton which will intercept pollutants to prevent impacts to the Ramsar listed Vasse Estuary.

“The Gross Pollutant Trap will work like a large filter, intercepting and removing litter and other pollutants from the stormwater before it reaches the Vasse Estuary

The City of Busselton’s Senior Technical Officer, Dave McKenna says the new Gross Pollutant Trap installed near Laymen Road will have great benefits


SWCC is working towards establishing another WSUD partnership project with local government for implementation in 2017/18.


Many local native plants are effective at removing pollutants from stormwater when used in Water Sensitive Urban Design structures such as biofilters (also known as rain gardens).


  • Shire of Augusta Margaret River
  • City of Bunbury
  • City of Busselton

1x WSUD installed

2x WSUD installed (including one Biofilter and one Gross Pollutant Trap); 3x interpretive signs installed

1x workshop held

2x workshops held

Project Manager

Pip Marshall

© 2022 South West Catchments Council


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