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Urban sustainability has emerged as one of the defining challenges of the 21st century. One of the many questions it poses is how can the infrastructure of a city be sustained, particularly in the face of population growth, climate change and increasing consumption of non-renewable resources.


Much of the focus within the urban sustainability debate has been around built or 'grey' infrastructure such as housing, transportation systems and utility services. However, the sustainability of 'green' infrastructure within our cities is equally as important in maintaining our quality of life.

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The Sydney Metro CMA’s WSUD Program has recently developed a range of WSUD Typical Drawings developed to represent typical WSUD treatment systems.

The purpose of the drawings are to provide design guidance on key details; however they are not a stand-alone design resource and should be read in conjunction with other designated design guidelines. The drawings illustrate the key features of the treatment system, giving typical dimensions and specifications, but also showing where variation is possible. Practitioners can vary the drawings to suit their own needs.

The document includes the following and typical drawings and are intended for a technical audience (eg. Civil/Environmental Engineers and other design professionals):

  • Bioretention System – Flat Site;
  • Bioretention System - Steep Site;
  • Bioretention System – Footpath;
  • Bioretention System – Roadway;
  • Bioretention Details;
  • Bioretention Guideline Specifications;
  • Swale – Flat Site;
  • Swale – Steep Site;
  • Swales – Details.

To download the drawings refer to and click on the button entitled WSUD Typical Drawings.