Australian urban designers and water workers have reimagined the country’s wastewater as an asset.
Doing so has changed constituents’ views about the resource’s utility. Now, it is a public amenity and something they have seen change their country through water-sensitive urban design (WSUD).
This climate-resilient and thoughtful shift toward a more sustainable and circular society could inspire professionals worldwide.
The role of sustainable stormwater management and its benefits
Australia’s population has been growing for a long time, and water demand has been rising alongside it since the early 2000s.
More growth could add up to 1,450 gigalitres to the nation’s yearly water needs in the coming years, with desalination and electricity costs as the primary concerns. Prices could rise for households and businesses, leaving little water for other public projects.
WSUD has the potential to prevent these scenarios. Boosting water availability while finding more applications for recycling and treatment could lead to:
- Better water quality motivated by research or new tech implementation.
- Increased biodiversity from healthier habitats.
- Expanded recreational opportunities in rural and urban areas, such as parks and trails.
- Boosted citizen well-being from reduced water stress and exposure to greener areas.
- Higher resilience to climate stressors with stronger vegetation and inherent water retention.
- Reduced expenses for potable uses by having other reserves for nonpotable applications.
Ultimately, bringing these once-ignored areas into public purview has made Australians happier. They have more options to explore their natural environments, which adds value to their lives in more ways than improved utility availability.
Melbourne’s reimagining of creeks
Melbourne Water established the Reimagining Your Creek program, which is transforming stormwater channels, such as drains and concrete areas into spaces that are more desirable, open and multifunctional.
The Moonee and Taralla Creeks both have plans to become more public assets. They have become naturalised creeks and support wetland development, making community spaces lush with native wildlife.
The Blind Creek is another success story, incorporating daylighting strategies to make walkable pathways with stepping stones and bridges. Each transformation has created more flowing waterways that citizens can enjoy, even though they are near drains and piping channels.
The Sydney Park Water Reuse Project
Investments in water reuse could grow to all-time highs, with funding reaching $21.5 billion by 2027, demonstrating a global goal to improve harvesting and treatment.
The Sydney Park Water Reuse Project is one of the most internationally famous examples, especially at its scale. The initiative took Sydney Park, an old brickworks site, and redeveloped it with recreation and the youth in mind.
The site has undergone multiple phases to become a stormwater harvesting site and public park. It circulates captured water throughout the 109 acres, using it to water lawns, flush toilets, and keep sports turf in pristine condition.
Additionally, there are smaller microhabitats throughout the property that have natural bioretention properties. These waters are naturally higher quality because of natural filtration, reducing the presence of metals like nickel and copper.
Sydney Park also offers educational amenities to visitors. People read the signage posted around the lands and have reported a better understanding of stormwater management. They can post about it on social media with relevant hashtags, bringing greater awareness to environmental conservation and eco-tourism.
Citizens have also become more familiar with identifying local animals, including birds, which have become more frequent in the area due to increased freshwater availability.
The drainage for liveability program in Western Australia
The Western Australian government has designed the Drainage for Liveability Program to promote smarter stormwater design principles. It has urged the use of passive water transport while considering the recreational potential of built infrastructure.
The areas around basins and drains could be enticing green spaces for communities and make them more livable by eliminating water sensitivity.
The government also anticipates additional mental health benefits, including increased community engagement and fulfilment from participating in local green spaces.
The infrastructure designs incorporate several WSUD essentials, including drain systems converted into living streams.
It also repurposes some rainfall events and puts them through natural filtering systems.
It alleviates some burdens on other water infrastructure, extending their lifespans through reduced stress.
WSUD in Adelaide creates a sustainable water future
Adelaide is another area making the most of its volatile climate. Sometimes, there are droughts, or heavy rains overwhelm the region.
This is why Adelaide has committed many resources to becoming a water-sensitive city. It has achieved this from many angles, including farmland observation, reservoir restoration, wetland stabilisation and more.
Construction and water works worldwide can learn from Adelaide because it uses all types of water in its management equally, including stormwater, wastewater, groundwater, rainwater and drinking water in its strategising.
It has altered streetscape designs with improved landscaping and motivated visitors to learn more about local botanic gardens.
This has led to several successful projects. The first is the Glenelg to Adelaide Recycled Water Scheme, which moves recycled water to 163 acres of Park Lands to lower reliance on mains water.
It also sparked a yearly inventory of water sources and capacities, which can inform which buildings can start integrating recycled resources.
Reshaping nations around water infrastructure
Water scarcity and overall consumption are rising, making contamination even more challenging for wastewater workers to treat and provide clean water. Reimagining wastewater as an opportunity rather than a looming burden or an urgent threat can change societies, as it has in Australia.
In the future, cities will find even more ways to make resources more accessible and infrastructure more functional.
