Our Experience—Transport
Moonta Street Upgrade— $4m CIVIL, GEOTECHNICAL AND STORMWATER
Image Credit: City of Melbourne
Located in the heart of Adelaide’s Chinatown and the restaurant/ nightlife precinct, the Moonta Street upgrade aimed to create a greener, more inviting precinct, while enhancing pedestrian activation and the outdoor dining experience. The project included a new locally sourced granite stone paved surface, increased street greening, increased pedestrian safety and an upgraded and integrated stormwater management system. WGA navigated the detailed design process through the numerous constraints, including the large number of existing utility services that are common in a precinct of this nature. Amongst these challenges, the design of the natural stone pavement required utilising a number of recognised international standards to ensure the City of Adelaide’s trafficability outcomes were met, whilst ensuring a high visual amenity for the street was achieved. WGA’s engineers were a key part of the team in both the design and the construction phases of the project. Involvement in both stages provided immense benefit in resolving challenging construction conditions on site, particularly relating to the stormwater system and the pavement reconstruction. Encountering many unknown services and underground structures on site challenged WGA to create bespoke stormwater pits and specialised pavements around tree root crowns. Overcoming these impediments allowed for key outcomes for the design to be achieved within the streetscape. WGA worked closely with the City of Adelaide Urban Design team and the civil contractor bringing a wealth of knowledge and previous learnings from working on inner city streetscape projects, and provided all the engineering services required for Moonta Street upgrade from both a design and construction aspect.
Greenline Project—$20m CIVIL, GEOTECHNICAL, STRUCTURAL, SUSTAINABILITY AND TRAFFIC
The City of Melbourne’s Greenline Project is a transformative 4km revitalisation along the Yarra River Birrarung, stretching from Birrarung Marr to the Bolte Bridge. This ambitious initiative weaves together promenades, parks, open spaces, native plantings, cultural activations, and environmental renewal—supported by extensive infrastructure works including boardwalks, lighting, electrical systems, stormwater drainage, meadows and vegetation zones, pavements, footpaths, retaining walls, seating areas, and other structural elements.
A key feature of the project is the meaningful recognition and celebration of contemporary Wurundjeri culture and heritage, embedded throughout the design and delivery.
WGA was engaged to provide specialist engineering services across civil, geotechnical, structural, flood modelling, stormwater, and water quality disciplines. The design of embankment batters at 1:2 or 1:3 gradients ensured long-term stability, with steel edging incorporated to provide low-level water containment. Beneath the boardwalks, rock beaching was adopted to protect against scour and reduce maintenance requirements. Drainage design was closely coordinated with landscape and civil elements, enabling pathway runoff to be passively irrigated into garden beds. This approach supported sustainability, tree health, and water treatment, with excess water only released into the Yarra River after being managed within the landscape.
The outcome increased the overall visual amenity and pedestrian linkage across the CBD, meeting the requirements set by Council and the key stakeholders.
Multiple diffuse outfalls from garden beds were used to avoid concentrated discharge, reducing the need for formalised stormwater infrastructure and enhancing the project’s environmental performance.
The project was awarded the 2022 AILA Award (SA) – Urban Design category, highlighting the success of the integrated design and construction work achieved between WGA, the contractor and landscape architecture teams.
Through the thoughtful integration of engineering, landscape, and cultural elements, the Greenline Project sets a new benchmark for urban renewal along the Yarra River. WGA’s contributions helped shape a resilient, sustainable, and inclusive public realm—one that enhances connectivity, celebrates heritage, and supports long-term environmental health for generations to come.
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TRANSPORT CAPABILITY STATEMENT
TRANSPORT CAPABILITY STATEMENT
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