Marion + Richmond Road Intersection Upgrade

The Marion Road and Richmond Road intersection upgrade formed part of the North-South Corridor Broader Network Upgrades, supporting improved movement between Adelaide’s southern suburbs, the CBD and Adelaide Airport. The $40 million project focused on increasing intersection capacity, improving freight efficiency and strengthening connectivity across the surrounding road network.

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As principal civil design lead, MLEI coordinated the multidisciplinary engineering design and documentation, integrating civil, traffic, pavement, lighting, urban design and environmental considerations. The design progressed rapidly to 30% completion before the project was suspended following the withdrawal of Federal Government funding.

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Key project elements

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• Principal civil design lead
• Civil engineering design for intersection capacity and network performance
• Pavement, traffic signal and lighting design coordination
• Traffic engineering assessment
• Urban design and landscape integration
• Cost estimating and project planning
• Environmental, heritage and sustainability considerations
• Multidisciplinary design coordination to 30% completion