Burpengary
Project Background:
Our team was engaged to construct in-situ concrete headwalls and retaining walls as part of an upgrade to the emergency road crossing. The works involved extending the existing headwalls adjacent to the culverts to support infrastructure upgrades, while maintaining the functionality of the existing drainage system.
Challenges:
A key challenge was safely extending the existing headwall structure, which introduced significant working at height risks. Additionally, the project required forming and pouring small, complex sections of the wall due to restricted access and the unique geometry of the site. Some retaining walls reached heights of up to 3.5 metres and followed challenging angles and slopes, adding to the complexity.
Solution & Results:
To manage safety risks, we implemented scaffolding and handrails in all elevated work areas, ensuring our team could operate safely and efficiently. Careful staging and formwork planning allowed us to pour the walls in manageable sections without compromising on quality. The use of 40MPa in-situ concrete provided a durable, long-lasting structure that tied in seamlessly with the existing infrastructure. By retaining and building onto the existing headwalls rather than demolishing them, we delivered a cost-effective, high-quality solution for the client, reducing disruption and environmental impact.
