This project involved the end-to-end design, fabrication, and installation of an 800-metre bridge walkway, delivering a safer and more efficient solution for rail operations and maintenance. The new walkway provides a dedicated access path outside the rail danger zone, while also accommodating relocated high-voltage cables beneath the structure.
Working within the constraints of an existing rail bridge required detailed surveying, innovative engineering, and careful coordination to ensure seamless integration with the existing asset while minimising impacts on rail operations. By undertaking installation from the water using custom lifting equipment mounted on barges, the project was delivered without the need for rail possessions, significantly reducing disruption and accelerating delivery.
Scope of Works
- End-to-end design, fabrication, and installation of an 800-metre bridge walkway.
- Detailed surveying and engineering design to integrate the walkway with the existing bridge structure.
- Design and deployment of custom lifting equipment, including a jib and lifting frame mounted on barges.
- Marine-based installation of walkway components without requiring rail possessions.
- Fabrication of all steelwork at the Horsley Park facility.
- Galvanising and protective coating of structural steel for long-term durability.
- Design and installation of two new maintenance gantries beneath the bridge.
- Installation of gantry systems from barges while maintaining live rail operations.
- Major steel replacement works.
- Runway beam strengthening.
- Bridge bearing upgrades.
- High-voltage cable rerouting and associated infrastructure modifications.
- Project management and coordination to ensure safe delivery with minimal disruption to rail services.
