Dohertys Road

Infrastructure

Location

Laverton North, Victoria
Client

WBHO Infrastructure Pty Ltd
Industry Sector

Transport

Other Winslow Solutions involved in the project

Major Road Projects
Utilities
Surveying

This $92M project involved upgrading Dohertys Road from Fitzgerald Road to Grieve Parade in Laverton North to improve access to key freight routes and industrial areas.

Project works included construction of a significant five-span bridge over the operating Princes Freeway, approximately 4km of arterial road duplication in a heavily industrialised area, and extensive service relocation and protection works. Major intersections were upgraded with new signalised intersections at Fitzgerald Road and Hume Road, and new roundabouts at Gordon Luck Avenue, Cherry Lane and Cyanamid Street.

Key Achievements

Complex Project Management. This duplication is considered one of the most difficult brownfield road projects ever undertaken in Melbourne. The site sits among many large-scale businesses with extensive, private utility infrastructure. All excavation along the alignment required service proving that was collated within a 3D BIM model. This facilitated clash detection that was the cornerstone of our permit processes for in-ground and overground works.
Service Relocation. Our team worked in the vicinity of the high-pressure Liquide Air pipelines, the 66KB high voltage APA gas transmission line and the heritage-listed Melbourne Outfall Sewer. The 600mm MSCL Western Watermain was relocated to accommodate bridge abutments. Winslow’s dedicated utility team worked through modifications, protections and redesign for 18 months so that the works could be completed safely.
Structures. A 60m steel truss bridge with architectural cladding was designed to provide for Federation Trail pedestrian and bicycle traffic over the Dohertys Road alignment. Further to this, a complicated five-span bridge was built within the Princes Freeway alignment, with Winslow nominating pre-cast elements for piers, cross-heads and abutments to minimise impacts between plant, personnel and the travelling public in the constrained environment.
Safety. With utilities management being a key risk for the project, a number of safety initiatives were developed on Dohertys Road, including the implementation of overhead gantries for protection of overhead services and improved excavation permit processes.
Environment and Sustainability. Winslow focused on recycling of products and natural resources throughout project delivery. This included recycling of piling water for use in dust suppression, as well as capturing and using rainwater for washing down pavements and equipment. Silt basins were constructed to manage the NDD and wastewater from site, with slurry and water treated with a solidification agent then dried out and reused as fill. Excavated rock was crushed for reuse in retaining walls and abutments, and soil was recycled for use in landscaping works. Crushed glass sand was also used instead of using natural resources (river sand) for NDD and subsurface drainage works.