The scope comprises ~300,000m3 of earthworks cut and fill, management of Acid Sulphate Rock, a two-span precast concrete bridge, retaining walls, drainage, pavement construction, and associated road furniture.
- Duplicate 2.4km of the Great Western Highway (GWH), median-separated dual carriageways on a new alignment
- Interchange at Coxs River Road, supplemented by new sections of connecting roadway
- Milling and re-sheeting the existing GWH alignment, creating a new service road in order to maintain access to local roads and properties
- Upgrades to intersections at Browns Gap Road and Baaners Lane
- Tie-ins to the existing GWH at the eastern and western ends of the new alignment
- Two-span precast concrete pre-stressed box girder bridge (70 meters)
- Secant pile retaining walls, Soil-nailed walls and concrete retaining walls
- Pavement construction including >70,000T of asphalt, 60,000 m3 SMZ and unbound pavement
- New 2.4 km shared path for pedestrians and cyclists
- Ancillary works such as associated road furniture driveways, footpaths, kerbs, and gutters, retaining walls, slope treatment, drainage works (subsoil and pipes), water quality basins and landscaping (18HA)
Click here to watch the girder bridge’s timelapse.
