Ravensworth North

Hunter Valley, NSW                                                                

The Bridge Construction at Ravensworth North was a part of the upgrade of the Ravensworth North CHP and CPP for Xstrata Coal. The 28m long bridge spanned over the Macquarie Generation Conveyor and associated pipe infrastructure. This 2 span bridge had a centre pier and reinforced walls at the abutments.

The bridge works were constructed as part of an overall CHPP Civil Works Package valued at $30m and carried out over a 20 month duration.

Scope of Work

  • Construction of In-Situ Piles and Columns in close proximity to existing mine infrastructure
  • Construction of 2 x Abutment Reinforced Earth Retaining Walls
  • Construction of Centre Pier adjacent to internal mine road with constant traffic
  • Placement of 28 bridge planks over the existing mine infrastructure

Project Highlights

  • The construction of the bridge was carried out adjacent to and over existing conveyors and pipelines with special attention being given to minimising vibration and mitigating the risk of damage to these critical pieces of infrastructure ensuring no disruption to mining operations.

Southern Road Connection

Greystanes, NSW

Road works and Bridge construction on Reconciliation Road and the Parramatta to Liverpool Transit way (PTL) for Boral associated with the redevelopment of the old Prospect Quarry.

Project duration of 20 months at a value of $15m.

The PLT, bridge and road construction was carried out adjacent to fragile Sydney Water assets where onerous vibration restrictions were placed on works in the area to mitigate risk of damage to critical infrastructure. Project delivered on time to the satisfaction of asset owner with no damage to the asset.

Scope of Work

  • Raising of the existing Parramatta to Liverpool Transit Way bridge by up to 2 metres
  • Construction of 20m span bridge over an existing critical water main service
  • 1.2km of new roads and drainage
  • New Signalised intersection
  • Installation of services; electrical, water, communication

Project Highlights

  • Project required significant planning and co-ordination owing to the fact that within the scope of works boundaries were 3 separate certifying bodies: Roads and Maritime Services (RTA at the time) for the PLT, Holroyd City Council to the north of the PLT and Blacktown City Council to the south. All works were completed and certified to the varying specifications within program and budget.
  • Construction of 2 mid-bridge headstocks with bored cast in-situ piles within the floodplain of Prospect Creek with no environmental impacts or incidents.
  • Co-ordination and installation of 74 off bridge beams using a 350 ton mobile crane on 3 separate constructed crane pads to program and budget.

Loadstone Rail Overbridge

North Coast, NSW                                                                   

Construction of 45 metre rail overbridge on ARTC’s North Coast rail line for TEJV Alliance.

Project duration of 4 months at a value of $1.5m.

Loadstone overbridge works were performed as part of an overall package of works the Robson performed for ARTC and TEJV under the Northern Improvement Alliance Contract. Robson delivered 12 rail crossing loops on the New South Wales Ulan, Hunter, and North Coast rail lines for Australian Rail Track Corporation (TEJV Alliance). Various packages were completed over a 30 month period at a value of $30m.

Scope of Work

  • Bridge abutment pilling
  • Construct bridge abutments
  • Construct bridge piers
  • Installation of pre-cast beams
  • Construct deck slab
  • Bridge approach roadworks
  • Guardrails and cattle screening erection

Project Highlights

  • Co-ordinating works within rail corridor and train running schedule
  • Installation of pre-cast beams within rail shutdown possession
  • Working within a confined cutting work zone

Mindaribba Rail Underbridge

North Coast, NSW                                                                   

Construction of rail underbridge on ARTC North Coast rail line for TEJV Alliance.

Project duration of 4 months at a value of $1.5m.

Mindaribba underbridge works were performed as part of an overall package of works the Robson performed for ARTC and TEJV under the Northern Improvement Alliance Contract. Robson delivered 12 rail crossing loops on the New South Wales Ulan, Hunter, and North Coast rail lines for Australian Rail Track Corporation (TEJV Alliance). Various packages were completed over a 30 month period at a value of $30m.

Scope of Work

  • Dam and divert existing watercourse
  • Construct footings
  • Extend existing abutments and wing walls
  • Demolish existing timber single line bridge
  • Construct new dual line concrete bridge deck
  • Construct walkways and approach slabs
  • Construct new gabion lined creek bed

Project Highlights

  • Works completed between trains on an operational rail line
  • The mainline side of the bridge reconstruction was accelerated to meet with ARTC’s predetermined possession date

Newdell Junction Rail Bridge

Hunter Valley, NSW                                                                 

Construction of replacement rail bridge in the Hunter Valley for Rio Tinto Coal Australia.

Project duration of 1 month at a value of $1m.

Scope of Work

  • Removal of existing headstocks and replacement 
  • Fabrication of new bridge components
  • Removal of existing bridge spans and replacement during shutdown
  • Placement of approach slabs
  • Construction of associated walkways and railings 

Project Highlights

  • An innovative precast approach slab design used to expedite the construction program