Project Highlights

Personnel on Site: 175
Approx. Manhours: 252,000
Concrete: 11,000m³
Earthworks: 102,573m³
Structural Steel: 2,600T

Project Details

Samsung C&T engaged Centrals to construct 11 bridges associated with the 383 km rail network for the Roy Hill Iron Ore Project. Construction of the bridges included installation of sub structure, super structure, general earthworks and embankments between the Roy Hill Mine and Port Hedland. The 11 rail bridges spanned three varying elements; with eight bridges crossing rivers, two bridges crossing operational rail lines and one bridge crossing an existing operation haul road.

Civil and Piling

  • Installation of bored piled foundations and passive rock anchors including driving of pile casing, pile internal boring, reinforcement and concrete placement, pile head treatment and associated acceptance testing
  • Construction of pile caps, piers, abutment walls, wing walls, deflection walls, approach slabs, drag slabs and onsite precasting of headstocks
  • All formwork, scaffolding and temporary support works, and placement of falsework reinforcement and concrete for composite concrete deck slabs
  • QA/QC acceptance testing for piling, concrete, grout, welding and soil compaction


  • Temporary works consisted of design and construction of causeways, drill pads and crane pads
  • Winning of suitable material from designated borrow areas, loading, hauling within 3 km radius, placing, spreading, levelling and compacting
  • Placement of cement stabilised backfill
  • Formation of guide banks, placement of geotextile and rock protection
  • Detailed excavation to reduced levels, lines and grades including compaction as necessary for the construction of reinforced concrete footings, foundations, pile caps, slabs and other concrete structures

Structural Works

  • Installation of hand railing, grid mesh and service conduit to prefabricated modular bridge sections
  • Lifting and final placement of completed modular bridge sections
  • Installation of abutment access stairways and viewing platform structures

Other Works

  • Development and implementation of a Rail Safety Management Plan, and a full suite of project-specific management plans including safety, quality, construction and project execution
  • Full time survey support including post construction as-build drawings and reports

Roy Hill Bridges

Project Details

Client: Samsung C&T

Location: Roy Hill, Pilbara, WA

Duration: 14 months

Completion: November 2014

Value: $100M+