WA’s Preferred Contracting Company

Projects

Civil Construction

Coastal Waters Projects for Monadelphous

This project was for the construction of a 90 kilometre pipeline and associated infrastructure for Rio Tinto in the Millstream-Chichester National Park. Centrals’ scope included the clearing, construction and maintenance of pipeline roads and access tracks, many across substantial floodways, as well as the construction of numerous pads for collector mains and pump stations.

Glengarry and Bringo Rail Works for Brookfield Rail

This project involved the widening of embankments and cuttings to accommodate wider track on the Geraldton – Mullewa line between the Glengarry and Bringo Stations.  Centrals were responsible for foundation preparation, embankment construction and compaction, and laying of erosion control infrastructure, as well as the installation of culverts and drains with cement stabilised backfill to improve surface water management along the track.   In addition to the construction, Centrals were also responsible for traffic management and rail safety during these works.

Great Northern Highway Realignment for Doray Minerals

This project is to realign 1.6 kilometres of the Great Northern Highway, 45 kilometres north of Meekatharra.  The works are being undertaken to facilitate the expansion of the Andy Well Project for Doray Minerals.  The scope of work includes realignment of a floodway, installation of culverts, and installation of road signs and linemarking.

Golden Grove Airstrip Upgrade Stages 1 & 2 for MMG

These projects involved reshaping the footprint of the strip and upgrading drainage. The strip was sheeted with 150 mm gravel, sealed with sand seal; and line-marked. The result was an all-weather airstrip which could cater for larger aircraft.  In the second stage, the sand seal was removed; drainage was further upgraded to include the runway apron and carkpark; clearing was undertaken to provide a 30 degrees sight zone for pilots (a safety requirement); two-coat seal applied to the runway, apron and carpark; linemarking; strip lighting; and solar powered wind sock.

Loop Z Access Road for the Department of Environment & Conservation

This project was for the upgrade of the Loop-Z Bend Access Road and associated carpark located in the environmentally sensitive Kalbarri National Park.  The scope of works comprised: clearing and earthworks; construction of basecourse pavement; drainage construction; two-coat bituminous surfacing; kerbing; 25 millimetre asphalt surfacing; installation of signs and miscellaneous carpark items; and rehabilitation of sand and gravel basecourse pits.

Service Relocation & Access Roads at Geraldton Port for Karara Mining

This project involved the decommissioning of existing roads and the construction of new entry roads into the Geraldton Port.  This scope of work required the relocation of a large amount of marked and unmarked services under high volumes of public and heavy haulage traffic.  In addition, new roads were constructed for Karara Mining’s storage and ship loading facilities in an operating port environment.

Land Development

Exmouth Town Centre Rejuvenation for the Shire of Exmouth

This project was delivered in four stages to revitalise the townsite of Exmouth – Western Car Park and Thew Street extension; Thew Street reconstruction; Kennedy Street reconstruction; and Western Long Vehicle Car Park and existing Learmonth Street upgrades.  The scope of works comprise:  demolition of pavements and buildings; construction and reconstruction of roads and intersections; diversion of existing open drain and culvert installation; construction of new carparks; and construction of sewer reticulation services; traffic management; site and public safety measures; and community relations.

Deepdale North Stages 1 & 2 for Aeges

Centrals undertook the earthworks and civil works for the Stages 1 and 2 of the Deepdale by the River Estate, located ten kilometres from Geraldton’s CBD.

The scope of work for these 63 lots included: bulk and detailed earthworks including clearing, excavation, and materials handling and management; road and associated works; stormwater drainage, including large, stabilised swale drains and sumps; water reticulation; underground power services; and communications infrastructure installation, including NBN.

Arcadia Waters Stage 2 for Arcadia Waters Midwest

This 17 lot project comprised earthworks, civil works, roads and associated infrastructure, services installation, limestone boundary walls, fencing and gates, landscaping and improvements associated with the expansion of the Arcadia Waters Retirement Village in Geraldton.  The large amount of rock encountered during deep sewer excavations, coupled with the works being undertaken in required alternative, previously installed services which had not been detailed, and the fact that the works were conducted in a high density residential area, presented some challenges to Centrals during their management of these works.

Seacrest Estate

Centrals have undertaken several stages of the Seacrest Estate, located six kilometres from Geraldton’s CBD, including:

  • Stage 14 Earthworks and Civil Works for 86 lots
  • Stages 7, 8 and 9 Earthworks and Civil Works for 280 lots
  • Stages 5 and 6 Earthworks and Civil Works for 105 lots
  • Miscellaneous earthworks and civil works, as required.

The scope of works for all stages included: bulk and detailed earthworks including clearing, excavation, and materials handling and management; gravity sewers and manholes; stormwater drainage; road and associated works; retaining walls; water reticulation; power and communications installation; and landscaping.

Landcare

Yandi Access Road for BHP Billiton Iron Ore

Centrals were engaged to mulch the verge of approximately 75 kilometres of the Yandi mine main access road.  The mulching significantly enhanced safety by improving sight distances, creating greater visibility as to livestock or other wildlife on the road.

West Erregulla Seismic Corridors for Warrego Energy

Centrals mulched approximately 200 kilometres of seismic access corridors.  To minimise the duration in the field and ensure cost effective implementation, Centrals allocated additional resources to provide regular maintenance and mitigate the incidence of any breakdowns, causing potential delay.  As the works were conducted in an environmentally sensitive area, Centrals adhered to strict biosecurity requirements, including daily entry and exit hygiene protocols required for dieback control.

Harold E Holt Naval Base Remediation Works

After the withdrawal of the US Navy from this facility, Centrals were engaged by the Department of Defence to conduct substantial remediation works on the base.

This project required the removal of tar and hydrocarbons above and below the water table, capping of old landfills on site, and construction of a new Class 5 Landfill facility on the base.  Centrals also undertook bioremediation of hydrocarbons in the landfill, testing for compliance; general cleanup services, and the demolition and disposal of several structures on the base – many of which contained asbestos contaminated material.

Mining

Recovery Dam 7 Facility for Iluka Resources

These tailings storage facility works comprised of: clearing, grubbing and topsoil stripping; foundation preparation; excavation including load and haul of material for the embankments; fill placement; liner anchor trenches; access roads; installation of HDPE liner; installation of concrete anchor block; installation of decant and discharge pumps and pipework; and associated works.

Karara Mine Pioneer Works for Karara Mining

Centrals was the first contractor on site for the ground-breaking and establishment works for the greenfields Karara mine site.

This contract, for the pioneering works, included: construction of mine civil infrastructure; access roads; dams; bulk earthworks and clearing; detailed earthworks and concrete for the 2000-man accommodation village and amenities; pads and hardstands; earth retaining walls; site wide drainage (cut-off drains and sumps); sewer installation; potable and wastewater reticulation installation; traffic signage; pavement markings; road furniture and fencing. Wet hire of plant was also provided to various onsite contractors.

Golden Grove Site Services for MMG

Centrals has been working continuously at the Golden Grove mine site for over 20 years having delivered various work packages ranging from the construction of haul and access roads to tailings dams, concrete works and crushing services.

The following ongoing services are delivered: underground and waste haulage; oversize management and pre-crushing; ROM management and primary crusher feed; the distribution of stores for underground and surface operations; construction, maintenance and repairs of haul and access roads; maintenance of surface sumps; water and dust suppression; and waste and recyclables management.