McConnell Dowell specialise in pipeline, rail, mechanical and electrical maintenance works and capital works programmes across the marine, oil & gas, mining and infrastructure sectors.

We offer an end-to-end service covering the full range of small to large CAPEX and OPEX works such as capital construction works; planned asset maintenance from initial condition assessment, periodic inspection regimes, through to execution of remedial works. We manage shutdowns, perform corrective works and reactive response activities and provide quality and compliance auditing.

McConnell Dowell has a strong electrical capability as part of our broader offering. We have the expertise to self-perform electrical works and also have strong relationships with electrical sub-contractors where required.

We have successfully delivered complex electrical works as part of large construction projects in demanding environments for customers such as ExxonMobil, BP, BHP Billiton, Du Pont and many others.

Our project engineers, managers and electrical partners have specialist skills in electrical design and installation and have achieved industry leading results in safety performance, quality and customer satisfaction.

We have developed strong repeat-business relationships with numerous transport authorities across our operating regions, through the safe and timely delivery of all types of roads and bridges.

We continually explore alternate designs and technical or staging solutions that reduce time and cost for our customers, and we always implement safe traffic and pedestrian management solutions that minimise disruption and maximise safety around our work sites.

As visitors in the community, our stakeholder and communications teams are experts at building close, collaborative relationships with adjacent residents and businesses to avoid surprises and build interest and support in the project.

We've delivered over 160 km of tunnels, outfalls, underground stations, hydropower caverns, and underpasses; moving more than five million tonnes of earth and rock in the process.

Our creative construction approach has seen us successfully pioneer new and innovative technologies; and we are renowned for our capacity to provide fully integrated engineering and construction solutions. 

Our tunnelling and underground expertise encompasses every size, technology and technique including: HDD, Direct Pipe®; micro-tunnelling and pipe jacking; sequential drill and blast; road header; New Austrian Tunnelling Method (NATM) / mechanical excavation; and the full range of tunnel boring (TBM) techniques.

Our geographic reach and multidiscipline capability has seen successful delivery of transport, water/wastewater, power/energy, underpass, utility and mine related tunnels and underground structures.

Throughout the decades, creativity and innovation had been a hallmark of our approach, including:

  • Construction of the first segmentally lined shield tunnel in Singapore in 1975  
  • Introducing pipe jacking technology to Australia, New Zealand & Asia in the late 1970s
  • Constructing the first NATM tunnel in Australia in the 1980s
  • Construction of complex pedestrian underpass tunnels in soft ground commencing in Singapore in the early 1980s
  • Creating an unsurpassed world record in open TBM (size and type class) production for the Blue Mountains Sewage Transfer Scheme during the 1990s
  • Delivering multiple award-winning hydropower projects and desalination plants during the 2000s
  • Undertaking major project components on all four of the major LNG projects in QLD and PNG during the LNG Boom (QCLNG, APLNG, GLNG & PNG LNG)
  • Delivery of the southern hemisphere’s current largest diameter TBM driven tunnel in 2017
  • Setting a new world record (surpassing the previous distance by 500m) for Direct Pipe® technology in 2018, and then again in 2020 (2021m single drive);
  • Seven successful underwater marine TBM recoveries 
  • Completing the longest large diameter single pipe jack drive through continuous hard rock conditions world-wide in 2020 (1273m x 3m OD)

From the formation earthworks to the passenger facilities, we offer our rail customers a complete design and construction service that maximises safety, minimises interface risks and delivers a seamless project solution.

Mobilising our own rail plant and people, we’re experts at managing tight track occupation/possession windows, and working within constrained rail corridors to deliver new network infrastructure - safely and with zero unplanned impact.

Beyond the construction of the asset, we also have the rail maintenance and asset management knowledge and systems to extend the lifespan of any type of rail network. 

Our Rail Plant Yard

Our rail plant yard, located in Sunshine North, Victoria, is equipped with both standard and broad gauge tracks. The 650m long site has direct access to the mainlines of both the metropolitan and interstate networks. The facility can provide safe and secure storage and materials handling services for freight operators, as well as assisting companies moving equipment and materials across the network. Efficient and flexible materials handling is provided through two overhead gantry cranes.

The on-site workshop provides flashbutt welding services for long-welded rail, in addition to the full scope of rail plant asset management and maintenance services.