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Pipelines & HDD

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McConnell Dowell operate a specialist pipeline business unit that assists clients to develop and deliver Oil & Gas, Water and Slurry pipeline projects and associated facilities.

When it comes to pipelines, McConnell Dowell like to think big with over 200 projects delivered to date, totalling over 30, 000km across Australia, New Zealand, Asia and the Middle East.

With over 20 million manhours worked in the past five years and 30 industry awards, including the Safety and Environmental Award presented by the Australian Pipeline Industry Association (APIA), we're the first and safest choice for clients around the world.

We have delivered gas pipelines up to 1300mm (50") in diameter and have dealt with the complexity of water pipelines up to 1800mm (70") in diameter.

We tread lightly too.  McConnell Dowell's projects respect the environment and have minimal impact on the world around us: we bring positive change, not negative sentiment.  Working safely at all times, we design the scope of work to suit the challenge, using innovative techniques to provide clients and communities with the solution that is right for them.


Some of our notable pipeline projects include:

Oil & Gas Projects:

  • QCLNG Export Pipeline and Collection Header, Qld, Australia
  • APLNG EPC Pipelines, Qld, Australia
  • GLNG Upstream Roma Hub and Pipelines, Qld, Australia
  • Dampier to Bunbury Natural Gas Pipeline Looping Stage 5B, WA, Australia

Water Projects:

  • Adelaide Desalination Transfer Pipeline (ADTP), SA
  • Southern Regional Water Pipeline (SRWP) Project, QLD, Australia
  • Northern Pipeline Interconnector (NPI), QLD, Australia
  • Northern Pipeline Interconnector (NPI) – Stage 2, QLD, Australia
  • Water Delivery Alliance (Sydney Desalination Pipeline), NSW, Australia

Horizontal Directional Drilling (HDD)

We pride ourselves on being a local specialist with international expertise in delivering technically challenging HDD and micro tunnelling projects.

Some of our notable HDD projects include:

  • QCLNG Narrows Crossing, Qld, Australia
  • Fourth Transmission Pipeline Interconnecting Pipelines Project, Thailand
  • IRPC Natural Gas Pipeline, Thailand
  • Dampier to Bunbury Natural Gas Pipeline Looping Stage 5B, WA, Australia