Prepared for Prepared for Seymour Whyte
May 2026
From remote resources and energy projects to city-shaping infrastructure, we've built thousands of quality assets and facilities.
Engineering-led, our expertise has grown steadily to span building, civil, electrical, fabrication, marine, mechanical, pipelines, rail, tunnel and underground construction..
We do that through delivering projects that connect, sustain and enhance communities, and through providing career opportunities that challenge, reward and grow our people.
We also have five company values that guide our behaviours and decisions. Our values are:
We also understand that construction today is as much about community and sustainability as it is about concrete and steel. Our unwavering objective and commitment is to deliver what we promise to our customers, while protecting and enhancing our people, the community and the environment.
Our services encompass the complete project lifecycle—from early concept design to commissioning and ongoing maintenance. We tailor each solution to suit our customer's specific project objectives and preferred delivery approach.
Urban projects have included construction of two new recreational wharves at Kamay (Botany Bay); the design and installation of complex subsea pipelines for the Sydney Desalination Plant; the transformation of Penrith's CBD through the Mulgoa Road upgrade; and the refurbushment of the Overseas Passenger Terminal in the iconic Circular Quay.
Regionally, the company has constructed a new LNG gas import terminal and a tug boat facility at Port Kembla in Wollongong; upgraded the Hume Dam in Albury; duplicated the Pacific Highway between Kempsey and Kundabung; and supported ARTC with track upgrades in the Hunter Valley.
From wharves and jetties to ocean outfalls, breakwaters, and submarine pipelines — we bring coastal confidence to every project.
Our modular approach to construction has helped create productive ports for clients like Rio Tinto, FMG, Vale, and BHP, where over 1.2 billion tonnes of iron ore are shipped annually from wharves we built.
We thrive in complex, operational environments — delivering innovative temporary works and safe, efficient methods that protect people, environment, and productivity. From purpose-built barges to proven marine systems, we engineer safe harbours with precision and care.
At McConnell Dowell, we don’t just build marine infrastructure — we deliver it with certainty, creativity, and a commitment to results.
Engaged by Squadron Energy, one of Australia’s leading renewable energy companies, we helped establish a new gas import facility at Port Kembla to bring flexible additional energy supply to the eastern seaboard of Australia.
The facility, built on an abandoned coal export terminal, has the capacity to supply more than 70% of NSW’s gas needs.
We successfully delivered two new wharves at La Perouse and Kurnell on Botany Bay (Kamay) for the NSW Government. These modern structures replace the original wharves, which had been in operation from the 1890s until 1974, when severe storms rendered them beyond repair.
The Kurnell site holds deep historical and cultural significance. As the first landing place of Captain James Cook, it is a key part of Australia’s colonial history. Equally important, the area remains a place of enduring cultural heritage for First Nations people. To honor this, the wharf designs incorporate large-scale artworks by local Aboriginal artists, creating a meaningful connection to Country.
Working for the Port Authority of New South Wales we delivered a series of improvements to the Overseas Passenger Terminal (OPT), located in the iconic Circular Quay area of Sydney Harbour.
Built in 1960, the OPT is located in one of Australia’s busiest waterways. Over time, natural processes and vessel activity have caused scouring, accretion and movement of materials on the seabed around the terminal’s wharf.
Improving marine infrastructure for nine Pacific Island countries as part of the Australian Government’s Pacific Maritime Security Programme (PMSP) fits perfectly with our vision: Providing a Better Life.
This project also demonstrated our ability to deliver logistically challenging marine projects across the Pacific.
We refined the initial concept design and constructed a new outer wharf structure at HMAS Coonawarra in Darwin to support the Australian Defence Force (ADF). The project involved the construction of a new 250 m long wharf and two approach jetties.
While the final structures are simple in their geometry and configuration, the site location and operational requirements were challenging.
In one of the first Early Contractor Involvement (ECI) contracts in Australia, we designed and delivered the Techport Australia Common User Facility - a new state-of-the-art shipbuilding and maintenance complex on the Port River at Osborne, South Australia. We delivered it in joint venture with our building company, Built Environs (the MDBE JV).
The project was rolled out in two stages. In the first stage, our team worked in collaboration with design and technology partners and DefenceSA to develop the final design and risk adjusted price.
We designed, constructed and commissioned a new jetty and associated handling facilities for Petronas, as part of their RAPID (refinery and petrochemical integrated development) project in Malaysia.
The main element of our scope was a Solid Products Handling Jetty, comprising of a 1300 m long trestle, 710 m long jetty head, two container berths and a sulphur loading berth.
We delivered the marine works for BP’s LNG expansion project in Tangguh, located in the remote area of Bintuni Bay in West Papua. Our customer, PT Saipem Indonesia, was part of an EPC joint venture involving Chiyoda-Saipem -Tritati -SAE.
The overall expansion project comprised a full additional natural gas liquefaction train, including an onshore receiving facility (ORF), an additional Boil of Gas (BOG) recovery, utilities, flares, and all infrastructure to support the facility.
We were engaged to design and construct an eight-dolphin berthing facility, a pipeline end manifold (PLEM), and a new diesel supply pipeline for PT Petro Storindo Energy - a joint-venture between Oiltanking, BP and Kaltim Prima Coal.
Our scope of work included the dolphin mooring system (4 berthing and 4 mooring dolphins); a 3 km long, 20 inch diameter subsea/onshore pipeline; a subsea control unit; a PLEM (Pipeline End Manifold); a PIG Launcher and onshore PIG receiver; and miscellaneous pumps and tanks for the fuel supply. The line terminates at a diesel storage terminal that supports the operations of the Kaltim Prima Coal mine.
McConnell Dowell is a leading international pipeline contractor. We have constructed over 20,000 km of new pipe networks across more than 200 projects including gas, petroleum, water and slurry pipelines. These pipelines help drive economic and social progress across Australia, New Zealand, and South East Asia.
We are experts in large diameter pipeline construction and have delivered gas pipelines up to 1300 mm (50”) in diameter and water pipelines up to 1800 mm (70”) in diameter. Our in-house specialist skills and plant enable execution of HDD, micro-tunnelling, marine pipe pulls, pipe bridges and other complex crossing solutions.
We constructed the Lake Way Gas Pipeline (LWP) and the Karlawinda Gas Pipeline (KGP) projects for APA Group in Western Australia.
The LWP pipeline is located 15 kilometres south of Wiluna and transports natural gas from APA’s Goldfields Gas Pipeline (GGP) to SO4’s Lake Way facility. SO4 aims to become a major exporter of Sulphate of Potash and the LWP pipeline provides gas for fuelling power generating facilities and other equipment within their process plant.
After extensive pre-planning and a fast mobilisation, we constructed the Agnew Gas Pipeline Project for APA Group in the south-southwest of Western Australia. The new pipeline supplies gas to the Agnew gold mine site to supplement the mine’s renewables-fuelled power supply.
Our scope consisted of the construction of a 25 km long, DN150 mm, dual layer FBE coated, AS2885 compliant, high pressure natural gas pipeline, along with the tie-ins to the swan necks at the above ground Kyarra Offtake Station and the Agnew Delivery Station.
We constructed the Murrin Murrin Looping Project for APA Group, east of Lenora in Western Australia. The objective of the project was to increase the capacity of the Murrin Murrin Lateral to enable APA to service future downstream customers.
Our scope consisted of the construction of a 13.8 km long, 200 mm diameter high pressure gas pipeline, along with the tie-ins to an existing above-ground offtake station. The pipeline runs from a connection off the existing Murrin Murrin Lateral.
Following successful completion of an Early Works contract for the APLNG project, MCJV, a joint venture between ourselves and Consolidated Contracting Company Australia Pty Ltd, was awarded an EPC contract for delivery of 360 km of the main export pipeline, a 57 km lateral pipeline, and associated facilties.
The overall APLNG project included the development of substantial coal seam gas resources in the Surat and Bowen Basins. The key elements of the project were the transmission pipeline, subsea crossing (Narrows Crossing) and a multi-train LNG facility on Curtis Island, near Gladstone.
We constructed a 145 TJ per day gas compression and water treatment hub, with associated infrastructure and water gathering lines, at the coal seam gas fields north east of Roma in Queensland. The infrastructure enabled collection and processing of gas for delivery via an export pipeline to an LNG processing plant on Curtis Island, off Gladstone.
The large and complex project required a multi-disciplinary approach, with a focus on facilities for gas compression, power generation and water treatment, in addition to pipeline construction.
In joint venture with Consolidated Contracting Company (the MCJV), we designed and delivered the Narrows Crossing project, one of the most diverse and challenging pipeline projects ever completed in Australia.
Our scope involved the connection of the QCLNG and APLNG 42” export pipelines from their termination points across the Narrows Channel to the LNG plant on Curtis Island. We also delivered the QCLNG Delivery Station.
It's the technical problems and challenges solved behind the scenes by people empowered to think creatively and work collaboratively. It’s the alternative idea or innovation that saves time, reduces cost, makes us safer, and delivers more value.
It might not always be evident when you look at the end product, but it's there, inside every McConnell Dowell project.
This helps them identify and address potential issues at the earliest stages of project development, effectively eliminating issues at their genesis leading to lower costs and delays once we start on site.
On site, we use digital tools like drones for surveying, and GPS tracked plant to monitor and improve safety and efficiency.
We've embraced the circular economy, renewed local ecologies, reconnected habitats, and lowered energy use across our projects in line with our {tip title="Carbon Reduction Roadmap" content="
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We set energy and waste reduction targets on every project and are committed to making our environmental footprint as small as possible, as showcased in the recent case studies below.
We foster our 'Home Without Harm' safety culture through robust processes, effective systems, and by recognising and rewarding safe behaviours.
Our Site Safety Managers are always on our project leadership teams, ensuring safety is prioritised in all site activities. Every team member has clear safety responsibilities, aimed at protecting themselves, their colleagues, and the community.
We're also leading our industry in the adoption of new safety technologies, like virtual reality plant simulators and AI-enabled blind spot elimination. Check out the case studies below for more information.
Underpinning it all are our Safety Golden Rules. Built on our long-term collective knowledge and learnings, they are specifically targeted at preventing fatalities and serious injuries.

Our approach is clearly articulated in our Sustainability Policy.
We're about action not just aspiration. Our ambitious but achievable {tip title="Carbon Reduction Roadmap" content="
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Thank you for taking an interest in McConnell Dowell's skills, capabilities and approach. Additional information is available on our website, including additional project case studies.
Contact us through the link(s) below for advice or assistance with your project.
Toby Herniman
Pre-Contracts Manager - NSW & ACT
M: +61 478 946 769
toby.herniman@mcdgroup.com LinkedIn