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MARINE ENGINEERING

Boat Building
Polaris Marine Group provides expert marine engineering services to support the planning, design, and delivery of complex maritime infrastructure. With a focus on constructability, safety, and environmental performance, our team partners with contractors, asset owners, and government agencies to deliver marine works that perform over the long term. From structural design input and temporary works to construction methodologies and technical advice, our marine engineers offer the experience and insight needed to solve challenges before they reach the water. Whether working in tidal estuaries, urban harbours, or remote coastal environments, we approach every project with a deep understanding of the unique conditions that shape marine construction.

Project Summary

Key Achievements

Comprehensive Engineering Capabilities

Our marine engineering services cover the full project lifecycle, from early-stage planning through to construction support and completion documentation. We are regularly engaged to support: Wharf, jetty, and berth construction Pile design and driveability assessments Sheet piling and retention systems Dredging methodologies and sediment control Rock wall and scour protection Floating structures and mooring systems We provide detailed construction methodology statements, temporary works designs, barge stability calculations, and lifting studies as part of our engineering scope. Our goal is to ensure that every marine asset is constructible, compliant, and optimised for performance and safety.

Constructability and Temporary Works

A significant part of marine engineering involves making sure designs can actually be built in the environment they are intended for. Polaris Marine Group supports contractors and designers with constructability reviews and temporary works design. This includes the design of cofferdams, temporary jetties, sheet pile walls, and support systems for excavation or piling activities. We ensure that these structures are not only safe and effective, but also efficient to build and remove. Our team accounts for tidal impacts, floating plant access, load transfer on temporary structures, and site-specific risks. We also review staging plans and marine logistics to make sure equipment mobilisation, crew access, and barge positioning are all feasible under real site conditions.

Marine Plant and Methodology Advice

With our own fleet of marine plant and a highly experienced construction team, Polaris Marine Group brings practical insight to every engineering challenge. We work with clients to develop methodology options that are safe, compliant, and suited to the available resources. This includes input on pile installation techniques, dredge head selection, environmental controls, and sequencing across marine and land interfaces. Our advice is grounded in real-world delivery and can help reduce risk, limit rework, and improve project outcomes. We also assist with the selection and certification of marine equipment, such as cranes, barges, anchors, and temporary access platforms.

Integration With Marine Construction

Engineering support is more effective when it’s fully integrated with marine operations. At Polaris Marine Group, our engineering team works side by side with our construction crews, ensuring that designs reflect field conditions and that any issues are resolved in real time. We deliver complete marine construction packages that include engineering, project management, and execution. This integrated model streamlines communication, reduces handover gaps, and accelerates decision-making. It’s an approach that leads to better coordination, fewer delays, and safer outcomes. We also support other contractors with engineering-only engagements, offering flexible solutions to suit the scope and structure of your project.

Safety and Environmental Compliance

Marine engineering must meet rigorous standards for both safety and environmental protection. Polaris Marine Group ensures every design and methodology is assessed against these standards, including: Floating plant stability and access control Underwater noise mitigation Fauna protection and sediment containment Safe lifting, diving, and over-water work procedures Waste management and spill response planning We prepare engineering documentation that supports approval processes and stakeholder engagement, helping clients secure permits and maintain regulatory compliance.

Project Experience

Polaris Marine Group has delivered engineering services across a wide range of projects, from urban maritime upgrades to remote coastal installations. Examples include: Wharf construction methodology for a metropolitan ferry terminal Temporary works for sheet piling in a tidal river Dredge planning for a navigation clearance project Rock wall stabilisation and scour protection in exposed coastal areas Lift planning and crane barge selection for a marina rebuild This experience informs our design thinking and gives us the ability to respond effectively to project-specific risks.

Why Choose Polaris Marine Group?

We combine deep marine engineering expertise with practical construction knowledge and in-house marine resources. Our difference lies in our ability to provide engineering support that is constructible, adaptable, and tailored to the unique conditions of marine work. We offer: Qualified marine engineers with construction experience Integration with marine plant and logistics Responsive service and fast mobilisation Proven delivery across ports, waterways, and coastal sites Whether you’re developing a new wharf, managing dredging approvals, or designing temporary marine works, Polaris Marine Group has the capability and experience to support your project with confidence.

PROJECTS

SEE US IN ACTION

Manton Dam

Polaris Marine Constructions were engaged by Exact Contracting to provide a modular crane barge service at the Dam wall at Manton Dam to deliver the replacement of internal valving and upgrades to the infrastructure of the Intake tower.

Nelligen Bridge Marine Support and Demolition Contract

Polaris Marine Group played a key role in the Nelligen Bridge project, providing overwater support for construction before demolishing the 7-span, 5,000-tonne bridge. The in-house demolition was incident-free, using a suspended work deck with geotextile and drainage to capture debris. Materials were processed on-site and recycled. This project highlighted Polaris Marine’s expertise in complex marine demolition within sensitive waterways.

Seabed Services Pipe Line Deployment

Deploy 3 service pipe lines on the sea floor between Garden Island and Fort Dennison and cover with precast grout mattresses.

Fort Denison – Ferry Wharf

This project included wharf demolition, sea wall remediation, pile installation, concrete works, and the installation of a new pontoon with electrical connections.

Circular Quay – Western Promenade – Soffit Concrete Repairs

This project involved concrete remediation works, including hydro-blasting, shotcrete application, bar reinforcement, protective coatings, and concrete cutting, with site set-up, exclusion zones, and sound curtain installation to ensure safety and minimal disruption.

Manly Boat Shed – Pontoon & Jetty Replacement

This project involved constructing a pontoon, gangway, and timber jetty, including piling, demolition, and electrical connections, to deliver a durable marine access solution.
SEE MORE POLARIS PROJECTS

TESTIMONIALS

HEAR FROM SOME
OF OUR CLIENTS

★★★★★ 5/5
“Polaris are awesome to work with, they make landscaping jobs with tricky access a breeze.”

Johnny L - Distinct Landscapes

★★★★★ 5/5
“The attention to detail provided by PMC during the project could not be faulted. Execution, safety, onsite management and the finished product were at a very high standard. Communication throughout the project from PMC Supervisors and Project Manager were regular and accurate. This enabled Thales to understand daily activities, problems and overall progression at every stage. Ultimately, the professionalism shown by PMC through all aspects of the project, enabled for a successful end product to the Commonwealth. I can’t thank Dane and the PMC team enough for the way the project was ran, start to finish.”

Jake Duncombe, Project Manager

★★★★★ 5/5
“Polaris were an exceptional contractor to work with throughout this project. They were fluent in communication, timely, reliable, nailed the quality of work and went out of their way to be flexible with Thales needs. They have a positive and healthy working relationship with Thales.”

Owen Gardner, Project Manager

★★★★★ 5/5
“I have had the pleasure of working with Polaris for the last couple of years, particularly with transporting vehicles for events, deliveries, and contractors. Their Team is professional and reliable, from their Operational Team, Cookie & Jay, to their Skippers and deckhands are incredibly efficient, even under tight event schedules. What really stands out is their attention to detail and commitment to customer satisfaction. Such as accommodating last-minute changes, they always go the extra mile to make sure everything runs smoothly, giving us peace of mind. Over the years we have built a great relationship/partnership with Polaris and we look forward to continuing to work with them for years to come.”

Keighley O, Sydney Harbour Trust

GET IN CONTACT

If you need to tow it, show it, build it, push it, deliver it, lift it or salvage it over water; please complete this form and one of our team will be in touch.

Gate 2, James Craig Rd, Rozelle NSW 2039

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Phone: +61 2 9563 8333
Emergency Phone: +61 (0) 418 231 916

[email protected]

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Gate 2, James Craig Rd, Rozelle NSW 2039
[email protected]
Phone: +61 2 9563 8333
Emergency Phone +61 (0) 418 231 916
CERTIFICATION
BIMCO Certified
Certifications