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BRIDGE & WHARF CONSTRUCTION

High-quality bridge and wharf construction across Australia’s waterways; Experience in marine infrastructure and tidal environments.
Polaris Marine Group is a trusted name in bridge and wharf construction, delivering complex marine infrastructure projects across Australia’s coastline, rivers, and waterways. With a deep understanding of tidal conditions, structural engineering, and environmental regulations, we build resilient and high-performance structures that meet the needs of transport networks, commercial operators, and public amenities. From piling and substructure installation through to decking and handrails, our team manages every aspect of the construction process with care and precision. We work with government authorities, developers, and private clients to deliver projects that are safe, functional, and built to last. Whether constructing a new vehicular bridge, ferry wharf, marina access point, or pedestrian connection, Polaris Marine Group combines civil and marine expertise to ensure seamless outcomes, even in the most demanding conditions.

Marine Bridge Construction

Bridge construction in marine or tidal environments presents a unique set of challenges. Fluctuating water levels, variable soil conditions, and complex access constraints require careful planning and specialist construction techniques. Polaris Marine Group has extensive experience in delivering bridge infrastructure over water, including road bridges, pedestrian walkways, and utility crossings. Our team provides end-to-end services—from site preparation and foundation piling to pier construction, deck installation, and finishing works. We use a wide range of construction plant and marine platforms, including jack-up barges, floating cranes, and custom scaffolding, to safely access the site and complete works efficiently. Our crew is skilled in working under live tidal conditions, coordinating around shipping channels, and delivering to tight deadlines with minimal environmental impact. Our bridge projects often involve staged delivery to maintain public or operational access. We manage this complexity through detailed staging plans, stakeholder communication, and a commitment to safety and quality throughout.

Wharf Construction & Redevelopment

Wharves are vital pieces of marine infrastructure, serving as access points for transport, logistics, tourism, and recreation. Whether a project involves building a new wharf or refurbishing an existing structure, Polaris Marine Group brings decades of experience and proven capability. We construct all forms of wharf infrastructure, including public ferry terminals, commercial loading platforms, marina berths, and service jetties. Our work ranges from small-scale foreshore access structures to large commercial facilities with heavy load-bearing capacity. Every wharf we build is engineered to suit the unique site conditions and operational needs. We take into account tidal ranges, vessel types, environmental factors, and regulatory requirements. Our services include piling, deck fabrication, fender system installation, gangways, lighting, handrails, and safety infrastructure. We also provide condition assessments and remediation services for ageing or damaged wharves. Our team can extend the life of existing structures by strengthening foundations, replacing corroded components, or upgrading surface finishes to meet modern codes.

Integrated Design and Construction

Polaris Marine Group often works under design-and-construct or early contractor involvement (ECI) models. These arrangements allow us to contribute our marine construction expertise during the planning phase, reducing risk, saving time, and delivering more cost-effective outcomes. We collaborate closely with engineers, architects, and stakeholders to refine construction methodology, optimise structural design, and identify logistical efficiencies. Our input helps shape bridges and wharves that are easier to build, more durable in marine environments, and aligned with the project’s environmental and aesthetic objectives. By managing both the design and construction, we take full responsibility for safety, quality, and performance from start to finish.

Specialist Marine Equipment and Personnel

Bridge and wharf construction requires specialist knowledge and equipment—both of which Polaris Marine Group provides in-house. Our fleet includes piling barges, floating cranes, workboats, jack-up platforms, and low-impact access systems. These assets allow us to work efficiently in difficult marine environments, including shallow tidal flats, busy ports, and remote locations. Our construction crews are made up of highly trained marine workers, welders, riggers, divers, and project managers. They are supported by a team of experienced civil and structural engineers who oversee project execution and ensure compliance with Australian standards. We also maintain ISO-certified systems for safety, quality, and environmental management, ensuring our projects meet the highest levels of professionalism and regulatory compliance.

Environmental and Community Considerations

Polaris Marine Group takes pride in its ability to deliver marine infrastructure while protecting surrounding ecosystems and minimising disruption to local communities. We develop site-specific environmental management plans for every project, addressing potential impacts on water quality, marine life, vegetation, and sediment movement. Our team uses low-vibration piling techniques where possible, times construction to avoid sensitive breeding or migration periods, and applies sediment controls to prevent runoff during works. We also ensure waste management, noise control, and marine traffic coordination are part of our daily site operations. Where projects are located in public areas, we engage with local stakeholders to keep them informed and ensure safe pedestrian and recreational access throughout construction.

Proven Experience Across All Project Sizes

Polaris Marine Group has delivered marine bridge and wharf projects of all sizes—from small jetty upgrades to major transport infrastructure. Our clients include local councils, state transport authorities, developers, port operators, and maritime businesses. We have worked in regional areas, urban environments, heritage locations, and sensitive ecological zones. Across all projects, our focus remains the same: deliver durable, well-designed marine infrastructure that performs reliably for decades. With the skills, resources, and marine construction expertise to deliver in full and on time, Polaris Marine Group is the partner of choice for bridge and wharf construction across Australia’s waterways.

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