Marine Construction Tasmania: Expert Coastal & Offshore Engineering

Bellerive Stormwater Upgrade
Tas Marine delivers trusted marine construction in Tasmania, including jetties, marinas, dredging support and shoreline protection. Talk to us now!

With thousands of kilometres of shoreline, Tasmania’s coastline is both an economic asset and a demanding environment for infrastructure. This scale and exposure drive the ongoing need for ports, jetties, marinas, dredging support and shoreline protection, and marine construction in Tasmania must deliver safe, compliant, long-life assets that perform in changing coastal conditions. Tasmania’s coastline is estimated at 4,872 km when islands are included, highlighting why marine infrastructure is essential statewide.

What Projects Define Modern Marine Construction in Tasmania

Today’s marine builds are driven by access, safety, durability and whole-of-life value. The most successful projects combine robust design with practical construction methods, reliable marine plant, and a delivery team that understands working over water.

  • Ports, Wharves and Commercial Marine Facilities – Ports and working waterfronts often need upgrades to improve berthing safety, vessel access and day-to-day efficiency. Works commonly include piling, over-water structures, fender systems and staged construction so operations can continue. Designs must allow for tides, vessel loads, impact forces and corrosion.
  • Jetties, Pontoons and Public Access Structures – Community marine infrastructure includes public jetties, pontoons, access walkways and boat ramps that support safe, reliable access for recreational and commercial users. Strong results rely on durable materials, safe design, maintainable layouts and construction methods suited to tight foreshore sites. A practical example is the Bellerive Public Pier, which reflects the importance of safe access and high-performance materials in a busy waterfront setting.
  • Marinas and Berthing Solutions – Marina projects combine piling and moorings, pontoons, breakwater elements, integrated services and safe access. Long-term performance depends on precise installation and design for wind, waves, and changing water levels. Our experience in marina works can be explored through the Bellerive Yacht Club Marina project, demonstrating our capability in complex berthing environments.
  • Dredging Support and Channel Maintenance – Dredging is often essential where sediment movement reduces depth in marina basins, port approaches, and navigation channels. From a project perspective, dredging support can include marine plant mobilisation, temporary works, spoil handling, and site controls that protect water quality. It also requires careful planning around weather windows, vessel traffic and environmental requirements. For a relevant example, see the Triabunna Marina and Approach Channel Dredging project.
  • Shoreline Protection and Foreshore Stabilisation – Shoreline works such as seawalls, revetments, and scour protection help safeguard assets and maintain access. The best outcomes come from understanding local coastal processes and designing for current conditions and future risks, because poorly matched solutions can push erosion down-drift.

Marine Construction in Tasmania: Why Local Conditions Demand Specialist Engineering

Tasmania’s marine environment can change fast, with swell, strong winds, tides and sediment movement placing heavy demands on coastal and offshore structures. Marine projects also involve tight logistics, including limited access, strict safety controls and narrow weather windows. Specialist contractors reduce risk through disciplined planning, constructable staging, appropriate piling methods, safe navigation management and durability-focused design, helping clients deliver reliable outcomes for marine construction in Tasmania.

Why Choose Tas Marine for Marine Construction in Tasmania

Tas Marine supports waterfront and marine infrastructure delivery with practical expertise across piling, jetties, marinas, dredging-related works, and marine maintenance. We understand the realities of building in live coastal environments and the importance of safe execution, clear communication and dependable delivery.

Start your marine construction in Tasmania project with us from day one. We can assess constraints, confirm constructability and set a clear path to delivery.

Contact us today to request a consultation.

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Bellerive Stormwater Upgrade

Client: City of Clarence

Date Completed: May 2025

Total Contract Sum: $1.2M

Description of works:

Tas Marine delivered Clarence City Council’s largest infrastructure project to date, including constructing a temporary sheet pile cofferdam across Bellerive Beach to enable excavation for a new stormwater outfall. Over 200 tonnes of steel were installed using specialised equipment. The new upgrade reduces flood risk to surrounding residential areas and supports long-term coastal resilience.

New Boat Stack Seawall

Client: Williamstown

Date Completed: Current

Total Contract Sum:

Description of works

Tas Marine Construction has been contracted to deliver a 200-metre long break wall at Williamstown.

The combination wall design consists of 16mm sheet piles with rock-socketed piles installed at every second sheet. With challenging hard basalt ground conditions, Tas Marine is applying its specialist hard rock drilling expertise to drill and concrete the piles into position. Completion is scheduled for late 2025.

Details of Innovations and extra value for money

Client Contact:

Travel Lift Jetties

Client: Royal Yacht Club of Victoria

Date Completed: Current

Total Contract Sum: 

Description of works

Tas Marine Construction was awarded the competitive tender to replace the Royal Yacht Club of Victoria’s aging travel lift jetties. 

Works include demolition of the existing jetties, installation of new piles, and the supply and fit of steel superstructure and precast deck units. The project is progressing on schedule and will be completed ahead of the arrival of the new travel lift in mid-October.

Details of any  Variations

Details of Innovations and extra value for money

Client Contact:

Waikawa Breakwall (NZ)

Client: Port Marlborough

Date Completed: Current

Total Contract Sum: $12.2M

Description of works

Construction of 500m long piled break-wall in up to 18m water depth. Precast wave panels are 8m deep weighing 25t. Total weight of structure 6000t.

Details of any Variations

Variations for additional PDA testing, pile lengths, pull out tests, acceleration and pile fins were approved and paid. Some painting was deleted and client was given a discount.

Details of Innovations and extra value for money  
Raker piles were not achieving tension capacity at contract lengths. We used pile offcut steel to manufacture spiral welded fins on the bottom of the piles which increased tension capacity.
Client Contact: Grant Beatie: +64 21239244

Bellerive Yacht Club new Marina arm

Client: Bellingham marine Australia
Date completed: Feb 2025
Total contract sum: $380,000
Description of works:
Supply and install steel piles with poly sleeves into rock. Take delivery of pontoons and assemble on water. Fit abutment and gangway. Install coverboard and buffer.
Details of Innovations and extra value for money:
TMC was able to use our new 40t crane for the duration to save hiring a crane. The trucks were often delayed so would have meant lots of variation charges if we had to hire a crane extra times
Client Contact: Mr Marc Carney