Dredging & Civil Construction

Extensive Dredging Experience

Over our many decades of contract dredging experience, Neumann Contractors have completed numerous significant dredging projects, often utilising multiple dredges on the one site:

  • The Kooragang Coal Terminal in Newcastle,
  • The Pacific Highway, Chinderah Bypass, embankment filling,
  • Lake Kawana rowing course, Sunshine Coast,
  • Hellyer Gold Mine dredge hire,
  • The Port Botany Expansion Project, and
  • The Sydney Desalination Pipeline Crossing project in Botany Bay, to name just a few.
Maroochy Foreshore Replenishment Dredging
Currumbin Creek Dredging Underway

Our Proud History

Neumann Dredging is a part of the family-owned Neumann Group of Companies founded on the Gold Coast in the 1950s.  The Neumann Group of Companies has an annual turnover of $300M and incorporates other entities, including:

  • Neumann Steel – Steel reinforcing products,
  • Nucon – Ready-mix concrete,
  • Nucrush – Quarrying and aggregates
  • Riversands – Specialty sand products, and
  • Currumbin Minerals – Mineral sand processing.

Innovative Engineering

Neumann Dredging’s engineering innovation and technical expertise have provided the complete dredging solution for many diverse projects, throughout Australasia, over many years. Neumann Dredging has:

  • Designed, built, maintained and operated its dredging equipment with the Company’s team of experts,
  • We have designed and manufactured winches and winching equipment for various industries, including; Mining, Marine, Hire, Communications etc.

Because we control the equipment design and build processes in house, we are in a unique position to deliver timely innovations and the flexibility to meet the dredging project challenges as they arise.

Dredge 8
Superior Coal

Dredge and booster pump hire

Neumann Dredging has a selection of Cutter Suction Dredges and Booster Pumps available for hire.  We typically offer a dry-hire arrangement, where we supply the operators for an initial period to train your existing staff.

All our high-quality hire equipment is built, serviced and overhauled in-house.  You can be assured that all hire equipment will be reliable and be a cost-effective solution to your dredging requirements.

Hire equipment includes: dredges, booster pumps and piping, 250 – 500mm

Reliability and Dependability

Neumann Dredging has been in the dredging industry for over 60 years, during which time many have tried and failed.  There are good reasons for Neumann’s success:

  • We are part of a large and very successful Family Group of Companies,
  • We finish what we start,
  • We work with our clients, and
  • We are unique.

We Solve, We Innovate, We Deliver!


Featured Dredging Projects

Ernest Henry Mine Tailings Dredging

Tailings Removal/Transfer,
Tailings Reprocessing,

Ernest Henry Mining commissioned our 300mm CSD Nu Compact to reprocess/remine the tailings from the Tailings Storage Facility (TSF) to recover magnetite. The Nu Compact pumped the reclaimed tailings via a 1000 metre long HDPE pipeline directly into a processing circuit in which the magnetite was concentrated. The dredge operated on a 24/ basis while maintaining a consistent feed density to the processing plant.

Hellyer Gold Dredge Hire

Dredge Dry Hire,
Mud/Silt/Sediment Removal / Relocation.

Hellyer Gold Mines hired a Neumann Contractors' designed and built 250mm cutter suction dredge, the ‘Nu-Investigator’ for 12 months to supplement the operations of their existing dredge in the site's tailings ponds. The hire agreement was a dry hire arrangement with Neumann Contractors providing experienced operators in the initial phase to train Hellyer’s operators in running the dredge.

Kingscoast Estate Project

Resource Mining,
Hydraulic Sand Transfer,
Civil Works.

The project was to hydraulically place 370,000 m3 of sand to raise the surface level of the Kingscoast Estate by 3 metres. The team dredged the sand from an adjacent sand quarry by the Nu Bounty, a 450mm bucketwheel cutter suction dredge combined with a 500mm, 2,000 hp booster pump. The slurry was pumped distances up to 2,000m through a 560mm poly pipeline to the estate. We achieved considerable savings and advantages over traditional methods.

Sydney Water Desalination Project

Capital Works Dredging,
Ports and Harbour,
River and Waterways Dredging.

Dredging works associated with the Botany Bay pipeline crossing, which was part of the construction of Sydney’s DeSal plant at Kurnell, Southern Sydney. When completed water from the desalination plant will be piped to the City Water Tunnel at Erskineville. This is part of the Potts Hill Water system, which services areas south of Sydney Harbour, to Bankstown in the west and Sutherland in the south.

Australian Owned Badge

100% Australian Owned

More than 60 Years Dredging Experience


We have a reputation for completing demanding dredging projects by utilising over 60 years of experience, highly qualified staff, engineering expertise and innovation to provide cost-effective solutions to overcome challenges.


We are committed to having a safe and healthy work environment for all team members and all associated others.
The continuous improvement of our occupational health and safety in our dredging and associated activities are our utmost priority.


We have a comprehensive Quality Management System in place. We customise the system to suit each dredging project we undertake to deliver quality outcomes and satisfy our clients' standards and project specifications..


We are continuing to meet the challenges of sustainable construction practices in the twenty-first century. Our solid relationships with both expert consultants and regulators are based on a unique approach to meeting the goals of each project.

Providing Innovative Dredging Solutions for:

and many more...

Client Feedback

South Wavebreak Island Channel

Navigational Channel Maintenance, Beach Nourishment.

“Please pass on my thanks to your team. They did a great job, accommodated all our requests to board the vessel, provided quality feedback to Emma’s environmental questions and did the job quickly and efficiently which minimised impact to the stakeholders.

Additionally, the change you proposed to the placement methodology (going south to north) was the correct approach. I’m very glad we did not go north to south.

I look forward to working with Neumann’s in the future on other campaigns.”


Ramsgate Baths Project

Beach Nourishment, Replenishment Works, Hydraulic Sand Transfer,

“Thanks for arranging the quick collection of the Protective Fencing around the above Works and I am pleased to advise the Baths were reopened to the Public on Thursday. In fact, the Public were waiting just behind your Contractors so as soon as the last panels were removed, they charged into the Pool Area.

I wish to thank you and especially Josh for undertaking this project which have been overwhelming endorsed by the Public. I have received nothing but compliments from the Public and our Councillors on this Project.

Unfortunately, I could not hold you here for more works once you were set up but now knowing how long it takes to set up hopefully in the not too distant future we can engage Neumann Dredging again for further beach nourishment works along our foreshore.”


Kinross Estate - Stage 9

ReclamationWorks, Hydraulic Sand Transfer, Civil Works, Capital Works.

“On time with no operational management issues during the works. Very easy contractor to manage as communication was forthcoming and easy. The contract was completed ahead of contracted schedule.

Open, frank and transparent communication made the optimum solution possible.”


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