Primus Line® advances in Australia

It goes without saying that infrastructure for water supply will always be relevant.  

However, much of this infrastructure is ageing, with leaking or even shut down pipes underlining the necessity for renovation.  

Usually, these pipes are renewed or revitalised by dig-and-replace, but over the past few years, utilities worldwide are looking more and more for trenchless solutions.  

The advantages are clear: shorter installation times, fewer impacts on the environment and reduced costs.  

Primus Line® – engineered and manufactured in Germany – is one of these solutions, consisting of a flexible, aramid-reinforced liner and special developed end fittings.  

Since Sydney Water undertook its first Primus Line project four years ago, nearly a dozen have followed, along with the projects for other utilities, councils and mining companies throughout Australia.  

These include Urban Utilities, Hunter Water, Unity Water and Shoalhaven City Council, to name just a few.  

Primus Line technology is currently the sole solution for the rehabilitation of pressure pipelines on Sydney Water’s list of products deemed to comply with pipeline rehabilitation.  

In cases of water spilling from damaged drinking water pipelines or sewage pressure lines in hard to access areas, such as beneath a creek, rapid response is essential.  

This is why some Australian pipeline operators already have Primus Line material on stock to present fast remedy in emergency cases, with Primus Line now found in even the most remote corners of Australia.  

In Cape Lambert, Western Australia, more than 1.5 km of drinking water pipelines have been rehabilitated using the product for Rio Tinto at a site of cultural heritage sensitivity.  

Other customers from the private sector, including Melbourne Airport, have already profited from the German trenchless renewal system, but Primus Line is used for more than just the rehabilitation of potable water mains – the range of completed projects extends to sewage pressure pipes, recycled water or raw water mains as well.  

Moreover, the Primus Line has been used on projects deemed nearly impossible. Examples include a 3-in-1 solution for Hunter Water (three Primus Liners DN 450 installed in a DN 900 pipe) and a vertical pipeline of more than 100 m for Sydney Water.  

To plan and calculate the projects, Primus Line relies on its in-house engineering team that gets to work immediately from project start, ensuring the Primus Line technology is the right product to carry out the job quickly and efficiently. 

For more information visit the Primus Line website.  

Addtech acquires ImpulseRadar

Winn & Coales acquires coating technology

Based in San Antonia, US, Amcorr are the formulators and manufacturers of the Viscotaq viscoelastic protective coating technology, used for corrosion prevention and sealing applications on vital infrastructure.  

Amcorr President and Co-Inventor of Viscotaq Edwin Welles said the brand was honoured to be a part of the Winn & Coales family. 

“A similar business culture, with a privately-owned structure and a technology driven mentality was a natural fit for us,” he said.  

“The acquisition will give Amcorr the opportunity to grow rapidly, both nationally and internationally and above all, guarantee dedicated service and supply to existing and future clients across the globe.” 

Winn & Coales Chairman Chris Winn said the acquisition was exciting for the company. 

“The Viscotaq product line enhances and complements our existing range of coatings, which are already well established in the market,” he said. 

“We are now able to offer all corrosion prevention technologies to our customers, and we look forward to building on our leading brands further with our new colleagues at Amcorr.” 

Denso Australia has offices and warehouses throughout Australia and is a wholly owned subsidiary of Winn & Coales International. 

For more information visit the Denso website.  

SA Water goes green on water pipeline

SA Water has installed more than 7,300 solar panels at the pipeline’s second pump station, with the array to generate approximately 5,224 MW hours of energy each year.  

Running more than 50 km, the pipeline delivers drinking water between the Murray River and Barossa Valley, and SA Water Senior Manager Zero Cost Energy Future Nicola Murphy said it requires significant energy to stay in operation. 

“We want to set an example of proactive environmental leadership, focused on sustainability and action on climate change, and this solar array is a terrific example of how we can make a real difference in slashing carbon emissions to the tune of around 2,240 t every year,” she said. 

“This is one of two solar sites set to be up and running in the Swan Reach region, with a further 16,000 panels currently being connected and soon to be energised at the pipeline’s first pump station. 

“Together with our other 30-plus solar sites strategically placed at our treatment plants, pump stations and depots across South Australia, we’re sustainably reducing our operating expenses and ensuring we keep prices low and stable for our customers.” 

SA Water has now positioned more than 360,000 solar panels at sites around the state to power pump stations, pipelines and plants.  

For more information visit the SA Water website.  

Interflow introduces new water main renewal system

By integrating these products into one synergistic process, Interflow said it is providing its customers and the community with an ‘all-in-one’ package for renewing ageing water main pipeline infrastructure. 


Traditional shutdowns using network valves are disruptive, impacting hundreds of customers at any one time.  

The Infrastop component within the RediFlow system can greatly reduce the number of impacted homes by isolating only those pipeline sections specific to the works being carried out.  

Interflow’s Titeflow process then installs a new tight fit HDPE pipe into the host pipe, restoring its structural integrity. 

Interflow Manager – Emerging Markets Will Zillmann helped develop the RediFlow system and explained how it can be leveraged to streamline processes in the field. 

Interflow Manager – Emerging Markets Will Zillmann.

“The RediFlow system is specifically designed for optimum construction efficiency,” he said. 

“It provides asset owners with a robust solution to suit the conditions of the host pipe and provides a range of environmental and social benefits for our customers and their communities. 

“The solution goes beyond the performance boundaries.  

It improves installation speed, reduces community impacts, and enhances the environmental sustainability of the works being conducted.” 

The implementation of Interflow’s RediFlow system onsite has already begun, with several successful installs to date.  

For more information visit the Interflow website. 

WATCH: Denso Bore-Wrap ARO application

The wrap creates an outer laminate layer, which protects both field joint coatings and mainline coatings from damage during pipeline installations, in challenging terrain or by means of trenchless installation methods, such as directional drilling, horizontal directional drilling or boring. 


Bore-Wrap is applied by wrapping the product over the existing pipeline coating and curing it with water, while its flexibility and high level of mechanical protection means it minimises the need for expensive spot repairs or re-pulling pipe from damage. 

Denso is a leader in corrosion prevention and sealing technology and its products have been used for more than 80 years across a range of industries.  

The range comprises a variety of specialised pipe and structural coatings, marine protection systems, concrete and tank coatings, including tapes, brush and spray applied liquid coatings, mastics, primers and sealants based on materials such as petrolatum, butyl rubber, bitumen, plastics and epoxy resins. 

For more information visit the Denso website. 

Rob Carr completes complex installation

Rob Carr employed its Iseki slurry pressured balanced machines to install 98 m of 470 OD GRP pipe under Evelyn Street and Fletcher Road in Frankston in record time for FHDB. 

The works were undertaken in water charged and soft silty sand ground conditions that had seen two previous contractors’ efforts to complete the job prove unsuccessful 

In a social media post, Rob Carr said FHDB had entrusted Rob Carr only with the works and both groups had collaborated to ensure the operation was completed successfully. 

“Given the works’ criticality, Rob Carr had one of its most experienced TBM operators on the job Jason Shirtcliffe, who, along with his crew, used every ounce of their experience to ensure the completion of the line,” the company said. 

FHDB is a team of constructors, designers and planners delivering works for South East Water in Victoria. 

Established more than 30 years ago and now a part of Soletanche Bachy, Rob Carr has specialist capabilities in microtunnelling, deep shaft and caisson construction and complex service installations.  

For more information visit the Rob Carr website. 

Renewals program underway in Melbourne

Since beginning in mid-January, the company’s Southern Operations Water team has now mobilised seven water main renewal crews in both Melbourne’s western suburbs and Central Business District.  

Interflow said the new services would provide great benefit to locals. 

We are thrilled to help CWW achieve their ambition of delivering exceptional water services that are affordable, safe and reliable for the community,” the company said in a social media post. 

A major name in the water industry, Interflow is one of Australia and New Zealand’s leading providers of trenchless pipeline solutions, specialising in the water mains, wastewater, stormwater and culvert sectors. 

CWW is one of three metropolitan Melbourne’s water businesses owned by the Victorian Government, providing drinking water, sewerage, trade waste and recycled water services to customers in Melbourne’s CBD, inner and western suburbs. 

For more information visit the Interflow website. 

APLNG proposes HDD for gas wells

A joint venture (JV) between Origin Energy, ConocoPhillips and Sinopec, APLNG is seeking federal approval to drill thousands of new gas wells in Queensland as part of its Gas Supply Security Project. 

In its referral documents, APLNG said it would construct the wells using HDD and would also incorporate this technology for drilling of pipelines under threatened ecological communities, threatened flora, threatened fauna habitat and migratory fauna habitat.  

The JV cited forecast gas supply shortfalls from 2024 onwards as reason for undertaking the new drilling activity, as well as the potential for increased gas demands and increased reliance on Queensland supplies as production from Victoria continues to decline. 

The new gas would be used for both the domestic gas market and the export demands of APLNG, with current appraisal data showing production from 2P resources expected to be 453.6 PJ of gas. 

If the proposal is successful construction is likely to commence in 2024. 

For more information visit the APLNG website.  

Decoding pipe choices for microtunnelling

Contractors and asset managers alike should ask themselves the question – are they selecting or inheriting the right pipe?  

CivilCode Managing Director John Bower can help with the answer.  

Along with founding and managing the software development company CivilCode, Mr Bower is also a consulting engineer and the Principal of Independent Civil Solutions.  

With extensive experience in the industry, Mr Bower offers expert advice for pipe selection that is second to none.  

MDG-S Mr Bower said the recent release of the Microtunnelling Design Guidelines for Sewers (MDG-S) has provided an opportunity to revisit some important design fundamentals.  

Plus, with the increasing capability of methods of installation often involving installation of relatively low stiffness pipe, it has become even more important to understand what strength of pipe is required for the permanent design loads.  

“Whether it is installing a steel pipe under a major highway or a GRP jacking or sleeve pipe in a microtunnel under a railway line, understanding the minimum required strength or stiffness of pipe is fundamental,” said Mr Bower.  

“Over the past few years, I have written a number of papers on this subject, and I was verypleased to have been able to contribute to the MDG-S.”  

The MDG-S explains that most pipes can either be classified as rigid (such as concrete or clay) or flexible (such as PE, PVC, steel, GRP and polypropylene).  

For rigid pipes, the existing design standard provide equations for calculating the relevant permanent design loads for bores or trenchless installations.  

“The only difference between the loads for a conventional (trench or embankment) or a trenchless installation, is how the soil loads are calculated,” said Mr Bower.  

However, in recent times, more and more flexible pipes are being installed using microtunnelling, particularly for sewerage installations.  

“The relevant design standard for structural design of flexible pipes is AS/NZS 2566.1, although this standard does not provide guidance on bored or jacked installations.  

“But, as stated in the MDG-S, the commentary to AS/NZS 2566.1 (Supp. 1) does provide details as to how soil loads can be calculated for “bores”.  

“Other loads can then be determined using the other sections of AS/NZS 2566.1.”  

Mr Bower said, ultimately, the main differences between a trenchless and a conventional trenched installation are how the soil loads should be calculated, what side support can be expected and how the design equations can and should be applied.  

“As explained in the MDG-S, effective grouting of the annulus can be an important part of the design to ensure side support from the native soil can be relied on,” he said 

“Although not included in the MDG-S, it is also possible to carry out a design based on the pipe stiffness alone if the grouting is unlikely to be effective or cannot be completed for some reason.”  

FlxPipe Software  

“If you are thinking that this all sounds a bit complicated, fortunately CivilCode has made it easy for both designers and contractors alike,” said Mr Bower.  

In 2020, CivilCode released a trenchless design option for its FlxPipe design software, being an online application for structural design of buried flexible pipes to AS/NZS 2566.1.  

The new trenchless option allows for the design of both new pipe installations and pipeline renovation.  

With a company-wide aim to produce civil engineering design software to remove the drudgery of manual calculations while retaining transparency at all stages of the process, CivilCode will guide users every step of the way including training on design theory and using FlxPipe 

For more information visit 

This article was featured in the March 2021 edition of Trenchless Australasia. To view the magazine on your PC, Mac, tablet or mobile device, click here.

generic water pipe image

SA Water to replace Wasleys main

The installation of new pipe will take place on Wasleys Road and is part of SA Water’s four-year, $155 million water main management program. 
SA Water’s General Manager Sustainable Infrastructure Amanda Lewry said the works are a great example of the ongoing investment in safe, clean water. 
“We are using PVC pipes for the majority of our water main replacement program, which are known for their better flexibility and resistance to movement, compared to fibro-cement,” she said. 
“While it’s difficult to completely stop water main leaks and breaks from occurring due to soil movement, weather and a variety of other environmental factors, we are committed to proactively limiting their frequency and any potential impact on our customers. 
“With the new pipes having an approximate life span of up to 100 years, this project ensures we can keep providing our customers in Wasleys with safe, smart, reliable and affordable water services for years to come.” 
Construction on Wasleys Road began in late March and is expected to take around 12 weeks to complete. 
For more information visit the SA Water website.  

Leading rehabilitation and relining contractor sponsors No-Dig Down Under

The company is an industry leader in the use of no-dig methods in house service and network infrastructure pipe relining and pipeline rehabilitation throughout the state and the rest of the country.

From house service sized relining projects to large scale network infrastructure assets, Wilmot Pipelining has a relining solution for all size pipes and drainage systems.

Based in Newcastle, NSW, Wilmot has a strong background in pipeline construction and hydraulic services and Wilmot’s management team has an industry leading understanding of the way pipelines are constructed.

This understanding – combined with the trenchless approach – makes Wilmot a complete pipeline and infrastructure rehabilitation company.

Wilmot provides many different rehabilitation methods for its clients and prides itself on finding a solution for any situation, working across the municipal assets such as water, energy providers, wastewater, industrial facilities and refineries.

Its dedicated team is also committed to quality assurance, are accredited in confined space entry, and have strict WHS procedures and safety standards.

One opportunity left to join industry leaders

One sponsorship opportunity remains for No-Dig Down Under 2021, the Gold tier, which includes sponsorship of the official opening of the exhibition, as well as 36 m2 of premium booth space.

If you’re interested in positioning your company alongside the industry leaders who are already supporting the event, contact Great Southern Press on +61 (03) 9248 5100 or email

If you have news you would like featured in Trenchless Australasia contact Managing Editor David Convery at

SA Water installing new water main

The upgrade is part of a wider program that will see approximately 30,000 m of pipe renewed throughout the state during 2020-21, and SA Water General Manager Sustainable Infrastructure Amanda Lewry said PVC pipes are being used on the majority of these works.

“While it’s difficult to completely stop water main leaks and breaks from occurring due to soil movement, weather and a variety of other environmental factors, we are committed to proactively limiting their frequency and any potential impact on our customers,” she said.

“With the new pipes having an approximate lifespan of up to 100 years, this project ensures we can keep providing our customers in Kingscote with trusted water services for years to come.

“It’s one of many water main replacements we’re undertaking as part of our four year state-wide $155 million water main management program.”

The Kingscote works are expected to be completed in late April.

For more information visit the SA Water website.

If you have news you would like featured in Trenchless Australasia contact Managing Editor David Convery at

SA Water to upgrade water main

The works are part of approximately 30,000 m of main being renewed around South Australia over the next year, with the Wilmington works to include the installation of new pipe along the Horrocks Highway.

SA Water GM Sustainable Infrastructure Amanda Lewry said PVC pipes will be used for the most of its water main replacement program.

“While it’s difficult to completely stop water main leaks and breaks from occurring due to soil movement, weather and a variety of other environmental factors, we are committed to proactively limiting their frequency and any potential impact on our customers,” she said.

“With the new pipes having an approximate life span of up to 100 years, this project ensures we can keep providing our customers in the Wilmington area with trusted water services for years to come, as well as limit the potential for water main breaks and leaks on a busy regional road.
“It’s one of many water main replacements we’re undertaking as part of our four year state-wide $155 million water main management program, and our sustained investment ensures a reliable supply of safe, clean water for our customers.”

The Wilmington upgrade is expected to take approximately five weeks to complete.

For more information visit the SA Water website.

If you have news you would like featured in Trenchless Australasia contact Assistant Editor Sophie Venz at

Liner won’t croak after quake

The company’s AM-LINER II® is a method for rehabilitating damaged wastewater and stormwater pipelines encompassing these qualities and has proven its strength under the most intense environmental circumstances.

PipeTech’s AM-LINER II is manufactured from a polyvinyl chloride (PVC) compound specifically formulated for pipeline rehabilitation and is resistant to all normal sewer effluents due to its superior chemical and flame-resistant properties. It is manufactured in a factory and not in the ground, with the physical properties of the liner known at the time of manufacture rather than weeks after installation.

AM-LINER II provides a cost-effective, minimally disruptive and efficient means of rehabilitating even severely damaged sewer pipes. Once installed, the PVC liner is continuous from manhole to manhole, eliminating leaking joints, root intrusion and further damage to the existing host pipe by corrosive sewer gases.

There are no hazardous chemicals to handle, no noxious odours and no hazardous materials released into the environment, while the smooth interior surface even transitions through offsets to give enhanced flow characteristics to the rehabilitated pipeline.

The PipetTech team busy on site installing the AM-LINER II, designed to withstand even the toughest conditions.

Tried and tested

Following the 2010–2011 Canterbury earthquake on New Zealand’s South Island, the region’s wastewater network was extensively damaged, causing issues for communities affected by the shock. The earthquake showed liquefaction and resulting ground deformations caused major geotechnical hazards to civil engineering infrastructures such as pipelines.

In particular, sewer pipes have been damaged in many areas of Christchurch as a result of liquefaction-induced lateral spreading near waterways and ground oscillation induced by seismic shaking. While most of the damaged sewer and water pipes in Christchurch were in sections made of asbestos cement, several segments of PVC, concrete and polyethylene (PE) pipes were also sheared, pulled out or compressed at various levels, with these damages affecting the sewer network’s functionality in many places.

A study comprising an extensive thesis completed by then-Auckland University student Shyamal Ram investigated the performance of sewer pipes equipped with the AM-LINER II during earthquakes and established its performance as a structural retrofitting measure to earthquake-proof sewer pipes.

The key objective of this research was to analyse the response of buried sewer pipes to liquefaction induced permanent ground deformation, particularly in the transverse direction and was completed by investigating the use of a flexible liner as a potential countermeasure to increase pipe capacity. Underpinning this study was the goal to ultimately retain pipe serviceability following an earthquake, thereby reducing community impacts and rehabilitating the wastewater network.

On average, the AM-LINER II increased the displacement capacity by 191 per cent, with the results confirming the product as an effective countermeasure for sewer pipes in liquefied ground, not only in terms of increased deformation capacity, but also because AM-LINER II can prevent an influx of sand and water through broken pipes. This allows sewer pipes equipped with the liner to remain serviceable even under severe liquefaction conditions.

As a result, restoration of damaged pipes can be delayed so that attention can be provided to more important services or facilities.

Repeat customers

PipeTech has been consistently lining pipes for a range of clients and councils throughout NZ, including Veolia Papakura, New Plymouth District Council, Stratford District Council, South Taranaki District Council, Whanganui District Council, Manawatu District Council, Fulton Hogan (Wairoa District Council), Ashburton District Council, InPipe Logistics (Fonterra) and Port Taranaki.

Manawatu District Council Special Projects Manager Chris Pepper praised the AM-LINER II as a reliable and efficient trenchless product.

“The AM-LINER II is quick and easy to install, is a fully structural product, has a proven seismic response and a demonstrable life cycle well in advance of 100 years,” he says.

“It is fully compatible with other trenchless inspection and repair techniques for sewers, including Later Joint Repair (LJR) products.”

Whanganui District Council Engineering Officer Chris Carter added that the council has used the reliable product since 2011 with no issues.

“Easy and quick to install with seamless lengths of a stable material, WDC have found it an excellent solution to remedy infiltration, root intrusion and structural faults,” said Mr Carter.

Another long-term user of the AM-LINER II, South Taranaki District Council Senior Projects Officer Colin Dudley, said the product allows for the option of “relining over replacing many of our sewer lines, with far less disruption to traffic flow and no road reinstatement required”.

The AM-LINER II is PipeTech’s exclusive product range, with the company being the sole licenced distributor in NZ.

This article was featured in the September 2020 edition of Trenchless Australasia. To view the magazine on your PC, Mac, tablet or mobile device, click here.

For more information visit the PipeTech website.

If you have news you would like featured in Trenchless Australasia contact Assistant Editor Sophie Venz at

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Sydney Metro Western Sydney Airport – Advanced and Enabling Works (AEW)
Issued by: Sydney Metro (NSW Government)
Closing date: 22 January 2021
Location: New South Wales
Description: Sydney Metro advises that an upcoming invitation for registrations of interest associated with the installation and commissioning of construction power, construction water and stormwater diversions for the Sydney Metro Western Sydney Airport project is scheduled to be advertised on or around 22 January 2021. It is expected the works will include construction water supply and stormwater diversion.

Cross River Rail – Tunnel and Stations – Directional Drilling Contractors
Issued by:
Cross River Rail Delivery Authority
Closing date:
31 March 2021
: Expression of interest is sought from directional drilling contractors for utilities relocation packages, under boring works for various potential packages of work.

Nyngan Water Supply-Off River Storage 1B
Issued by:
Public Works Advisory (NSW Government)
Closing date:
19 January 2021
New South Wales
: The works under this contract consists of supply of all materials, plant, equipment and labour and construction of an in-ground storage including spillway and drainage, road access, and pipework.

McAlister Street Watermain Renewal
Issued by: Whakatane District Council
Closing date: 29 January 2021
Location: New Zealand
Description: Tenders are invited from suitably qualified contractors for the works as described in the document. Below is the summary of the scope for this contract:

  • Supply and installation of approximately 630m of DN280 PE100 SDR11 pipework.
  • Supply and installation of approximately 70m of DN200 Ductile Iron PN20 (or SS316 SCH10) pipework.
  • Supply and installation of approximately 210m of DN180 PE100 SDR11 pipework.
  • Supply and installation of approximately 230m of DN125 PE100 SDR11 pipework.
  • Supply and installation of short lengths of DN63 PE100 SDR11 pipework.
  • Construction of pipework connections (tee’s, bends, valves, hydrants, thrust blocks).
  • Construction of approximately 50 property connections.
  • Pressure testing, flushing, chlorination, and commissioning of works.
  • Decommissioning of existing valves, hydrants, and property connections.

Construction and Rehabilitation of Transport and Drainage Infrastructure
Issued by:
Brisbane City Council
Closing date:
3 March 2021
Description: Council is seeking proposals for the establishment of a corporate procurement arrangement for the construction and rehabilitation of transport and drainage infrastructure.

Buchan Water Treatment Plant Raw Water Storage
Issued by:
East Gippsland Water
Closing date:
12 February 2021
This tender is for the supply and installation of a new raw water storage tank including a new raw water pump station at the Buchan Water Treatment Plant. Tender documentation will be available for collection by arrangement from East Gippsland Water’s office at 133 Macleod Street, Bairnsdale (telephone 1300 720 700), on USB memory stick ($12.00 fee applies per tender document) or hard copy ($35.00 fee applies per tender document). This project is being funded as part of the Victorian Government’s $2.7 billion Building Works stimulus package.

Herdsman Main Drain to Perry Lakes Drainage Diversion Project (Design and Construction)
Issued by:
Town of Cambridge
Closing date:
27 January 2021
Western Australia
The town is seeking a suitably qualified and experienced Contractor to undertake the design and construction of the Herdsman Main Drain to Perry Lakes Drainage Diversion Project as stated in RFT 2021-02.

Each fortnight, the Trenchless Australasia e-newsletter includes a list of tenders relevant to no-dig contractors, suppliers and manufacturers.

The information is provided by Australian Tenders, which is renowned for being an Australia-wide locally owned and operated tender notification service.

Australian Tenders is also offering readers of Trenchless Australasia three months free on their subscription plans.

Email for more information.

For more tender information visit the Australian Tenders website.

If you have a tender you would like featured in Trenchless Australasia contact Assistant Editor Sophie Venz at

One Shot, plenty of opportunities

One Shot Directional Drilling (OSDD) is a horizontal directional drilling (HDD) specialist, with its history of projects spanning crossing waterways, roadways and environmentally sensitive areas where other trenching methods are not possible, all throughout Queensland and in the northern New South Wales region.

Most recently, OSDD has been completing drilling projects on various farms in the Lockyer Valley, Queensland, as HDD is an ideal method for sites sensitive to surface disruptions – such as farming crops.

OSDD would drill under the road and now, upon completion of the drills, farmers can provide fast irrigation for crops on the opposite side of the road to where the dam or water wells are situated.

A durable solution

OSDD Managing Director Adrian Brock says the team has completed many drills on farms within the region, all within very quick timeframes. Each project has taken no more than 2-3 days, with OSDD installing HDPE PN16 blue stripe of varying lengths and sizes at Lilydale Farms, Huggins Organic Farms, Windolf Farms and more.

Mr Brock says HDPE PN16 blue pipe was chosen for the projects due to its high durability, ability to be used for a diverse range of applications and its non-corrosive, chemical resistant properties. The pipe is available in a wide range of thicknesses and pressure ratings, with fittings and equipment to create an entire system, with such versatility necessary for the various jobs.

“Poly pressure pipes are designed for a long lifetime (in excess of 100 years) in underground infrastructure,” says Mr Brock.

“Installing the pipe in the ground is typically the most expensive part of the operation (usually 85-90 per cent of the project costs), therefore the long life and durability of poly piping remove the need to regularly replace pipes within their working lifetime.”

In addition to its long life and durability, the HDPE PN16 pipe is lightweight and flexible, which allows for an easier and more cost-effective freight, handling and installation.

To complete the installations, Mr Brock says OSDD used a Vermeer D9x13 Series III Directional Drill Rig, Ditch Witch JT2020 Directional Drill Rig, Ditch Witch FX30 Vacuum Excavation Truck and a Digitrak F5 Falcon Locator.

“True professionals”

Lilydale Farms Pty Ltd Farm Manager Ryan Folkard – who knew underground drilling existed but didn’t know where to start before finding OSDD online – had the first drill completed by the team earlier this year, and has continued to call upon them since.

Mr Folkard says the team are “true professionals” who are on time, well organised and dedicated to safety – both from a traffic point of view as well as the job they are doing.

Mr Folkard also says the OSDD team are so helpful that they didn’t shy away from doing him a favour while onsite with their vac truck – solving a cable issue he’d had for quite some time.

“In the past, I had other contractors come up and try to find a fibre optic cable with no luck. Adrian found it in about an hour,” he says.

Mr Folkard adds he would “150 per cent” recommend the company to other farmers in the region – something he has already been doing.

Huggins Organics Farm Owner Troy Huggins found out about OSDD through Mr Folkard, with his own drilling job being completed a month ago. Mr Huggins shares Mr Folkard’s high opinion of OSDD drilling, saying the team is “very prompt, very polite and very professional”.

“They do a neat and tidy job, don’t leave a mess around,” said Mr Huggins.

“It’s never a drama for any questions, they’d answer them straight away and if you need paperwork, it’d be sent through straight away. They’re absolutely fantastic.”

A wealth of experience

Mr Brock established the family-owned business in 2017, after gaining more than 20 years of experience in the HDD industry himself. Since then, OSDD has grown to specialise in HDD and underground boring services for the installation of conduits for water, gas, power and telecommunications all across the Sunshine State and northern NSW.

Since acquiring the knowledge and expertise to successfully complete projects ranging from small residential to large civil projects, Mr Brock says the OSDD team is always able to provide a profile design of crossings to meet a client’s chosen methodology and has more than 20 years of experience drilling in all terrains, especially rock bores.

The company can install single or multiple conduit type configurations ranging from 63 mm conduits to 355 mm on-grade HDPE pipes for sewers or enveloper pipes and

Mr Brock says over the years OSDD has provided its drilling services to all kinds of clients, including private enterprises, government agencies, city councils, major network providers, small construction companies and the recent and successful addition of farmers.

This article was featured in the December 2020 edition of Trenchless Australasia. To view the magazine on your PC, Mac, tablet or mobile device, click here.

For more information visit the OSDD website.

If you have news you would like featured in Trenchless Australasia contact Journalist Sophie Venz at

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Construction of the clean water drainage system
Issued by:
Kimbriki Environmental Enterprises Pty Ltd
Closing date:
8 December 2020
New South Wales
: Kimbriki Environmental Enterprises Pty Ltd proposes to construct a Clean Water Diversion System (CWDS) at the Kimbriki Resource Recovery Centre, which is located off Kimbriki Road, Ingleside in northern Sydney. The proposed CWDS will divert stormwater runoff from approximately 70 hectares of up gradient land, including 24 hectares of land to the north and west of Mona Vale Road. The CWDS will comprise a system of stormwater diversion drains and pipes constructed around the perimeter of the KRRC facility, uphill of the active KRRC areas.

Provision of services for water main renewals
Issued by:
Coliban Region Water Corporation
Closing date:
8 December 2020
: Coliban Water invites tender submissions for the provision of service water main renewals throughout the region in central and northern Victoria. The principal has identified a need to undertake a comprehensive water main renewal program as part of its ongoing maintenance program for management of the water supply system.

Sedgebrook Street water supply upgrade
Issued by:
Whanganui District Council
Closing date:
10 December 2020
New Zealand
: Whanganui District Council are inviting tenders from suitably experienced contractors for replacing the existing water-main from 26 Sedgebrook Street to Nile Street. The scope of work includes but is not restricted to installation of all related 125 mm OD diameter MDPE pipe replacement works (length 102 m) by using a directional boring and excavation method.

Catherine Avenue, Chelsea pipelining
Issued by:
Kingston City Council
Closing date:
10 December 2020
Description: The scope of works in this contract includes the following:

  • Cleaning and preparing an existing 675 mm diameter and 825 mm diameter concrete stormwater drain for the purpose of lining
  • Installing approximately 61 m of a cured-in-place pipe (CIPP) structural liner to rehabilitate an existing 675 mm diameter concrete storm water drain
  • Installing approximately 130 m of a CIPP structural liner to rehabilitate an existing 825 mm diameter concrete storm water drain
  • Cutting out and reconnecting existing house drains and drainage system connections
  • Post construction CCTV inspection of the lined drain and connections

Busselton Water directional drilling services
Issued by: Busselton Water
Closing date: 11 December 2020
Location: Western Australia
Description: Busselton Water invites suitably qualified contractors for the provision of directional drilling services for a three year period.

Meringandan West Trunk Main
Issued by:
Toowoomba Regional Council
Closing date:
15 December 2020
: Tenders are invited for the lump sum contract for the design and construction of the Meringandan West Trunk Water Main.

Each fortnight, the Trenchless Australasia e-newsletter includes a list of tenders relevant to no-dig contractors, suppliers and manufacturers.

The information is provided by Australian Tenders, which is renowned for being an Australia-wide locally owned and operated tender notification service.

Australian Tenders is also offering readers of Trenchless Australasia an extra three months on their subscription plans.

Email for more information.

For more tender information visit the Australian Tenders website.

If you have a tender you would like featured in Trenchless Australasia contact Assistant Editor Sophie Venz at

Wilmot expands rehabilitation offerings

Wilmot Pipelining conducts rehabilitations of pipelines of all sizes and shapes to upgrade asset owner’s infrastructure and keep it operational. By using trenchless technologies, Wilmot can transform ageing and failing infrastructure with minimal disturbance. 

The company says it provides many different pipeline rehabilitation methods to its clients and prides itself on finding a suitable solution for any and all situations. With a strong background in pipeline construction and hydraulic services, the Wilmot team says it has a “good understanding of the way pipelines are constructed”. 

With most of its infrastructure upgrades carried out on municipal assets such as water, energy providers, wastewater, industrial facilities and refineries, Wilmot says it is now offering clients the rehabilitation of pits and manholes using its UV curing method that can complete a restoration in a matter of hours. 

The company ensures that similar to its other trenchless offerings, its new liners are installed quickly and with no impact on the network while carrying out the renewal procedure. 

World first

Wilmot Managing Director Andrew Wilmot says manufacturer Brandenburger Germany has created one of the first pioneered CIP cured manhole liners, which the company is now proud to be installing for its Australian clients. By using the innovative system, manholes and pits are transformed back to fully operational with a 50-year warranty on the asset. 

“As a pioneer and one of the world’s leading manufacturers of UV CIPP, Brandenburger Liner has used its experience to develop an innovative method for manhole rehabilitation,” says Mr Wilmot.  

“The Brandenburger Manhole Liner BBS.8 reduces logistical effort for our customers at the job site and allows an efficient, as well as holistic rehabilitation of the sewer network including manholes and sewers.” 

Mr Wilmot says the UV manhole liner adapts to the shape of the manhole solely by air pressure, which prevents any time-consuming measurements of the manhole in the lead up to the rehabilitation. 

“The specially designed stretchable GFR laminate generates three important advantages,” says Mr Wilmot. 

“Beforehand, no measurements of the old manhole are necessary, only the size of the manhole opening and the size of the manhole itself are needed. Secondly, there is endless production – with the special production technology, Brandenburger is able to produce all manhole liners at a stretch for diameters between 800-1,000 mm.” 

The Brandenburger UV liner being used by Wilmot Pipelining on a recent project.

Mr Wilmot says the third advantage is rehabilitation can now occur from the bottom of the manhole up to the sewer pipe. 

“With a special installation procedure, it is also possible to rehabilitate the bottom of the manhole with the Brandenburger BBS.8 material.” 

The Wilmot main office and depot is located in Newcastle, New South Wales, although the company can service all areas of Australia, offering homeowners and municipal asset and infrastructure organisations rehabilitation services using trenchless methods. 

Additional offerings

Alongside its many relining offerings, including UV lining, hot cure lining, point lining and patching, lateral seal lining and manhole repairs, Wilmot also offers various other trenchless services. 

As a Hunter Water Accredited Hydraulic services provider, Wilmot can construct new sewer and water mains. The team says its knowledge and experience gained from working on large-scale projects for more than 20 years has provided the confidence to deliver projects on time and within budget. 

Wilmot says it also has a diverse range of robotic cutters, including down the branch cutters, HSL cutters, reticulation cutters and beast cutters for medium to large bore pipelines, adding it can open up newly relined junctions and connections or remove large concrete deposits from pipelines. 

Additionally, the company produces high quality CCTV reports and assessments for its clients with the industry standard report system ‘Wincan’ to provide condition assessment and pre-and post-relining reports. 

Wilmot says it provides a complete pipeline rehabilitation service to its clients by including pipeline cleaning and waste disposal in its offerings, and completes this service using many different sized high-pressure water jetting and non-destructive digging units. 

“The Wilmot team pride themselves on having a cost effect and most non-destructive solution for any situation,” the company says, adding that it is an Australian family-owned company based on traditional values. 

“We pride ourselves on service, stability and reliability in providing pipeline rehabilitation solutions to our customers.” 

This article was featured in the December 2020 edition of Trenchless Australasia

For more information visit the Wilmot Pipelining website.

If you have news you would like featured in Trenchless Australasia contact Journalist Sophie Venz at

CWW secures water supply

As part of the M205 Carlton Water Main Renewal Project, CWW installed a new 750 mm wide water main along Canning Street in Carlton.

CWW General Manager of Infrastructure and Delivery Amanda Smith said the upgrade was vital to ensure reliable water services for the community and its anticipated future growth.  

“The existing water main is almost 140 years old and nearing the end of its service life,” said Ms Smith.

“The new pipe is almost twice the size and will meet the needs of the CBD and inner Melbourne community it serves well into the future.
“I’m really grateful to residents and businesses in and around Canning Street who welcomed us into their quiet, leafy neighbourhood and showed great patience while we delivered this significant project.
“A small and committed group of community and stakeholder members also joined us on a project Community Reference Group, which allowed us to bring them behind the scenes of the work we were doing and helped us understand how to best plan and deliver these works with minimal disruption.” 

Works were completed on a popular bike commuter route, with CWW planting hundreds of trees and installing new drinking fountains in the area as a thank you to the local community for its support.  

CWW partnered with Jaydo on the infrastructure project, saying it demonstration a “joint commitment to working safely, supporting community safety and putting customers first”.

For more information visit the CWW website.

If you have news you would like featured in Trenchless Australasia contact Assistant Editor Sophie Venz at