Works
DRIVEN BY QUALITY
How RSP is pioneering UK growth in suction excavation
Industry proven products upheld by the
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PUBLISHER
Paul Harwood pharwood@westrade.co.uk
EDITOR
Austen Lees editorial@trenchless-works.com
MANAGING EDITOR
Leigh Abbott labbott@westrade.co.uk
SALES DIRECTOR
Trevor Dorrell tdorrell@westrade.co.uk
DESIGN & PRODUCTION
Ioan Lucian Sculeac lucian@westrade.co.uk
CHINESE AGENT
Lexi Di lexi.di@bestexpo.cn
COPYRIGHT
Trenchless Works is published 12 times a year by Westrade Group Ltd I Carotino House| Bury Lane I Rickmansworth I WD3 1ED I UK
Contributions: Contributions are invited and articles should be emailed to editorial@trenchless-works.com. No responsibility can be taken for drawings, photographs or written contributions during delivery, transmission or when with the magazine. In the absence of an agreement, the copyright of all contributions, regardless of format, belongs to the publisher. The publishers accept no responsibility in respect of advertisements appearing in the magazine and the opinions expressed in editorial material or otherwise do not necessarily represent the views of the publishers. The publishers accept no responsibility for actions taken on the basis of any information contained within this magazine. The publishers cannot accept liability for any loss arising from the late appearance or non-publication of any advertisement for any reason whatsoever.
ISSN 2049-3401
Editor’s Welcome
Austen Lees
This month, in addition to all the latest news from across the sector, we are delighted to provide readers with a unique insight into two internationally renowned brands: RSP Suction Excavators and Minicam. It was great to chat with Charlie at RSP and Stephen from Minicam so openly about their businesses, the latest products, and plans for continued growth.
I would also like to give a shout-out to everyone attending Trenchless Asia in the beautiful Malaysian capital of Kuala Lumpur. It looks set to be a fantastic event, and I’m sure it’s going to be productive, informative, and fun for everyone taking part. A big thank you to all our sponsors and supporters, without whom this incredible platform for trenchless technology would not be possible. If you’re interested in learning more about the Malaysian trenchless market and one of its pioneers, be sure to check out our Q&A with Faizal Othman, President of the Malaysia Association for Trenchless Technologies.
As always, MATT has been key in ensuring high-level governmental support for the event.
Thank you for all your input into this edition. We have some great interviews lined up with key industry figures and some of the biggest brands over the next few months, which I’m really excited to bring to you. If you have any news, comments, or opinions that you’d like to share, please just drop me a line at editorial@trenchless-works. com.
Enjoy the magazine!
Austen
To submit editorial for Trenchless Works next issue please email copy and images to: editorial@trenchless-works.com by the 12th of the month. Submissions arriving after this date cannot be guaranteed inclusion in that month’s issue. For Trenchless Works sponsorship and advertising rates please email: tdorrell@westrade.co.uk
ARTICLE
Editor’s Welcome
INDUSTRY INSIGHT
Driven by quality: How RSP is pioneering UK growth in suction excavation
NEWS
Vortex expands UK footprint with the acquisition of McAllister Group
BKP Berolina takes the lead in trenchless district heating innovation
Contractors picked for £466m wastewater framework RAUSCH unifies brands and strengthens UK presence
JBP and UNRE Vietnam forge a new training partnership for Vietnam Neo Air unveils next-generation emission-free excavation tech
HDD
TBM success for CBBT
AUGER BORING
Product enhancement: HD GRS Cutterhead
PIPELINE REHABILITATION
Masters of rehabilitation: IMPREGLiners set new benchmark in the Netherlands
Smart rehab under pressure
Elevate your operations
SUPPORT EQUIPMENT
Trenchless Works visits Minicam Group’s UK headquarters
FOCUS ON TRENCHLESS TRAINING
New approaches at Trenchless Asia 2025
EVENTS
From engineer to industry leader
Goodeng Machine: Delivering global excellence in Trenchless Technology
UKSTT SOCIETY NEWS
A message from the Chair
Successful online event for UKSTT’s New to Trenchless Industry Network (NtTIN) highlights future opportunities
ISTT SOCIETY NEWS
A message from the Chair
Call for ISTT fellow is now open
IbSTT promoting Trenchless at SMAGUA 2025
Call for No-Dig Awards is now open
ISTT educational online seminar: ASTEE recommendations for the design of pressure pipe liners
International Society for Trenchless Technology (ISTT) launches enhanced website, unveiling exclusive member
Call for sponsors: International No-Dig 2025 Vancouver sponsorship opportunities
NASTT SOCIETY NEWS
Building the Future of Trenchless Technology: The Role of NASTT’s Regional Chapters
EVENTS AND MEETINGS
Precision matters
Driven by quality: How RSP is pioneering UK growth in suction excavation
An interview with Charlie Gardener, Director at RSP UK Suction Excavators Ltd, by Trenchless Works Editor, Austen Lees.
“ Our commitment to family values, coupled with a focus on service excellence and technical innovation, underpins our ongoing success and growth in a highly competitive landscape
In 1993, Marina Renger, Karl-Heinz Renger, and Jens Graber founded the Reschwitzer Saugbagger Produktions GmbH (RSP GmbH for short) business in Germany. On 15 April 1993, production began with three employees in Saalfeld, and over the next 30 years, the RSP brand has expanded globally, with the group now employing over 800 people across three continents and RSP machines at work in over 30 countries.
The company quickly gained a reputation for innovation and reliability, and throughout the decades, it has expanded and diversified its products for the
construction sector, helping to advance its customers’ performance. Today, RSP is recognised as a leader in the industry, continually evolving to meet market demands and sustainable practices.
RSP UK’s rapid growth began when Jens met Lloyd and Charlie Gardener in the early 2000s, and their shared values quickly paved the way for the successful growth of RSP under the combined leadership of the Gardener, Renger, and Graber families. Under their guidance, RSP has continued to innovate and expand its product offerings while maintaining its reputation for high quality. >
“
When a customer invests £400,000–550,000, we need to help them ensure that investment is protected and maximised. A key aspect of this is ensuring optimal utilisation to maximise return on investment
Speaking with Charlie, it’s clear that the family values that were so important in establishing the business remain crucial today. She recognises the significance of having the founders’ children still involved in the company and appreciates the parallels with other successful German manufacturers like Liebherr, which demonstrate an almost family-like relationship with their employees. “This commitment to family values, coupled with a focus on service excellence and technical innovation, underpins our ongoing success and growth in a highly competitive landscape,” says Charlie.
RSP’s global reach with local service
In Germany, RSP employs over 600 skilled professionals, while the UK business has grown to nearly 40 employees, encompassing a range of technical, operational, and support roles. This expansion underscores RSP’s commitment to investing in the talent and resources needed to meet the demands of its customers and maintain its leadership in the suction excavation industry.
Following the establishment of a new production facility in Bad Langensalza, RSP now boasts four production sites, ensuring there is sufficient manufacturing capability to support its continued growth in the UK and around the world.
The company has also recently invested in a parts and new service centre, aiming to deliver parts globally within just 24 hours, thereby enhancing customer support and operational efficiency. R & G Group, RSP’s holding group, has also recognised the value of controlling its supply chain to minimise dependency on external sources for parts and materials. This back integration effectively reduces risk, ensuring that, on the rare occasion there is an issue with a machine, it can become operational as quickly as possible. Charlie points out that, “the premium associated with an RSP unit is negated if a machine is off the road for any period of time, and that’s why we are so committed to high levels of service and maintenance.”
Where innovation comes to life - the RSP manufacturing facility in Langenfeld, Germany
Charlie Gardener Director, RSP UK Suction Excavators Ltd
Adding value through dedicated support
When I ask Charlie about RSP’s ability to add value throughout the life of the machine, she quickly agrees, noting, “When a customer invests £400,000–550,000, we need to help them ensure that investment is protected and maximised. A key aspect of this is ensuring optimal utilisation to maximise return on investment. RSP’s commitment to support enables operators to approach each site confidently, equipped with the knowledge they need to complete the job quickly and efficiently.”
Charlie emphasises that the operator’s skills are crucial to delivering success; a machine is only as effective as the person operating it. Therefore, training and support are essential. This collective effort allows RSP to assist customers in reaping the benefits of suction excavation technology, which is increasingly recognised for its operational, commercial, and safety advantages in delivering and maintaining underground utilities.
For this reason, RSP is leading the way in championing recruitment within the sector and is committed to fostering the growth of the entire suction excavation market in the UK. A significant challenge is finding the right individuals; it’s not as simple as picking people off the street. RSP invests in training and support to ensure these recruits have the necessary skills.
When discussing the new parts centre and its added value, Charlie points out that support starts even earlier: “Suction excavators are complex pieces of equipment, which is why we employ initial call handlers to triage calls before directing them to technical experts for real-time assistance. We aim to provide live technical advice within 15 minutes, escalating issues to engineering managers if necessary. If neither solution resolves the problem, we strive to dispatch an engineer the next day or as soon as possible.” Impressively, approximately 9 out of 10 issues are resolved over the phone. All this support is available 24/7, demonstrating the value of RSP’s premium offering.
Resourcing the future
In addition to taking on two engineering apprentices, RSP has demonstrated its commitment to resourcing its UK business and the wider suction excavation sector by bridging the gap between becoming an HGV driver and evolving into a highly skilled and sought-after suction excavator operator—paving the way for lucrative career opportunities.
When asked about the challenges of finding qualified machine operators, Charlie highlights a lack of education and awareness. To combat this, she references her collaboration with Bedford College to educate students about suction excavators and the diverse career opportunities that exist in the industry. Charlie emphasises that, despite the current tough economic climate, this sector is experiencing growth and stability, boasting secure and rewarding job prospects. >
Engineering excellence across Germany, RSP’s manufacturing sites are located in Saalfeld, Langenfeld, and Camburg
Customer-led innovation
Innovation is a cornerstone of the company’s philosophy, driven by the needs of its operators and clients. Every new development, whether it’s software or advanced tools, is rooted in customer feedback. A prime example of this commitment is the new ESE 6 suction excavator, which underwent rigorous prototype testing in the market. Feedback from users directly informed its design, engineering, and product development, ensuring that it meets the specific needs of operators across multiple regions, including the UK and France.
The ESE 6 stands out not only for its distinct appearance but also for its impressive array of new features. One notable innovation is the unique swivel joint at the end of the hose, a request voiced by customers seeking enhanced usability. This advancement provides operators with greater excavating reach and functionality and positions RSP as the sole manufacturer offering this feature. As a result, the ESE 6 is rapidly becoming the most in-demand machine among RSP’s impressive customer list.
RSP is also the only manufacturer to have developed a fully electric suction
excavator, demonstrating that the challenges associated with delivering adequate power for the fan can be overcome. While a move to more sustainable machines is inevitable, Charlie emphasises that there needs to be a greater commitment from the UK government to provide the required infrastructure to accelerate this transition.
This customer-led approach to innovation not only satisfies current market demands but also sets the standard for future advancements in suction excavation technology. The build quality is reflected in a comment recently made to Charlie by a customer, who said, “You pay for a premium
product, and it performs in a premium way.”
Growing the suction excavation market
When asked what changes could help accelerate the use of sustainable and costeffective technologies, Charlie emphasises that making the use of suction excavators mandatory would significantly enhance safety for those still relying on traditional methods. Fortunately, many are already recognising the benefits and choosing suction excavation as their preferred option.
Charlie reiterates that, “the sector must work diligently
to attract more talent and raise awareness of the career opportunities available. It’s crucial to have the right people operating these machines; however, recruiting and training them can be expensive.”
Additionally, she highlights a concerning trend: “as skilled individuals retire, their expertise is not being adequately replaced, leading to a loss of vital knowledge within the sector.”
Finally, while she prefers not to delve too deeply into politics, Charlie notes the significant challenges facing businesses in the UK currently: “Increases in National Insurance and potential cuts to Capital
Allowances, such as the Annual Investment Allowance, create economic headwinds that could hinder capital investment and do little to support the growth of a market focused on making work safer and more sustainable.”
It was fascinating to spend time talking to Charlie and gaining insight into what is undoubtedly a good news story for both the sector and the UK. Next year marks RSP UK’s 10th birthday, and it seems they have every reason to celebrate!
Introducing the innovative ESE 6 in action—delivering game-changing features and a striking, modern design
Vortex expands UK footprint with the acquisition of McAllister Group
53-year-old environmental services and trenchless solutions provider strengthens Vortex’s presence in the UK and Ireland
Vortex Companies (Vortex), one of the fastestgrowing global providers of trenchless infrastructure solutions, is pleased to announce the acquisition of McAllister Group (McAllister), a leading provider of trenchless water and sewer rehabilitation services in the UK and Ireland. With a workforce of over 180 employees across four locations, McAllister has built a strong reputation for delivering high-quality environmental and infrastructure services to residential, commercial, and government clients.
“McAllister has an outstanding reputation in the industry, and its business model aligns seamlessly with our UK operations,” said Mike Vellano, CEO of Vortex Companies. “By leveraging Vortex’s additional technical expertise and resources, McAllister will be well-positioned to expand its service offerings and support larger, more complex projects in the years ahead.”
For more than five decades, McAllister has evolved and expanded its environmental service capabilities to meet the rising demand for sustainable, non-disruptive infrastructure rehabilitation. “Our partnership approach has helped us secure framework agreements that will drive our business for years to come,” said Dan Watson, SVP and Managing Director. “With Vortex’s support, we can boost our value, cut costs, and pursue larger framework contracts.”
“McAllister has continuously adapted to stay at the forefront of emerging technologies, ensuring top-tier service for its customers,” added Ryan Graham, COO of Vortex Companies. “Their ability to deliver turnkey solutions across commercial, industrial, and residential sectors—while also partnering with Tier 1 contractors and government agencies—positions them as a key player in the industry.”
“For 53 years, the McAllister name has been synonymous with delivering exceptional water and drain services to the industry,” concluded Vellano. “Leo and Pete McAllister have carried the company torch and continued to build on the company’s legacy of success. You can see it in the people they hire, their continuous investment in technology and process improvement, and the relationships they have with their customers.”
“ McAllister has continuously adapted to stay at the forefront of emerging technologies, ensuring top-tier service for its customers
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BKP Berolina takes the lead in trenchless district heating innovation
Majority acquisition of PPR Sweden strengthens global rollout of CarboSeal® technology
In a landmark move within the trenchless rehabilitation sector, BKP Berolina Group has acquired an 85% majority stake in PPR Sweden, the manufacturer behind the groundbreaking CarboSeal® liner for district heating pipe rehabilitation. The acquisition positions BKP Berolina at the forefront of a rapidly growing segment within the underground infrastructure market.
“This transition creates the right foundation to take CarboSeal® to the next level.” — Andreas Martsman, CEO, PPR Sweden
Restructuring for growth
Previously co-owned by Oxeon AB, BKP Berolina, and PPR Deutschland GmbH, PPR Sweden is now majoritycontrolled by BKP following its purchase of Oxeon’s shares. PPR Deutschland retains a 15% stake and continues to serve as CarboSeal’s sales partner for the DACH region.
Importantly, Oxeon AB will remain a strategic partner, supplying its advanced spread tow carbon fibre reinforcements – a key component of the CarboSeal® system – and supporting future development initiatives.
“CarboSeal® belongs with an experienced liner manufacturer, and BKP is the ideal long-term home,” says Martsman, who will continue in his role as CEO of PPR Sweden.
About CarboSeal®: A Trenchless breakthrough for district heating
CarboSeal® represents a firstof-its-kind trenchless solution for the renewal of district heating networks. Using a carbon fibre/epoxy composite liner, it enables structural rehabilitation of pipes ranging from DN 100 to 800 with minimal or no excavation.
• Operating temperature: 130°C (175°C peak)
• Operating pressure: 16 or 25 bar
• Installation: via existing manholes or compact entry pits
• Environmental benefit: over 90% reduction in CO2 and surface disruption compared to open-cut methods
The liner has already proven its performance in Austria, Germany, Sweden, the UK, South Korea, Lithuania, and the Czech Republic, with Norway next in line.
“We are now in the driver’s seat to scale CarboSeal® globally, optimise production, and expand trenchless innovation.”
— Thomas Christiansen, CEO, BKP Berolina Group
Global rollout with local roots
PPR Sweden will continue to operate from its Borås headquarters, while production of CarboSeal® will remain at BKP Berolina’s state-of-the-art facility in Velten, near Berlin.
With this strategic acquisition, BKP Berolina is well positioned to lead the next chapter in sustainable underground infrastructure – expanding the reach of CarboSeal® across Europe and into global markets.
“
This transition creates the right foundation to take CarboSeal® to the next level
- Andreas Martsman, CEO, PPR Sweden
“
We are now in the driver’s seat to scale CarboSeal® globally, optimise production, and expand trenchless innovation
-Thomas Christiansen, CEO, BKP Berolina Group
Lateral thinking for WRc CP655
Lateral Repairs has emerged as the only Class 1 leak-tight full system, rigorously tested to meet the CP655 infiltration resistance standard. This includes the liner, connection collar and a comprehensive sewer sealing solution.
Invited by WRc to participate in the recent CP655 test in Swindon, UK, this opportunity perfectly aligned with the company’s core mission delivering reliable, leak-tight CIPP solutions from the start. With growing attention on the rehabilitation of lateral connection collars, the decision was made to undergo the full test, including the lateral section under infiltration conditions.
This comprehensive testing underscores the full capabilities and effectiveness of their solutions in ensuring leak-tight performance.
The objective of the test was to assess the leak tightness of cured-in-place systems under external hydrostatic water pressure. The results were promising, with both the liner only and liner-plus-Latwrap systems passing Level 1 tests, confirming 100% leak-tight sewer repairs.
Liner Test Results from WRc Limited in Swindon showed a Class 1 pass with no infiltration, indicating the liner’s excellent performance under pressure. The Connection Collar Test also
yielded a Class 1 pass, with no infiltration detected.
For Lateral Repairs, the Latwrap system was used in combination with the Nanotech, Mega liner, and Mega Epoxy Resin system, offering operators flexibility to choose the most suitable materials for their working environment.
The system provides options for resins with pot lives ranging from 2 hours to 7 hours, ensuring adaptability to various project needs.
UK’S first Premier CIPP training venue
Training will be key in the role out of the CP655 standards, Lateral Repairs with its UK sales partner CIPP Supplies has developed and invested in the UK’s first Premier CIPP training centre based just outside of Macclesfield, Cheshire training venue.
Materials are on stock and ready for immediate delivery at CIPP Supplies.
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Contractors picked for £466m wastewater framework
Southern Water has appointed three contractors to a £466m framework covering reactive and planned maintenance across its wastewater network until 2030 under the AMP8 asset management period.
The firm selected Lanes Group, McAllister Bros and Cappagh Browne Utilities on a fourlot framework that will run across its operational region, which includes Kent, Sussex, Hampshire and the Isle of Wight.
The largest share of the work, worth £272m, has been awarded to Lanes Group for operate and maintain services. These cover initial responses to customer contacts, sewer CCTV and cleansing, and patch lining of pipes.
Cappagh Browne Utilities has secured the £120m civils and rehabilitation lot.
This covers construction and repair work to existing wastewater networks across the southern counties.
McAllister Bros has been appointed to the £48m sewer lining lot, which involves rehabilitation of pipework using trenchless technologies.
Lanes Group has also won the £26m manhole maintenance contract. This work includes repair and replacement of assets across Southern Water’s sewerage system.
The contracts were awarded through a negotiated process with prior competition. A total of 14 tenders were received across all lots, including submissions from non-UK and EU-based firms.
Southern Water said the framework would support delivery of its ambitions under the Water Industry National
Environment Programme and Water Resource Management Plan, and would allow greater integration of digital monitoring. Its sewer network already features 23,000 sensors and nearly 1,000 duration monitors.
The successful firms will be expected to deliver both reactive and planned maintenance and develop engineering solutions in line with the client’s technical standards. Southern Water has committed to a more proactive asset management approach during AMP8, driven by realtime data and condition-based monitoring.
The framework covers the period from 2025 to 2030. No further details have been disclosed regarding the architects or engineering design consultants involved.
RAUSCH unifies brands and strengthens UK presence
RAUSCH International Group has consolidated its brands - Rausch, minCam, Rausch-Rehab, and Dart Systems, under the unified RAUSCH name. This strategic move simplifies the group’s offering and reinforces its position as a leading provider of integrated CCTV inspection and trenchless sewer rehabilitation technologies.
RAUSCH now delivers comprehensive solutions across push cameras, crawler systems, leak testing, robotics, and UV curing, ensuring greater compatibility and efficiency for infrastructure projects.
In the UK, Dart Systems, acquired in 2022 have been rebranded as RAUSCH UK Ltd following the retirement of founder Stuart Arkell. New Managing Director Andrew Pang leads a seasoned team from their Radstock, Somerset, offering full sales, service, and support nationwide.
With a strong team, legacy expertise, and global innovation, RAUSCH UK continues to support trenchless professionals with cutting-edge, customer-focused solutions.
sales-uk@rausch.international
JBP and UNRE Vietnam forge a new training partnership for Vietnam
On 9th May 2025, immediately after Trenchless Asia, JBP Group’s CEO Börje Persson will be travelling to Ho Chi Minh City, Vietnam, to sign a memorandum of understanding with Ho Chi Minh City University of Natural Resources and Environment (UNRE). This will mark the beginning of an exciting new partnership between JBP as a complete trenchless solutions provider and UNRE and will be the first step towards a long-term collaboration to deliver specialised technical training courses in trenchless technologies and methods.
By expanding education and skills in trenchless technologies, techniques that minimise surface disruption, reduce project costs, and deliver better environmental outcomes, this collaboration will play an important role in strengthening Vietnam’s water and wastewater infrastructure management. This will ensure greater resilience of underground networks, all of which are essential to support the country’s urban development and sustainable growth goals.
The director of the university’s Center for Continued Education and the head of the Water Supply and Drainage
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Neo Air unveils next-generation emission-free excavation tech
Luke Read Founder and CEO, Neo Air Ltd
Neo Air Ltd, a pioneer in advanced air compression and industrial blower solutions, is transforming the No-Dig sector with its latest innovations in clean, compact and high-performance technologies. With a clear focus on sustainability, the company continues to lead the way in oil-free and energy-efficient air solutions for utility and infrastructure professionals worldwide.
At No-Dig Live 2024, Neo Air impressed visitors with its innovative product line. Now, the company is preparing to launch the nForce15, a highly mobile, battery-powered air lance, debuting in May 2025.
Designed to tackle challenging excavation environments, the nForce15 offers:
• Compact mobility – Easily maneuverable through alleyways and domestic spaces.
• Strike-free safety – A supersonic air nozzle that removes earth while safely
exposing underground assets without damage.
• On-demand control –Operators can fine-tune output for delicate work near fibre optics or roots.
• Zero emissions – Fully battery-powered with quickswap packs for extended use and oil-free operation.
“Our new solutions redefine how compressed air is used in the field,” says Luke Read, Neo Air’s Founder and CEO. “The nForce15 empowers contractors to excavate safely, efficiently and sustainably—anywhere.”
See Neo Air at Utility Week Live, NEC Birmingham, 20–21 May 2025, or visit www.neoairltd. com for full product details.
Contact: info@neoairltd.com
“
how
Our new solutions redefine
compressed air is used in
the
field. The nForce15 empowers contractors to excavate safely, efficiently and sustainably, anywhere
TBM success for CBBT
Herrenknecht delivers key progress beneath navigational channel
“ Every tunnelling project brings its own complexity, and this one required not only technical capability but strong customer trust. That trust made the difference
TBM “Chessie” at the Herrenknecht plant in Schwanau, Germany
Amajor milestone has been reached in the expansion of the Chesapeake Bay Bridge-Tunnel, one of the “Seven Engineering Wonders of the Modern World.” In late January, tunnel boring machine (TBM) “Chessie” completed excavation of the new Parallel Thimble Shoal Tunnel, a key element in eliminating a longstanding traffic bottleneck under the Thimble Shoal shipping channel.
Engineering a modern upgrade
Since opening in 1964, the Chesapeake Bay Bridge-Tunnel,
officially the Lucius J. Kellam Jr. Bridge-Tunnel has spanned 37 kilometers of alternating bridges and tunnels, connecting the Hampton Roads region with the Delmarva Peninsula. It carries over four million vehicles annually and was originally recognised by the American Society of Civil Engineers for its innovative design and engineering excellence.
In recent decades, widening works have expanded much of the route from two to four lanes. However, the original Thimble Shoal Tunnel remained a constraint, narrowing to just two lanes for approximately
2km beneath the shipping channel. The new parallel tunnel, set to open in 2028, will resolve this critical pinch point.
Herrenknecht TBM at the core
To excavate the new tunnel, the project’s joint venture team, Dragados USA and Schiavone Construction Company LLC deployed a tunnel boring machine from German manufacturer Herrenknecht. The custom-built Earth Pressure Balance (EPB) shield featured a cutting diameter of 13.21m, 7,000 kW of drive power and a torque capacity of 46,183 kNm. The machine was specifically
The big moment: breakthrough for the Parallel Thimble Shoal Tunnel
engineered for soft to medium soils with moderate water and earth pressures, conditions typical of shallow marine crossings like Chesapeake Bay.
Locally named “Chessie” through a community competition in Hampton Roads, the TBM was designed with enhanced durability, particularly in the excavation tools, to reduce the need for compressed air interventions. Special consideration was also given to the low overburden at tunnel entry and exit points on the man-made islands, where large boulders were expected.
Challenges below ground
Chessie’s excavation phase lasted approximately nine months, though not without setbacks. Early in the drive, progress was halted by a threemetre-high ship anchor lodged in the soil, a legacy artefact weighing several tons. The anchor was carefully cut and removed in situ, just ahead of the cutterhead, while the TBM was held in a specially constructed seal block.
Herrenknecht’s logistics subsidiary, H+E Logistics, supplied a custom belt conveyor system to handle spoil removal,
transporting material from the island shaft directly onto ships for offsite disposal.
Throughout the operation, Herrenknecht provided comprehensive on-site support, including dual project management roles and equipment assembly assistance. “This project was particularly complex,” said Michael Kimmeskamp, Board Member for Traffic Tunnelling at Herrenknecht. “It required a high degree of problem-solving expertise. Together with the customer, we overcame every challenge — and the result speaks for itself.” >
Joint success with TBM “Chessie”: The joint venture, consisting of Dragados and Schiavone, celebrated the project success together with manufacturer
Preparing for the final phase
With the tunnel fully excavated, work now shifts to internal lining, road construction and outfitting. Upon completion, the new tunnel will significantly improve traffic flow between
Virginia Beach and the Eastern Shore, enhancing both capacity and safety.
Steffen Dubé, President and General Manager of Herrenknecht USA, reflected on the collaborative achievement:
“Every tunnelling project brings its own complexity, and this one required not only technical capability but strong customer trust. That trust made the difference.”
At the time of breakthrough, John Hellman, Project Executive of the joint venture, summed up the achievement:
“Today was a monumental day for the Chesapeake Tunnel JV team. Our TBM ‘Chessie’ broke through the headwall to complete the tunnel drive for the Parallel Thimble Shoal Tunnel. This new tunnel will help ensure that commuters experience less congestion and a safer trip. Congratulations to everyone involved in this incredible project.”
The islands: Bridges and tunnels merge in the area of the islands. One of the islands was also the starting point for the Thimble Shoal Tunnel
The cooperation between the joint venture (Dragados, Schiavone) and the Herrenknecht service and project management team was of particular importance for this project
• Ability to transition liners to multiple sizes
• Multiple bends up to 90 degrees
• Increased consistency for calculating stretch and drawback
Product enhancement: HD GRS Cutterhead
By Jason Holden, Vice President, CRO – Akkerman Inc.
Guided auger boring is a proven trenchless method for installing small-diameter steel casing with precise line and grade control. However, upsizing to the final casing diameter can present challenges especially when subsurface conditions are not well-documented. In response, the Akkerman engineering team has redesigned the Guide Rod Swivel (GRS) Cutterhead to improve performance and adaptability across varying ground conditions.
Key design improvements
The new HD GRS Cutterhead features a tapered profile, which enhances the transition of cuttings and promotes
a more stable bore path during augering. This design refinement enables better material flow and overall bore accuracy.
Akkerman has also integrated high-strength, interchangeable tooling at the face and gauge positions. These tooling options can be tailored to specific ground conditions, providing contractors with flexibility and improved cutting performance in both soft and hard soils.
Compatibility and cost efficiency
One of the major benefits of the HD GRS Cutterhead is its compatibility with the existing bearing swivel used in the
previous model. This continuity allows contractors to upgrade cutterhead sizes without needing to replace the bearing assembly saving both time and cost.
Each cutterhead comes equipped with a lead casing to maintain bore alignment and ensure concentricity, especially if augers are pulled to clear obstructions. This feature supports continuous and accurate casing installation.
Range of sizes
Akkerman maintains stock of the most installed casing diameters 24, 30, 36, and 42 inch outside diameters (OD). Custom diameters are available
upon request. For applications requiring casing diameters larger than 42 inches OD, an intermediate bearing swivel can be added. This component provides the necessary bearing load and structural support for upsizing to 48 inches or greater, ensuring bore alignment is maintained over longer distances and more demanding conditions.
Commitment to innovation
At Akkerman, we’re committed to advancing the trenchless industry, through innovative equipment, refined installation techniques, and industry knowledge. For more details on the HD GRS Cutterhead or to speak with one of our experts, visit us at www.akkerman.com.
Masters of rehabilitation: IMPREGLiners set new benchmark in the Netherlands
Two IMPREGLiners, together weighing nearly 80 tons, were successfully installed in the Netherlands under exceptionally challenging conditions, marking a significant milestone in trenchless sewer rehabilitation. This ambitious project demonstrated the ideal application of light-curing pipe liners in a high-stakes environment.
A highly demanding construction project
The rehabilitation involved two DN 1500 sewers that had suffered severe structural damage from hydrogen sulphide (H2S). Positioned beneath a heavily trafficked roadway in the city of Leiden, the work had to be performed exclusively at night to minimise disruption.
The planning phase was intensively supported by IMPREG GmbH’s expert team, Francis Clauss, Oliver Vorlop, and Roland Hahn who collaborated closely with longstanding partner Kumpen NV Renovatietechnieken, led onsite by Willem Bollen, and with the City of Leiden. Together, they developed and executed a meticulous site strategy tailored to the complex environment.
Overcoming installation challenges
Trenchless rehabilitation using UV-curing technology proved to be the most efficient and costeffective solution. IMPREGLiners are manufactured to specification and delivered installation-ready, ensuring streamlined deployment.
The first DN 1500 liner, 265m long, with a wall thickness of 15.5mm and weighing 35.5 tons, presented a major logistical challenge. Using a conveyor belt, installation aid, and a 20t Bagela winch, the team installed the liner directly from a heavyduty transporter.
The second liner, weighing 36.5 tons, was pulled through the previously rehabilitated section over a 500-metre stretch, an even greater challenge. Glide foil was employed to protect the already-installed liner and ease the insertion process. The two liners were connected using a precision-engineered AMEX sleeve.
A masterful accomplishment
“The successful completion of this complex project within the specified timeframe is the result of our long-standing, trusted partnership with IMPREG, the exceptional quality of their liners, and the expertise of our on-site team,” said Gert-Jan Merkx, Managing Director at Kumpen NV Renovatietechnieken.
Alain Adloff, Sales Europe at IMPREG GmbH, who was present on-site, added: “This project showcases true teamwork and outstanding performance from everyone involved. Our production teams had never manufactured liners of this weight.”
Want to learn more?
Meet the IMPREG team and discover more about this standout project at ROKATECH 13 – 16 May 2025 in Kassel, Germany – Hall 11, Stand B02.
“ This project showcases true teamwork and outstanding performance from everyone involved. Our production teams had never manufactured liners of this weight
Installation of the IMPREGLiner with a conveyor belt
Smart rehab under pressure
Primus Line® excels in Inverted Siphon rehabilitation across continents
Inverted siphons, pressurised pipelines running under roads, rivers, and railways are among the most challenging assets to rehabilitate. Their U-shaped geometries, limited accessibility, and complex bends often render conventional or trenchless methods unfeasible. Enter Primus Line® Rehab: a flexible, fabric-reinforced lining system that delivers strength, adaptability, and environmental protection all with minimal disruption and maximum efficiency.
Used successfully in projects across Germany, the Czech Republic, and Canada, Primus Line® Rehab proves its worth in diverse, high-stakes environments.
Why Primus Line® rehab works
With its unique three-layer structure and patented connectors, Primus Line® Rehab is designed specifically for trenchless rehabilitation of pressurised pipelines. Its inner layer, either polyethylene (PE)
or thermoplastic polyurethane (TPU) is chemically and mechanically resistant. The core layer of seamlessly woven Kevlar® absorbs internal pressure and is up to ten times stronger than steel of the same weight, providing both strength and flexibility. The outer PE layer protects the system during installation and operation.
Capable of navigating bends up to 90 degrees and installation lengths of up to 2,500m, Primus Line® requires minimal equipment and site footprint
The liner folded into U-shape and coiled on reels saves transport costs thanks to its small footprint
making it ideal for use beneath waterways, roadways, or sensitive urban areas.
Three case studies, three countries - one solution
Germany: Flensburg’s
Subaquatic Siphon revived
A DN 300 drinking water siphon laid in the 1970s beneath Flensburg Fjord had become brittle and vulnerable. >
In Flensburg, 1,240 metres of Primus Line® Rehab were installed in one piece to renovate the fjord inverted siphon
With open-cut replacement deemed infeasible due to heavy harbour traffic and historical infrastructure, Stadtwerke Flensburg opted for a trenchless solution.
The challenge? The siphon ran beneath the fjord floor in a wide arc with multiple bends and
had to remain partially filled with water during installation to prevent buoyancy. The result? Germany’s longest single pullin of a Primus Line® Rehab liner 1,240m, was completed successfully, with careful pressure calibration and connector integration ensuring long-term durability.
Czech Republic: Restarting a river crossing after 5 Years
In Velké Meziříčí near Brno, a DN 200 cast-iron water pipeline beneath the Oslava River had been out of service since a major rupture. With numerous bends and difficult subsoil conditions, traditional trenchless methods and open trenching were ruled out.
Following a feasibility assessment, a local contractor installed a Primus Line® DN 150 liner. Using minimal space, an existing shaft and a small pit installation was completed within one week using highpressure water jetting and without traffic disruption in the city centre.
Canada: Winnipeg’s emergency leak repair
In Winnipeg, a leaking DN 250 steel drinking water siphon needed urgent intervention. The presence of multiple bends and constant water intrusion ruled out CIPP. Primus Line® Rehab,
Depending on the diameter, up to 4,000 metres of flexible pipe are rolled up onto the space-saving reel
Thanks to small excavation pits – an existing shaft on the left bank that is barely visible in the aerial photo and a slightly larger pit in a car park on the opposite bank (centre) –, traffic in Velké Meziříčí was able to continue flowing unhindered during the rehabilitation of the inverted siphon
certified for Canadian drinking water standards, offered the necessary flexibility and performance.
After thorough internal inspection and milling to remove sharp imperfections, the liner was pulled in within just 30 minutes. The entire installation, including pressure testing and disinfection, was completed in a single day restoring service efficiently and safely.
Pipe-in-Pipe: Double safety for new construction
Beyond rehabilitation, Primus Line® Rehab is now being used in new pipe-in-pipe builds offering dual containment without the cost and space requirements of steel or cast systems. For example, a new drinking water line beneath Germany’s A3 motorway used HDD to install an HDPE
jacket pipe, followed by a DN 250 Primus liner. Installation, inspection, and commissioning were completed in just six working days.
Sustainable. Flexible. Proven.
From historic harbours to city centres and beneath remote rivers, Primus Line® Rehab has demonstrated its exceptional capability in inverted siphon rehabilitation. Its lightweight, strong, and highly flexible liner structure makes it uniquely suited for the world’s most complex pressurised pipeline challenges—extending service life by up to 50 years with minimal environmental impact.
Solving underground challenges.
Existing manholes can be used as access points for trenchless rehabilitation with Primus Line® Rehab to reduce construction costs and earthmoving
Elevate your operations
RSM Lining Supplies: Elevating contractor performance through WRc approved and leak tight tested products
In the evolving world of sewer rehabilitation, reliability and performance are of the utmost importance. Contractors seeking to deliver consistent, high-quality results must now operate at the intersection of innovation and complianceRSM Lining Supplies Global Ltd stands out in this space by not only providing a range of WRc approved products but offering an expanding selection of CP308/CP655 and IKT leak tight tested solutions. These don’t just meet industry standards, but empower contractors to work more efficiently, responsibly, and competitively.
For contractors, using products that are WRc approved is more than a box-ticking exercise - it is a statement of professionalism. The WRc is a respected authority in water and environmental standards in the UK, and their accreditation represents the gold standard in product performance. Products bearing this approval have undergone rigorous testing to prove their resilience in the demanding, variable conditions found in sewer environments.
RSM’s WRc approved solutions — including their hot cure
“
By using our WRc approved and leak tight tested products, contractors are not merely adopting quality materials - they are future-proofing their operations
Epoxy, Pipe Aid kits, Speedy & UV Liner and their CIPP Lining & Patching Training Courses — give contractors an edge in bidding for public and private sector projects, where credibility and proven compliance are prerequisites. A WRc approved product ensures clients can move forward with confidence, knowing the materials meet or exceed required specifications.
Equally critical is the CP308 and the newly introduced CP655 infiltration tests (also moderated by the WRc), these tests determine a CIPP (CuredIn-Place Pipe) system’s ability to form a reliable, leak-tight seal under challenging conditions. RSM’s Epoxy Warm and Hot Cure resins are among the
first to meet these standards in over a decade, positioning contractors ahead of the curve in a market that increasingly demands infiltration control.
The need for a CP308 and 655 tested products in the UK market has become increasingly apparent over recent years, driven by ongoing efforts for water authorities to minimise the impact of water infiltration on sewerage systems. After extensive consultations with industry experts and stakeholders, RSM recognised the importance of addressing this challenge and began developing a solution aligning with the industry’s requirements. >
RSM’s Hot Cure Epoxy undergoing CP655 testing at the WRc’s headquarters
The cured result of RSM’s Warm Cure Epoxy undergoing CP308 testing at their Head Office
RSM’s Hot Cure Epoxy undergoing CP655 testing at the WRc’s headquarters
With previous CP308 tested systems no longer widely available, the introduction of their product line comes at a critical time for the industry. High levels of water infiltration in sewerage systems are straining pumping stations, increasing energy consumption, and impacting water treatment processes. Their new resins offer a solution that can enhance the efficiency of sewer systems by significantly reducing infiltration, thereby lowering operational costs and reducing environmental impact.
Their CP308 & 655 tested products are set to drive a positive change in the wastewater treatment process by improving system efficiency,
reducing energy use, and ultimately supporting further capital investments in the UK’s infrastructure.
For contractors, this translates to fewer callbacks, lower failure rates, and reduced environmental impact. RSM’s resins bond effectively even in wet conditions, ensuring structural integrity across pipe sections and lateral connections. These properties are not only essential for compliance but vital for longterm project success.
Beyond compliance and performance, RSM’s product offering is engineered for your convenience. Their state-of-theart impregnation facility ensures
liners impregnated with their Epoxy resins can be delivered to site ready to install, significantly reducing on site preparation time and labour costs. The extended pot life of both warm (CP308 tested) and hot (CP655 tested/WRc Approved) cure epoxy systems provides flexibility during installation— especially on complex jobs— whilst maintaining short cure times that reduce downtime on site.
Products like RSM’s UV and Speedy Liners also redefine installation efficiency. When coupled with RSM’s range of Sewertronics UV LED curing technology, or traditional UV curing technology, this ensures rapid, reliable performance with minimal space and energy requirements, features that support both environmental goals and logistical simplicity.
For more localised repair requirements, RSM’s range of WRc approved Pipe Aid offers a high-performance, no dig solution for the permanent and watertight repair of damaged pipes. The Pipe Aid range meets the specifications outlined in WRc’s ‘Drain Repair Book’, they are easy to use kits designed for efficient on site application, available in straight and radial varieties with options of winter, summer, and fast cure resin.
RSM doesn’t stop at product delivery. Their comprehensive CIPP training courses (Lining & Patching and Patching only) ensure that contractors not only use advanced materials but do so with the necessary technical expertise. Their courses aim to equip participants with a comprehensive understanding of all aspects of CIPP Lining & Patching, developing their knowledge and skills to confidently install in diameters up to 300mm.
RSM’s Hot Cure Epoxy undergoing CP655 testing at the WRc’s headquarters
This includes hands-on experience with both basic and intermediate techniques, ensuring that each participant gains a solid foundation in the essential processes and materials used in CIPP applications. This hands-on instruction allows teams to confidently expand their service capabilities and raise the bar on project delivery.
The IKT Test Centre is a supervisory body for CIPP liners and short liners, recognised by the German Institute for Construction Technology (DIBt). It is accredited to European Standards (DIN EN ISO/IEC 17025) for selected mechanical and technical tests on polymeric components of pipe and CIPP liner systems, and samples of GRP laminate. Back in 2022, RSM’s UV LED LT resin passed rigorous IKT leak tight testing when used in conjunction with their flexible inversion liner and diameter change Magmaflex. Like their epoxy resins, UV LED LT bonds directly to the pipe, offering assurance to the contractor and the end client that there will be no form of infiltration once the installation is complete.
RSM Speedy Liner
Trenchless Works visits Minicam Group’s UK headquarters
By Austen Lees, Editor, Trenchless Works
Irecently had the pleasure of visiting Stephen Harris, Managing Director of Minicam Group, at their impressive UK head office and manufacturing centre in Salford. During our discussion, we explored the group’s recent growth and strategic direction.
Minicam Group supports contractors and utility companies in maintaining the UK wastewater network. The group consists of four businesses: Minicam, which has over 30 years of experience in manufacturing push cameras
and crawlers; Sewertronics, the LED curing specialist; Dancutter, which produces robotic equipment for reinstating connections following relining; and the recently acquired Hathorn, a specialist in robust inspection push cameras.
Since being acquired by Halma in 2017, Minicam Group has focused on identifying acquisitions to accelerate growth. This targeted strategy aims to fill gaps in service offerings while ensuring that the acquired companies share key values, particularly
“There is significant opportunity for organic growth across the group’s key markets, pressures on wastewater networks from ageing infrastructure and rising populations have led Minicam to experience annual growth rates in their core markets of between 5% and 10%
a commitment to providing exceptional aftercare for customers across all brands.
This dedication to service is evident in the group’s recent acquisition of Hathorn, a manufacturer that distributes over 1,000 products annually, primarily for the domestic plumbing trade. Many of Hathorn’s push cameras utilise Wi-Fi connections for easy linking to users’ iPhones or tablets, making them ideal for household inspection jobs as well as larger contractors or utilities seeking to enhance their inspection capabilities.
Minicam’s existing range of equipment naturally supports those looking to scale up or requiring more data and reporting capabilities.
During my conversation with Stephen, he acknowledged the need for a period of consolidation, stating that: “There is significant opportunity for organic growth across the group’s key markets, pressures on wastewater networks from ageing infrastructure and rising populations have led Minicam to experience annual growth rates in their core markets of between 5% and 10%.”
There is also the obvious opportunity to expand the Minicam business in the US utilising the Hathorn network, and for the reverse to happen in the UK, where the Hathorn products will be sold under the Minicam brand in the company’s familiar orange livery. This gives Stephen confidence that the company can achieve its target of 10% growth year on year without diversifying into other utilities such as oil and gas. >
Regarding product development, Stephen emphasised the company’s mantra of “making sewer maintenance easy” and identified opportunities in the core markets that can be leveraged by providing robust, reliable, and easy-to-use equipment, backed by highquality service. The team sees little need for “all-singing, alldancing” equipment, focusing instead on the natural evolution of existing solutions. This strategy may include expanding their strengths in small diameter main line and lateral CIPP repairs to larger diameter pipes, potentially leading to the development of larger relining and crawling equipment.
This focus doesn’t, however, suppress Minicam’s desire to innovate. It was interesting to learn about a £1.6 million project funded by Pipebot Patrol, which will see Minicam collaborate with Northumbrian Water, Sheffield University, and Environmental Monitoring Solutions to develop a sewer robot capable of crawling through and inspecting miles of pipework, raising alerts at the precise locations of developing blockages.
Our conversation also touched on the increased use of AI, particularly in report generation and ensuring that the correct footage is recorded for their production. It was refreshing to hear a practical approach to
“ Each
AMP cycle is unique, with this one defined by contractors refraining from placing orders until contracts were secured. Although last year was perhaps slightly quieter than expected, major contractor orders are now in place, and orders from smaller operators are following, positioning 2025 as a potentially record year
AI that emphasises support for operators rather than aiming to replace them entirely.
The activity levels at Minicam’s impressive UK manufacturing facility clearly indicate that AMP 8 funding is starting to flow through the market. Stephen noted that: “Each AMP cycle is unique, with this one defined by contractors refraining from placing orders until contracts were secured. Although last year was perhaps slightly quieter than expected, major contractor orders are now in place, and orders from smaller operators are following, positioning 2025 as a potentially record year.”
When asked about changes he would like to see in the UK market, Stephen pointed to its highly cyclical nature, characterised by acute peaks and troughs in demand around AMP cycles.
This volatility makes it challenging for manufacturers to meet the requirements of major contractors, especially concerning larger solutions such as vans, which are more resource- and space-intensive, and therefore harder to scale rapidly compared to cameras.
I would like to extend my thanks to Stephen and his team for their time and insight during my visit. It was a pleasure to learn so much about the business and to see firsthand their remarkable facility. I can certainly understand why, unlike many others, they have no difficulty with recruitment!
New approaches at Trenchless Asia 2025
Frank Reilly Director JBP’s Trenchless, Training Programme
JBP will be celebrating the 5th anniversary of delivering its very successful and popular programme of Applied Trenchless Technology Workshops at Trenchless Asia 2025 in Kuala Lumpur.
The success of the program has been very largely down to three factors—first and foremost, thanks to the fantastic contributions and participation of a very wide spectrum of experts drawn from across the sector. Secondly, the very deliberate emphasis on the
applied aspects of trenchless methods and technologies covered in the sessions of the programme – practical insights based on real-world experiences, and often backed up with reference to actual case studies. And finally, the engagement and interaction between presenters and those attending, often facilitated by a smaller, more intimate environment than the main conference auditoriums.
All of the above allows us to facilitate a great environment for discussion and come close-up, hands-on knowledge transfer.
This year, we’re shaking things up a bit and changing the structure of the program. Maintaining the strength of the three pillars mentioned above, we have structured the programme around several key themes we consider to be of particular interest and resonance within the trenchless sector and of particular interest to those who will be visiting
Trenchless Asia. These themes include New to Trenchless, New Innovations, Focus on Malaysia, Applied Technologies, and Educating the Next Generation.
For those who may be new to trenchless technologies, methods and the vital role they play in water and wastewater infrastructure management and maintenance, there is no better introduction than from Dr Dec Downey, current president and past chairman of ISTT, with more than four decades of experience and expertise to share from the heart of the industry.
Alongside an introduction to trenchless, there is always space to highlight some of the most recent and exciting new innovations. New technologies and methods have always driven the sector, and now is no exception. We are delighted to include in the programme insights into the use of AI, machine learning and the use of drone technologies that can assist with access, more accurate assessment and predictive and preventative maintenance for water and wastewater networks. It’s an exciting time to be working in this industry!
It’s always important to give context to where our trenchless technologies and methods are used and applied and to recognise the specific challenges that can arise. Focus on Malaysia will provide insights from the perspective of network operators and contractors and, with actual case-study reference, from within the greater Kuala Lumpur area and, importantly, outside from Sabah.
The session on Applied Technologies does very much what it says on the label. It will showcase the practical application of three trenchless methods: UV-CIPP rehabilitation for sewer pipelines, taking examples from installations in Malaysia using the BKP Berolina Liner; pipe joint rehabilitation using the Uhrig Quick-Lock system; and finally, small diameter cleaning and rehabilitation using tools out of Picote’s extensive range of equipment.
The programme will come to a close on the second day with a round table discussion on Educating the Next Generation. This session should be a fascinating exchange of ideas and comments on an essential topic that is not only very close to the core focus of JBP’s Trenchless Training programmes and many others across the sector but should rightly preoccupy all organisations, utilities, companies and contractors with any interest in this sector and its ability to continue to innovate
and meet the future demands of managing our vital water and wastewater infrastructures effectively. The discussion will be informed by the exchange of views, opinions, experience and expertise of the aforementioned Dr Dec Downey, Professor Sam Ariaratnam (Chair of Construction Management & Engineering at Arizona State University), En. Faizal Ottman (President of the Malaysia Association for Trenchless Technologies), and Dr Choo Chung Siung (from the Sarawak Campus of Swinburne University). It promises to be a great way to bring to a close the programme for TA205 – looking to the future and the as-yetuntapped and undiscovered potential of the next generation.
So, there you have it – a packed programme for Trenchless Asia 2025. We are delighted to be working alongside Westrade as their training partners for their Trenchless event. Our thanks to Paul and all the Westrade team for making this happen.
I wish all those who are lucky enough to be in wonderful Kuala Lumpur for TA2025 a great exhibition and conference and I hope to welcome you to any or all of the workshops.
A quick p.s.: If you are not able to make it out to Kuala Lumpur, we always make an effort to share the presentations from the workshops on the JBP platform. I will keep you when they become available.
Next issue: Questions, questions, questions?
From engineer to industry leader
Faizal Othman on Malaysia’s water challenges and the power of Trenchless Technology
In the lead-up to Trenchless Asia 2025, Faizal Othman shares insights with Trenchless Works on infrastructure innovation, nonrevenue water projects, and the evolving role of trenchless methods in Malaysia’s sustainable development.
Faizal, tell us a bit about your early career and how you became involved in water and wastewater management.
I graduated with a Civil Engineering degree and began my career in the early 1990s with SMHB, a leading water sector engineering consultancy in Malaysia. That role allowed me to work on major water infrastructure projects early on. But a particularly formative experience was a collaboration with the UK firm Binnie and Partners, where I was responsible for deploying hydraulic loggers in water networks as part of a largescale digitalisation and system analysis initiative. It was then that I truly grasped how critical the water network is to the overall supply system.
What would you say are the highlights of your career?
One of the biggest highlights has to be the opportunity to
lead the national wastewater company in Malaysia, Indah Water Konsortium (IWK). While the focus was on strengthening the financial position, which is an interesting mix of disciplined accounting reporting while encouraging bottom-up innovative trials and creating a compelling brand with its stakeholders. The company stabilised its cashflow position, widen its revenue streams through innovation for resources recovery, led communities through river of life campaigns, and strengthening the corporate narrative of New Life for Water.
I’m also proud to help grow companies, establishing itself not just through key projects but a business model focused on non-revenue water projects. It is truly rewarding to see the effort continue today, still creating high value skills and long-term opportunities for the graduates and young aspiring engineers within the industry.
What are the biggest opportunities for the Malaysian water and wastewater market?
Investing in human capital is key; we need to equip our workforce with the right skills and expertise, and a clear pathway on how these skills will create value for their careers. Advancing the application of technologies can unlock real economic value for the sector and the nation.
What are the biggest challenges?
For me it’s raising awareness. It’s essential for people to understand how vital the water sector is to the country’s development and prosperity. The challenge is also in how we understand the challenge. Are we here to just solve problems or are we here to create solutions?
Faizal Othman
Raising awareness should be about shifting perception. If we want people to care, we have to help them feel the impact of the water sector in their daily lives. When we move from solving problems to creating solutions; we should not just build infrastructure, we build trust, opportunity, and hope.
How did you become involved with the Malaysia Association for Trenchless Technologies (MATT)?
During my time at IWK, I saw the need for a platform that could accelerate the adoption of trenchless technologies into the management of sewerage services, in expanding the sewer network system, in ensuring the existing vast sewer network continue its service, and in supporting the modernisation of the water system as a whole. That’s when the idea for MATT was born, to promote these solutions and highlight their broader economic and environmental value.
What role does MATT play in helping its members leverage these opportunities and increase the use of sustainable trenchless technologies?
In rapidly developing economies, infrastructure must meet growing demand without compromising its surroundings, both the environment and quality of life. Trenchless solutions help strike that balance, and MATT supports this by advocating for sustainable practices, facilitating knowledge exchange, and creating visibility for cuttingedge technologies.
What do you see as the future for MATT? How will it grow and evolve?
MATT can play a vital role in ensuring technological advancement and practices in the trenchless community, which in turn will create value for society and the economy. It will also shine a light to the new generation of water and infrastructure practitioners (engineers, planners, policymakers, and researchers) as critical drivers for economic growth.
In your opinion, what are the priorities for the Malaysian water and wastewater market?
Malaysia’s water and wastewater sector stands at a critical juncture. As the country experiences rapid urbanisation, industrial expansion, and climate variability, the infrastructure that supports clean water supply and sanitation must evolve beyond traditional models.
The three guiding principles, delivering value-for-money
infrastructure, reducing environmental impact, and improving quality of life, form the core of a resilient, people-centric strategy. These are include the growing adoption of trenchless technologies in congested urban settings, the expansion of water reuse systems for industrial applications, and the deployment of AI and digital twins for proactive asset management.
Special attention should be given to reducing non-revenue water (NRW), enhancing sewer rehabilitation programs, and embedding sustainability in procurement and planning frameworks. We should build collaborative model that brings together public agencies, private operators, technologists, and communities to ensure water infrastructure becomes an enabler of national prosperity, not just a response to infrastructure gaps. >
Ultimately, the question is not just how we solve today’s challenges, but how we design and deliver solutions that elevate quality of life for future generations.
What are some of the region’s major water and wastewater infrastructure projects?
These include large-scale centralised wastewater systems to ensure adequate treatment of wastewater, not just to protect the environment but also to capture and recover the valuable resource for reuse before returning to the environment. Water reuse for industries requiring high grade water require extensive new networks to be planned in already congested areas. Data centres which are the heart of a data driven decision support systems such as blockchain and AI, require enormous resources to operate. Developing economies with lower cost of startup capital can immediately benefit from the boom, however the right planning and careful resource allocation is needed.
Non-revenue water reduction and sewer rehabilitation projects are needed to sustain
and improve water supply and sewerage networks. Network asset systems need continuous systematic, structured, data driven maintenance as part of continuous asset management. While such operational problems as are now getting policy and budgetary support from respective agencies, trenchless technologies must prove its value by achieving the long-term economic benefits to continue enjoy and sustain these critical public sector support.
While trenchless technologies may seem like a small part of the broader infrastructure landscape, they are a critical enabler of progress, especially in densely populated, economically ambitious regions. The challenge is not just in proving their technical merit, but in demonstrating longterm value, environmentally, economically, and socially, to sustain support and funding from public agencies.
How do you expect to see trenchless technologies deployed in their delivery?
Further integration with digitisation and predictive
modelling though data capture, access to historical data with validation and integrity, enabling AI driven decisionmaking solutions through digital twins of network management. With AI-driven digital twins becoming more mature, trenchless technologies can be deployed as part of proactive asset management. Instead of waiting for failures, utilities can simulate network stress, predict degradation, and deploy trenchless solutions before failures occur, minimising disruption and maximizing resource use.
Integration with urban planning redefined by data integration. Trenchless methods can be embedded in city models, where planners, engineers, and AI systems collaborate in real time. These technologies won’t just be construction techniques, they’ll be strategic tools, visible in the planning phase, optimized for cost, traffic impact, and carbon footprint.
Network asset systems need continuous systematic, structured, data driven maintenance in non-revenue water reduction and sewer rehabilitation projects to sustain and improve water supply and sewerage networks. While there projects are now getting policy and budgetary support from respective agencies, trenchless technologies must prove its value by achieving the long-term economic benefits to continue enjoy and sustain these critical public sector support.
What needs to be done to increase the use of trenchless technologies in installing and maintaining water and wastewater infrastructure?
We need to focus on creating and delivering economic value
for society while providing sustainable solutions for the environment. We must then ensure people are aware of these benefits.
The solutions must not only benefit us as practitioners but most important is the public’s perception; the recipients of the services, technology, products must also see, feel and enjoy the benefits. How does the deployment of trenchless technologies in infrastructure projects have significantly improve their quality of life? We have the answers, but have we truly appreciated the question? We already have the tools, technologies, and knowledge to transform how we build and maintain our cities. The next frontier is not more innovation in machines, but more innovation in connection, to the people we serve.
What advice would you give to young people considering entering the water and wastewater industry?
I’d say that while you may not always start your career doing what you love, but in the water industry, you’ll find the chance to love what you do because it matters.
This field is about more than pipes and pumps, it’s about protecting public health, enabling sustainable cities, and making a real difference in people’s everyday lives. You’ll work on challenges that are as old as civilisation, but with tools that are on the cutting edge, from trenchless technologies and smart infrastructure to AI and digital twins.
Trenchless technologies have a huge role to play in the expansion and modernisation of our water and sewer network infrastructures, as well as
ensuring we can adequately inspect and maintain existing systems. Our modern lifestyle in the AI world, designed to free up the human passion for creativity and analytical thoughts, will continue to grow and demand for resources. It is our responsibility as industry practitioners, in this case trenchless technologists, to rise up to the challenges. Perhaps we should rise from being underground heroes to now be visible in the world’s modern landscape. We can and should continue to provide solutions that have an impact, enter into conversations that matters, and for that matter, be passionate about being part of the solution. I have seen new ideas and growth in implementation for network management, from analysing of static records in old schematic plans, to being aided by AI driven digital twins; both have valid skills for network management, but obviously one has a greater advantage of being out of the trenches.
The shift from being “underground heroes” to “visible players” in the sustainable infrastructure movement means trenchless professionals will need to be communicators, advocators, and systems thinkers, engaged in cross-
sector conversations on climate resilience, urban equity, and smart growth.
The beauty of this industry is that it’s evolving. Whether you’re a problem-solver, a builder, a data enthusiast, a communicator, or an innovator, there’s space for you here.
Your career path doesn’t have to be linear, it’s about growth, discovery, and finding purpose, and some say, your legacy.
Why are events such as Trenchless Asia important in promoting the use of sustainable methods in delivering and maintaining infrastructure?
Trenchless Asia provides an unparalleled platform for people to learn about the capabilities and benefits of these technologies, showcase the latest equipment, and explore new ways to implement ideas.
Trenchless Asia takes place at the Kuala Lumpur Convention Centre, Malaysia, on Wednesday 7th and Thursday 8th May. For more information, visit www.trenchlessasia.com.
GRUNDOBURST systems are used to replace defective pipes up to ND 1,200 quickly and gently underground, without reducing hydraulic capacity.
The result is a new, loadbearing pipeline in the existing route. In addition, complete renewal allows
even more hydraulic capacity to be created by pulling in larger diameters.
Pipe rehabilitation could not be more sustainable.
Find out more online or get in touch:
T: +49 2723 808-0
M: info@tracto.com
Goodeng Machine: Delivering global excellence in Trenchless Technology
Founded in May 2002, Goodeng Machine is a national high-tech enterprise specialising in the research and development, production, sales, and service of trenchless machinery, piling machinery, and mining equipment. Its primary product lines include the GS series of horizontal directional drilling (HDD) machines, the GPY series of static pile drivers, and the GM series of surface drilling machines and accessories.
In 2022, Goodeng Machine marked a major milestone with the groundbreaking of its first overseas manufacturing base in Thailand, spanning nearly 80,000 m². This new facility complements its two existing manufacturing bases in China, which together cover more than 100,000 m². With a workforce of over 600 employees and several modern, intelligent production
lines, Goodeng Machine has the capacity to deliver up to 3,000 sets of various machinery annually.
Goodeng products are not only distributed across China but are also exported to nearly 50 countries and regions worldwide. By continually expanding its global marketing network, Goodeng Machine fosters resource sharing and delivers greater value to its customers.
Project Highlight: HDD Installation for village irrigation water supply
• Specification of Pipelines: OD 400mm HDPE, PN16, SDR 11
• Crossing Length: 900 feet
• HDD Machine Model: GOODENG GS430-LS
• Construction Date: February 2024
Project Overview:
As part of a CSR (Corporate Social Responsibility) initiative, Goodeng Machine successfully delivered a critical river water supply project. Using the GS430-LS HDD machine, contractors completed a 900-foot crossing to install a 400mm HDPE pipeline. The pipeline now transports fresh water from the Irrawaddy River to support village irrigation systems, boosting agricultural productivity and enhancing local living standards.
This project highlights Goodeng Machine’s commitment to not only engineering excellence but also social impact, underlining the company’s ability to execute complex trenchless solutions reliably and efficiently.
International No-Dig events brought to you by the industry's world experts
2
NO-DIG ROADSHOW SERIES 2025
25 June 2025
DoubleTree Hilton, Sheffield Park, Sheffield
TRENCHLESS MIDDLE EAST 2025
Kingdom of Saudi Arabia 2025
TRENCHLESS INDIA 2025
9 - 10 July 2025
Chennai, India
NO-DIG ROADSHOW SERIES 2025
With the UKSTT Annual Awards Ceremony
2 October 2025
Tortworth Court, Bristol
TRENCHLESS MOROCCO 2026
11-12 February 2026
Marriott Hotel, Rabat
TRENCHLESS MIDDLE EAST 2026
Dubai 2026
TRENCHLESS ASIA 2026
10 -11 June 2026
Queen Sirikit National Convention Centre Bangkok, Thailand
NO-DIG LIVE 2026
29th September – 1st October 2026
NAEC Stoneleigh Park, Warwickshire
NO-DIG ROADSHOW SERIES 2026
FUTURE EVENTS
A message from the Chair
We are already well into spring and hopefully the temperatures are on the rise. However, even with the recent dry spells the Water companies are still making the news for the wrong reasons. On a positive note, the media focus on the pollution issues which are exacerbated by our aging infrastructure offer plenty of opportunities for Trenchless Technologies to be deployed. Be it Investigation/ assessment, Rehabilitation or New Installation of pipelines and other underground assets.
UKSTT recently held it’s second council meeting of the year and we had plenty of fruitful discussions regarding how we progress as a society and offer more value to our members. As a society set up for the promotion of Trenchless Technology for the public benefit, we are aware that we need a greater diversity of membership to reflect all sectors including Highways, Rail, Gas, Renewables etc. as well as Water and Wastewater. So, if you are involved in the above in any way, please get in touch by emailing admin@ukstt.org.uk .
We are keen to grow education opportunities to ensure the Trenchless Technology knowledge reaches the broadest audience. In fact, our next event on the 15 May at 2pm, covers this area rather well - New to Industry Network Online – has Trenchless Rehabilitation as the main focus. Further details can be found here https://www. ukstt.org.uk/calendar/new-toindustry-network-online/ or to
receive the link to the meeting email admin@ukstt.org.uk
There is also an ISTT Webinar covering the design of pressure pipe liners on 22 May free to attend for all UKSTT members. To register please follow this link https://us02web. zoom.us/meeting/register/ rwd4urqoR7e5MquB5sYLCg#/ registration
Preparations for the Sheffield No-Dig Roadshow taking place on the 25 June at the DoubleTree by Hilton Sheffield Park, Chesterfield Road, Sheffield are well underway & our Technical & Education subcommittee Chair Dr Iain Naismith has managed to arrange a visit to Sheffield University Ground Engineering department the afternoon before so again please get in touch if interested.
As always, please let me know of any thoughts or ideas you may have, I will be pleased to discuss these with you. Thank you again for the support of our members, council and of course Lynn, Linda and Tammy.
Finally, our 2025 UKSTT awards portal is now open on the website https://www.ukstt. org.uk/award-categoriescriteria-2025/ It’s now easier than ever to enter with plenty of guidance available if needed. Closing date IS 4 July, not easy to forget!
Kind regards Graham
Graham Howard, Chair, UKSTT
Society News brought to members by Trenchless Works
Successful online event for UKSTT’s New to Trenchless Industry Network (NtTIN) highlights future opportunities
The NtTIN’s 2nd event, focusing on New Installation, fosters knowledge sharing and community engagement in trenchless technologies.
The New to Trenchless Industry Network (NtTIN) held its 2nd event online on 13th March 2025, attracting a significant number of attendees eager to enhance their understanding of trenchless technologies. With a primary focus on New Installation, the event featured a distinguished panel of speakers, including programme lead Silvana Alfieri, Iain Naismith, Tim Sargent, Roger Wahl, Chris Brodie, and Peter Guilliatt.
The agenda began with a recap of the NtTIN’s mission and resources available to participants, followed by an overview of New Installation through expert presentations. Attendees engaged in a lively Q&A session, fostering valuable discussions. A Continuing Professional Development (CPD) certificate was also made available to all participants,
underscoring the event’s commitment to professional growth.
“The NtTIN is dedicated to supporting individuals new to the trenchless industry, helping them navigate the available resources while building a connected community,” said Silvana Alfieri, programme lead. “Our events not only offer knowledge but also create networking opportunities that are essential for the future of our industry.”
The event’s outcomes included extensive knowledge sharing, networking opportunities, and plans for future events. The next meeting is scheduled for 17th July at 2pm, focusing on rehabilitation. Interested participants can email admin@ ukstt.org.uk for the meeting link.
The NtTIN aims to engage and support newcomers to the trenchless industry, fostering a deeper understanding of trenchless technologies and promoting awareness of learning opportunities to address future challenges.
About the New to Trenchless Industry Network (NtTIN): The NtTIN is committed to supporting professionals new to the trenchless technology field. Our mission is to create a connected community that shares knowledge and resources, ultimately enhancing the industry’s capacity to tackle future challenges.
Asia’s Leading Exhibition for Trenchless Technology and Underground Infrastructure 10–11 JUNE 2026
WHY EXHIBIT?
• Trenchless Technology
• Underground infrastructure
• Underground Utilities
• Pipeline technology
• Highways
• Trenchless Solutions for Urban flooding
Visitors will be coming from over 40 countries including Malaysia, Philippines, China, Singapore, Thailand, Indonesia, India, Japan and Europe representing the following industries:
For more details regarding exhibiting and sponsorship opportunities please contact: Paul Harwood | pharwood@westrade.co.uk Trevor Dorrell | tdorrell@westrade.co.uk or +44 (0)1923 723990
Figures from 2024 Event
1456
64
The MOST POPULAR Trenchless Event in the intersection of EUROPE, ASIA and MIDDLE EAST
“This year, we allocated more than 1 Trillion Liras (33 Billion USD) from the central government budget to heal the earthquake wounds and build more resilient cities in the Türkiye Century.”
Cevdet
Yılmaz, Deputy President of Türkiye, 05 February 2024
SOCIETY
NEWS
A message from the Chair
Dear ISTT members
As you may know we will have International No-Dig 2025 in Vancouver. It is about time for you to plan your trip. Please check the conference website to register to the conference and exhibition. We will also have our International Council meeting, awards to deliver and elections to vote; in addition, we will have chairman dinner and welcome reception to integrate your professional network.
According to our updated calendar, you may be aware that we will have more national, regional, international No-Dig events in 2025, so please do not forget to check the ISTT event calendar in the ISTT website. In 2025, I have attended the No-Dig events in Tianjin (China), Denver (USA), and Krakow (Poland).
I plan to attend the other NoDig events in Suzhou (China), Kuala Lumper (Malaysia), Milan (Italy), etc. I hope that we could meet on these events before the Int No-Dig Vancouver.
There are more bi-lateral and multi-lateral cooperation between regional societies in Europe and Asia could be essential in developing new technologies and good business for the need in different regions.
Through the regional events, the organising societies can more successfully attract the spotlight by integrating the governing sector, consultants, contractors, suppliers in trenchless business, and also create more cooperation between the affiliated societies in their region. Therefore, I strongly suggest you consider to attend these local and regional No-Dig conferences. In addition, we have started the 2025 ISTT educational webinars as usual, please do not forget to check the notice and register in ISTT website.
As a member of ISTT, I hope you could contribute more input to our strategic plan and attend the committees, if possible, because you are the owner of ISTT. Please feel free to give us your comments or suggestions to our society and our new website, as ISTT aims to improve our services to our affiliated societies.
All The Best
Keh-Jian (Albert) Shou Chair, ISTT
Keh-Jian (Albert) Shou, Chairman, ISTT
ISTT News brought to members by Trenchless Works
Tianjin Krakow
Krakow
Call for ISTT fellow is now open
ISTT Fellow Program
In recognition of long-term involvement and contributions to the ISTT, the ISTT Board established the ISTT Fellowship in 2019. This prestigious award honors individuals who have shown exceptional dedication to the ISTT and made a significant impact on the trenchless technology community. See the past fellows from HERE. The nominations for Fellow membership for 2025 are now open.
Criteria
• Have been an ISTT member (or worked for a company holding an ISTT Corporate Membership) for a cumulative total of at least 15 years (gaps in membership are permitted and membership can either have been through an ISTT Affiliated Society or as an International Member in the case that there was/is no ISTT Society in that region).
• Have registered for and attended at least 12 International No-Dig Conferences (exhibit only or 1-day registrations are not counted as full attendance).
• Had a minimum of 5 technical papers included in ISTT Conference Proceedings.
How to apply
An ISTT Member wishing to be considered to be named an ISTT Fellow should submit an application via the online form providing :
• Name, address, email address, phone number
• Half- to one-page bio sketch
• A list of the years of ISTT membership with Affiliated Society name, category of membership (i.e. as an individual or under a corporate membership), and corporate membership name if pertinent.
• A list of the ISTT International No-Dig Conferences attended as a full registered participant.
• Citation information for the papers published in ISTT Conference Proceedings.
• A list of the years of services and position with Affiliated Society
Submit Application
Selection Process
Once the ISTT has verified the data submitted, the candidate’s name will be considered by a special review committee. Applications that are sent forward by the
review committee will then be examined by the ISTT Executive Council before the final decision is made. The granting of Fellow status is based on significant accomplishments in the field of trenchless technology as demonstrated, for example, by work experience, by publications, by inventions, by technology advancements, or by mentoring of individuals.
The special review committee is also empowered to make its own nominations for ISTT Fellow in special cases where an individual has made notable technical and/or professional contributions to the ISTT over a long period of time but does not meet specific aspects of the standard eligibility criteria.
When approved, the individual will be entitled to refer to themselves as “ISTT Fellow” or “Fellow of the International Society for Trenchless Technology” and will receive a certificate confirming their status as ISTT Fellow.
The ISTT Fellow designation is a continuing recognition but, to retain the ISTT Fellow designation, the person in question must remain an ISTT member in good standing either as an individual member or under a Corporate Membership. Once an ISTT Fellow status has lapsed, the individual will still be able to list the former status as ISTT Fellow with the years that the status was held. To apply to be reinstated as an ISTT Fellow, a letter requesting a reevaluation should be submitted to the ISTT Executive Director.
IbSTT promoting Trenchless at SMAGUA 2025
SMAgua is Spain’s largest biannual technological showcase for the water, wastewater and environment industry. It attracts professionals from all over the world who find a wide showcase with the latest equipment and technologies applied to the water cycle. The event, with more than 50 years of existence, has become the essential meeting point for the sector thanks to its clearly innovative position, the quality of its technical conferences and the numerous presentations of products, equipment and technological solutions.
IbSTT, together with many of its members, exhibit at SMAGUA, and IbSTT is active in promoting Trenchless technologies, organising and hosting a day of technical papers and presentations from many of its members from across the sector.
JBP were pleased to be among IbSTT’s members invited to give a presentation in its conference programme.
IbSTT’s President Juan García Aparicio (Centre), JBP’s MD Börje Persson (2nd left), IbSTT General Secretary Elena Zúñiga Alcón (3rd left), JBP’s Sales Manager Markus Persson (5th Left) and other members of IbSTT at IbSTT’s Trenchless programme at SMAgua 2025
IbSTT’s President Juan García Aparicio (Centre), JBP’s Sales Manager Markus Persson (Left) and JBP’s Marketing and Promotions Manager at the JBP stand at SMAgua 2025 before doors open!
Call for No-Dig Awards is now open
ISTT annually recognises trenchless achievements through its No-Dig Awards program. Four topics are eligible for this Award: academic research or training aid/ course; trenchless project completed; new machine, tool, material, system or technique introduced; student or young professional paper. The Awards are presented yearly at the ISTT’s annual International No-Dig Conference. Since 1986, ISTT has recognised more than 60 trenchless organisations and individuals through this program. Please see HERE for the past winners.
Please read below before your submission
• Entries to the categories “2- Trenchless Project” and “3- New Technology” are limited to ISTT (Affiliated Society) members who have corporate membership. If you are not sure of your membership type, please contact your local society.
• Any award application must
be endorsed by the Affiliated Society where the activity took place or to which the applicant belongs (no proof documents required).
• The award-giving ceremony will take place during International No-Dig Vancouver/No-Dig North (27-29 October) but the attendance is optional.
The following items are required to complete your submission.
1. A 200-word summary.
2. A complete paper (in a single PDF file - see a sample HERE).
3. Two images representing your entry.
Closing date: 30th July (17:00 US EDT)
You can modify your submission until the deadline using the link provided in the confirmation email.
Submit Entry
How to submit
Applications must be in English and should be prepared with the below criteria in mind with a maximum of 1,000 words supported by suitable illustrations. One or two images representing your entry should also be submitted. Specify the category of the award from below and send it via the entry form.
Note: An example is provided here to assist you in creating an entry (not a template). This example is for the Project category, so please modify it to fit your category.
The four categories below are eligible to receive Awards, as shown below. Awards may not be made in all categories in a given year.
• Academic research or training course.
• Trenchless projects completed (projects completed within a year or two) are limited to corporate members.
• New technology (tool, material, system or technique introduced)limited to Corporate members.
• Student or young professional paperMembers enrolled in college or university, or spending at least half their time on academic course work.
The aim of ISTT is to promote the science and practice of trenchless technology, and the Awards are to raise the profile and status of the Society and its Award Winners. All award winners (1) are recognized at the Gala dinner and presented a trophy and certificate, (2) are featured in an article in Trenchless Works (official magazine), (3) are added to the published list of ISTT award winner role of honor posted on the ISTT website, and (4) are authorized to use the ISTT logo on promotional material related to the award activity or recipients. In addition, the winner may be afforded an opportunity to make a brief presentation on the activity that received the award at the Conference time and schedule permitting. The student award winner receives a small cash award and limited financial travel assistance to attend the Conference.
Criteria
The selection criteria for the awards are as follows:
• Does the entry make a contribution to the advancement of trenchless technology world-wide?
• Does the entry contribute to protecting the environment and/or reduce social costs?
• Are the above benefits clear from the entry?
• Is the entry innovative, ingenious, elegant or novel?
ISTT educational online seminar: ASTEE recommendations for the design of pressure pipe liners
Thépot Ph.D., Consultant, France
Thomas
LE FLOCH Expert & Development Engineer, Water Dept, Scientific and Technical Center for Building (CSTB), France
Date: 22nd May 2025, 14:00-15:00 GMT
Speakers:
• Olivier Thépot (Ph.D., Consultant, France
• Thomas le Floc’h (Expert & Development Engineer, Water Dept, Scientific and Technical Center for Building (CSTB), France
Register Now!
Overview
The ASTEE working group for the rehabilitation of pipelines published in 2014 a calculation method for gravity pipe liners, known as 3R2014. This method was subsequently improved and republished in MOP 145 by the ASCE in the United States. Based on this success, the working group decided to develop a dimensioning method for pressure pipe liners, utilizing the latest research and experiments conducted primarily in Canada at Queen’s University. This new method adheres to the principles of limit state calculation, also known as Load and Resistance Factor Design (LRFD).
The method involves the verification of eight limit states, which represent modes of failure. During the online seminar, we will present these limit states, three of which specifically address the longitudinal resistance of the liner. These include the effects of differential settlement (LS6) and seismic wave impact (LS7),
which are not considered in the ASTM F1216 method.
It is important to note that this new method is not based on the AWWA qualitative structural classification outlined in the M28 manual, which presents certain challenges that we will discuss in detail during the webinar, particularly how to translate them into equations.
Dr Olivier Thépot graduated from the Ecole Nationale des Ponts et Chaussées (France) with a PhD in Geotechnical Engineering. He worked at Eau de Paris (the Paris water public operator) in the engineering department as a scientific expert. He has over 30 years of experience in the diagnosis of underground pipes and the design of structural rehabilitations. He has published numerous papers on liner design. He has been actively involved in elaborating on the French design method for rehabilitating gravity pipes – the ASTEE 3R2014 Recommendations. He was also a member of the Blue Ribbon panel reviewers of the New ASCE Manual of Practice N°145 for the design of Close-fit Liners for Gravity pipes. He is a member of the French Scientific and Technical Association for Water and Environment (ASTEE), where he co-leads the working group on the rehabilitation of sanitation networks.
Thomas LE FLOCH is a French chemical engineer who specializes in the field of water and sanitation management.
Olivier
He worked for 14 years at the Scientific and Technical Building Center (CSTB), a French public company for which he carries out expert missions in the field of public networks and wastewater processes. He is specifically in charge of the public network’s rehabilitation services and support at CSTB, including the NF390 certification, a French certification, which manages
companies working in the field of rehabilitation.
He co-leads the ASTEE working group in rehabilitation techniques with Olivier. He was previously in charge of the laboratory that specialised in this field.
Register Now!
International Society for Trenchless Technology (ISTT) launches enhanced website, unveiling exclusive member benefits
The International Society for Trenchless Technology (ISTT), the leading global organisation committed to advancing trenchless technology, is pleased to announce the launch of its newly redesigned website. This improved platform offers exclusive benefits for members, reinforcing ISTT’s dedication to education, information sharing, and industry collaboration.
Create your paper library
The new website serves as a central hub for professionals looking to stay at the forefront of trenchless technology. Members can now create their own library by selecting technical papers from the ISTT database, which contains over 2,000 papers.
Free access to webinar videos
ISTT continues to provide essential educational content through its popular webinar series. While live webinars are accessible to the public, recordings and presentation files are exclusively available to members, giving them ondemand access to the latest information in trenchless technology.
Dedicated pages for corporate members
For corporate members, the website introduces a dedicated member page (or booth), which offers a valuable platform to showcase services and products. The basic plan, available free to all corporate
members, includes the ability to upload three brochures, one presentation, and one video. Companies can enhance their visibility by upgrading to Gold or Silver tiers, which unlock additional upload capabilities. More information on corporate member benefits can be found on this page.
“Our new website represents a significant advancement in our mission to provide unparalleled resources and support to the trenchless technology community,” said Trevor Gosatti, Executive Director of ISTT. “By offering exclusive member benefits, we empower professionals to stay informed, connected, and competitive in this rapidly evolving industry.” ISTT remains dedicated to disseminating vital information through its established channels, including the new website, the monthly magazine Trenchless Works, the weekly newsletter Global Trenchless, and its active LinkedIn presence.
Visit the new ISTT website at https://istt.com to explore the enhanced features and discover the exclusive benefits of membership.
About ISTT
The International Society for Trenchless Technology (ISTT) is a non-profit organization focused on promoting and advancing trenchless technology on a global scale. ISTT offers education, resources, and networking opportunities for professionals in the trenchless technology industry.
Contact: Trevor Gosatti Executive Director, International Society for Trenchless Technology (ISTT) info@istt.com
“
Our new website represents a significant advancement in our mission to provide unparalleled resources and support to the trenchless technology community
Call for sponsors: International No-Dig 2025 Vancouver sponsorship opportunities
ISTT is pleased to inform you that the Call for Sponsors for the International No-Dig and No-Dig North is now open.
This sponsorship opportunity includes the ISTT Chair’s Dinner as well as the Gala Dinner, which will be held in conjunction with NASTT’s Gala Dinner.
For more details on the available sponsorship opportunities, please refer to this link: https://nastt.org/ no-dig- north/sponsorshipopportunities-north/.
To apply for this opportunity, please contact Jessie directly.
NASTT Conference & Sales Director Jessie Clevenger T: +1 888-388-2554 E: jclevenger@nastt.org
We look forward to receiving sponsorship from your members!
AFFILIATED SOCIETIES
ISTT
Affiliated Societies around the world
Austrian Association for Trenchless Technology (AATT)
c/o TU Wien Resselgasse 5, 1040 Wien, Austria
Phone: +43 664 5184084
Email: office@grabenlos.at Web: www.grabenlos.at
Brazilian Association for Trenchless Technology (ABRATT)
Alameda Santos, 1773 – Jardim Paulista Sao Paulo 01419-002 Brazil
Phone: +55 11 983893450
Email: hrosas@abratt.org.br Web: www.abratt.org.br
Australasian Society for Trenchless Technology (ASTT)
PO Box 2242, MALAGA LPO, WA, 6944
Phone: +61 419 918 449
Email: secretary@astt.com.au Web: www.astt.com.au
Bulgarian Association for Trenchless Technology (BATT)
China Hong Kong Society for Trenchless Technology (CHKSTT)
Tsimshatsui Post Office 91499 Kowloon
Hong Kong
Phone: +852 9201 1952
Email: chkstt@gmail.com Web: www.chkstt.org
China Society of Geology – Trenchless Technology Committee (CSTT)
Xicheng District Room 151, 26 Baiwanzhuang Street, Xicheng District, Beijing 100037 China (PR)
Phone: +86 10 6899 2605
Email: yan64843889@126.com Web: www.cstt.org
Finnish Society for Trenchless Technology (FISTT)
Kaprinka Lake Village Kazanlak 6100, Bulgaria
Phone: +359 2 4901381
Email: info@batt-bg.org Web: www.batt-bg.org
Chinese Taipei Society for Trenchless Technology (CTSTT)
3F, No 92, Roosevelt Rd., Sec. 4, Zhongzheng Dist, Taipei City, 100
Taiwan
Phone: +886 2 2362 0939
Email: zoradcrc@gmail.com Web: www.ctstt.org.tw/en_index.asp
Czech Society for Trenchless Technology (CzSTT)
Bezova 1658/1 ,147 14 Praha 4 Czech Republic
Phone: +420 244 062 722
Email: office@czstt.cz Web: www.czstt.cz
Danish Society for Trenchless Technology – NoDig Infra (DKSTT)
Odinsvej 29 Silkeborg Denmark
Phone: +45 50894489
Email: tina@juul-consult.dk Web: www.nodiginfra.dk/nodig-infra/ startside
c/o Sari Pietilä, Haapasuonkankaantie 10 90830 Haukipudas, Finland
Phone: +358 504132484
Email: info@fistt.net Web: www.fistt.net
French Society for Trenchless Technology (FSTT)
4 rue des Beaumonts, F-94120
Fontenay Sous Bo, France Phone: +33 1 53 99 90 20
Email: contact@fstt.org Web: www.fstt.org
German Society for Trenchless Technology (GSTT) Kurfürstenstr. 129 (Building: German construction association) Berlin, Germany Phone: +49 30 81 45 59 84
Email: beyer@gstt.de Web: www.gstt.de
Italian Association of Trenchless Technology (IATT)
Via Ruggero Fiore, 41 Rome Italy Phone: +39 06 39721997
Email: iatt@iatt.info Web: www.iatt.it
Iberian Society for Trenchless Technology (IBSTT)
C/ Josefa Valcarcel, 8 – 3a PTLA 28027, Madrid, Spain Phone: +34 913 202 884
Email: ibstt@ibstt.org Web: www.ibstt.org
Japan Society for Trenchless Technology (JSTT)
3rd Floor, Reed-C Bldg., 2-11-18, Tomioka, Koto-ku, Tokyo 135-0047 Japan
Phone: +81 3 5639 9970
Email: office@jstt.jp Web: www.jstt.jp
Latin American Society for Trenchless Technology (LAMSTT) Medellín Highway (Calle 80) KM3.5 via Bogotá-Siberia south side, Bogotá Terrestrial Cargo Terminal, Office C-12, Cota – Cundinamarca, Colombia
Phone: +57 1 8764675
Email: cistt.arlex.toro@lamstt.org Web: www.lamstt.org
Malaysia Association for Trenchless Technologies (MATT)
No 44, Jalan Dungun, Damansara Heights, Kuala Lumpur 50490 Malaysia
Email: trenchless@matt.org.my Web: www.matt.org.my
Polish Foundation for Trenchless Technology (PFTT)
Ul. Warkocz 14, 25 - 253 Kielce, Poland
Phone: +48 41 34 24 450
Email: parkaa@tu.kielce.pl Web: www.pftt.pl
Trenchless Romania Club
Roma Street, No. 16, Ap.2, District 1 Bucharest Romania
Phone: + 40724 550 830
Email: maria.nae@trenchlessromania.ro Web: www.trenchlessromaniaclub.ro
North American Society for Trenchless Technology (NASTT) 22722 29th Drive SE, STE 100, Bothell, WA 98021
Phone: +1 888 993 9935
Email: info@nastt.org Web: www.nastt.org
The Russian Society Trenchless Technology Association (RSTT) Severny proezd 12, Balashikha Moscow region, Russian Federation Phone: +7 (495) 521 78 82
Email: gnb.06@mail.ru Web: www.s-gnb.ru
Southern African Society for Trenchless Technology (SASTT) 1053 Hyde Avenue, Eldoraigne ext 1, Centurion Gauteng, South Africa Phone: +27 (0) 82 551 7458
Email: director@sastt.org.za Web: www.sastt.org.za
Singapore Society for Trenchless Technology (SgSTT)
84 Toh Guan Road East, Singapore Water Exchange , +(65) 97124054, Singapore Phone: +(65) 97124054 Email: admin@sgstt.org Web: www.sgstt.org/
Turkish Society for Infrastructure and Trenchless Technology (TSITT) Gayrettepe Mah. Huzur Sok. No:1A Besiktas 34349 Istanbul, Turkey
Phone: +90 212 603 11 01
Email: info@akated.com Web: www.akated.com
Ukraine Association for Modern Trenchless Technology (UAMTT) 83A Srednyaya Str., Odessa 65005 Ukraine
Phone: +380 50 3953280
Email: trenchless.as@novatec.ua Web: www.no-dig.odessa.ua
Netherlands Society for Trenchless Technology (NSTT)
Postbus 79, 3769 ZH Soesterberg, Netherlands
Phone: +31 346 723450
Email: info@nstt.nl Web: www.nstt.nl
Scandinavian Society for Trenchless Technology (SSTT)
Gezelius väg 12, 134 31 Gustavsberg Sweden Phone: +46(0) 70 438 01 54 Email: Kontakt@sstt.se Web: www.sstt.se
United Kingdom Society for Trenchless Technology (UKSTT) Camden House, Warwick Road, Kenilworth, Warwickshire, CV8 1TH, UK
Phone: +44 (0)192 651 3773
Email: admin@ukstt.org.uk Web: www.ukstt.org.uk
Building the Future of Trenchless Technology: The Role of NASTT’s Regional Chapters
The North American Society for Trenchless Technology (NASTT)’s mission is to spread the good news of trenchless technology - innovative construction techniques that minimize surface disruption when installing or rehabilitating underground infrastructure. While the national organization sets the tone for industry standards, research, and largescale events, it’s the Regional Chapters that breathe life into the mission at a local level.
Grassroots
Engagement and Local Leadership
NASTT’s Regional Chapters serve as the grassroots arms of the organization, bringing the trenchless message directly into communities across North America. These chapters are organized geographically, with 12 regions: British Columbia, Great Lakes/St. Lawrence/Atlantic, Mexico, Mid Atlantic, Midwest, Northeast, Northwest, Pacific Northwest, Rocky Mountain,
South Central, Southeast and West. Each chapter is composed of professionals from a diverse mix of sectors, including municipalities and other government agencies, engineering firms, utility companies, academia, and contractors.
These local hubs foster leadership development and grassroots participation. By engaging with a Regional Chapter, members not only contribute to the growth of trenchless technology in their area but also help shape how the industry evolves on a broader scale. Local involvement offers members the chance to get involved with municipal infrastructure improvements, identify regional priorities, and support environmentally responsible solutions.
Regional
Events: Where Innovation Meets Practice
One of the most impactful functions of NASTT’s Regional
Chapters is hosting local and regional events. These events range from networking mixers and technical luncheons to larger-scale conferences and trade shows. A few notable examples include the Western Regional No-Dig Conference and the Rocky Mountain Trenchless Elevated Conference. These gatherings provide attendees with the opportunity to see the latest technology in action, hear from top-tier experts, and connect directly with peers facing similar challenges.
What makes these regional events particularly valuable is their focus on practical, area-specific issues. Whether addressing soil conditions in the Midwest or urban congestion in the Northeast, the events ensure that trenchless solutions are tailored to the needs of the local infrastructure.
Networking and Community Building
At its core, the strength of NASTT’s Regional Chapters
lies in the connections they foster. Local events and chapter meetings provide a less formal, more accessible venue for relationship building. Whether you’re a seasoned contractor, a municipal project manager, or a new engineering graduate, chapter events offer meaningful opportunities to connect, share experiences, and form long-lasting professional relationships.
Chapters often host networking socials, site visits, and “lunch and learn” sessions that encourage open dialogue. These informal interactions frequently lead to business opportunities, collaborations, and mentorships—essential ingredients for career development in a specialized industry like trenchless technology.
Sharing Ideas, Solving Problems
In addition to networking, Regional Chapters provide an ideal platform for members to share ideas, successes, and lessons learned. Presenting case studies and real-world project experiences at chapter events helps promote best practices and encourages innovation. These knowledge exchanges are vital for the evolution of trenchless techniques and for ensuring project success across different environments.
NASTT’s Regional Chapters are more than just administrative divisions—they’re dynamic communities that connect professionals, empower innovation, and drive the trenchless industry forward. By providing localized education, training, and networking,
these Chapters ensure that the benefits of trenchless technology reach every corner of North America. For anyone involved in underground infrastructure, joining a Regional Chapter is an invaluable step toward making meaningful, lasting contributions to the industry.
To learn more about your Regional Chapter or to get involved with NASTT at the Regional Level, reach out at info@nastt.org or visit https:// nastt.org/about/regionalchapters/.
EVENTS AND MEETINGS 2025
May 7-8 Trenchless Asia 2025
Kuala Lumpur Convention Centre, Malaysia www.trenchlessasia.com
June 25 Sheffield No-Dig Roadshow
DoubleTree Hilton, Sheffield Park, Sheffield www.nodigroadshows.co.uk
July 9-10 Trenchless India 2025 Chennai, India
October 2 No-Dig Roadshow and UKSTT Awards: Bristol, Tortworth Court www.nodigroadshows.co.uk
October 27-29 International No-Dig 2025
Vancouver Convention Center Email: info@istt.com
October 27-29 NASTT 2025 No-Dig North & ISTT
International No-Dig – Vancouver, BC Vancouver Convention Centre nastt.org/no-dig-north
November 5- 6 No-Dig Turkey 2025 Conference and Exhibition: WOW Convention Center
Email: ytorun@akated.com www.nodigturkey.com
Trenchless Middle East 2025 Kingdom of Saudi Arabia
2026
February 11-12 Trenchless Morocco 2026
Marriott Hotel, Rabat
Trenchless Middle East 2026
Dubai 2026
June 10-11 Trenchless Asia 2026
Queen Sirikit National Convention Centre Bangkok, Thailand
September 29 - October 1 No-Dig Live 2026
NAEC Stoneleigh Park, Warwickshire
No-Dig Roadshow Series 2026
If you have an event, course or meeting scheduled and would like to add it to this listing please forward details to: editorial@trenchless-works.com
