Auckland city skyline

Watercare outlines NZ$18.5b plan

Earlier this month, the company released its Asset Management Plan (2021-2041) which outlines how Watercare will deliver new water sources and infrastructure, as well as renew and expand its wastewater network, to cater for Auckland’s expanding population.

The city is anticipated to have approximately 476,000 more residents over the coming 20 years and Watercare Chief Executive Jon Lamonte said it was important to continue to support the changes in a climate-resilient way.

“We have a colossal job to do to ensure we can continue to provide top quality drinking water to all of our customers and safely treat our region’s wastewater while adapting to the changing climate.
 
“While our population grows, industry does too,” he said.

“Auckland is already home to two-thirds of the country’s food and beverage manufacturers – two sectors for which water is vital – so ensuring we can support growth in these industries with a secure water supply is important for the wider economy.”

Mr Lamonte said the total investment averaged out to NZ$2.5 million ($2.37 million) per day, and there was no shortage of work to undertake.

“If consent is granted, we plan to progressively expand our new treatment plant near Tuakau until it can treat up to 150 million L a day.

“To put that volume in perspective, that’s more than what we can get from all five of our Waitākere dams,” he said.

“We’ll also need a new pipeline to carry this water to the city and increase our system’s resilience.”

Click here to read a copy of the plan.

For more information visit the Watercare website.

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Sewer Main Renewals Program 2021/22
Issued by: Grampians Wimmera Mallee Water Corporation
Closing Date: 27 July 2021
Location: Victoria
Description: Tenders are invited for the Sewer Main Renewals Program 2021/22. This Contract includes sewer main relining works located across GWMWater’s operational region, with the scope of works as follows: Relining of approximately 9,564 m of mains, ranging in size from 100 mm to 375 mm diameter. 

Sydney Gateway, Stages 1 & 3 – underbore and HDD
Issued by: John Holland Pty Ltd & Seymour Whyte Construction Pty Ltd
Closing Date: 01 September 2021
Location: New South Wales
Description: Perform underbore and horizontal directional drilling (HDD) works including supply of conduits/sleeves.

PSA supply and delivery of under road boring services
Issued by: Livingstone Shire Council
Closing Date: 04 August 2021
Location: Queensland
Description: Livingstone Shire Council is seeking to source suitably qualified contractors to perform horizontal directional drilling services in urban and residential areas at various council sites throughout the Livingstone Shire who are qualified and capable of services as detailed in the specification for its Provide Preferred Supplier Arrangement (PSA) Supply and Delivery of Under Road Boring Services requirements.

San Remo Basin to Cowes 648 Pipeline Valve Renewal Project
Issued by: Westernport Water
Closing Date: 04 August 2021
Location: New South Wales
Description: Westernport Water is seeking tenders from suitably qualified and experienced contractors for the provision of replacing multiple valves and pipe segments along the 648 pipeline between San Remo Basin and Cowes according to the drawings. 

Large diameter pipe structural sewer lining
Issued by: Hunter Water Corporation
Closing Date: 29 July 2021
Location: New South Wales
Description The work under this contract includes but is not limited to design, supply, installation, construction, and testing of structural lining systems for the full length between maintenance holes unless noted otherwise. All work is to be undertaken with as little disruption as possible to the operation of the principals sewer system and to its customers.

Drainage renewal and floodway construction works
Issued by: Isaac Regional Council
Closing Date: 23 July 2021
Location: Queensland
Description: Isaac Regional Council invites tenders for Drainage Renewal and Floodway Construction Works. The individual sites which are to be tendered:

  1. Dysart_Clermont_Road
  2. May_Downs_Carfax_Road
  3. Barmount_Road
  4. Wiatara_Road
  5. Palmerston Road

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

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

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

Email support@australiantenders.com.au for more information.  

For more tender information visit the Australian Tenders website

WATCH: New Melbourne sewer pipeline on track

The Yarra Valley Water (YVW) project involves the construction of a 9 km sewer pipeline between Donnybrook and Beveridge in Melbourne’s north.

On completion, the pipeline will incorporate up to 14 branch sewer connection points to service future developments and collect and transfer wastewater from the existing Wallan Sewage Treatment Plant.

 

JAYDO reported this week that the microtunnel boring machine has just completed the fifth of six drives, marking another significant milestone for the project.

The pipeline is being constructed along the western side of the Melbourne-Sydney railway line north of Minton Street, then crossing the railway line and hugging the eastern side of the rail line to its southern end in Donnybrook.

Construction is on track for completion later this year with the new sewer pipeline to be in operation shortly after.

For more information visit the Bothar website.

GWW announces board

GWW will integarate Victorian utilities City West Water (CWW) and Western Water (WW) in a move the state government said will help handle the demands of population growth and new infrastructure in Melbourne’s west.  

Mr Middleton has been Chair of CWW for the past six years and will be supported by WW Directors Llewellyn Prain, Claire Filson and Liza McDonald, while CWW Directors Bruce Cohen and Tania Fryer will also join the inaugural GWW board.  

New members to the board include Taungurung Land & Waters Council CEO Matthew Burns, experienced executive Efim Tkatchew and lawyer Linda White. 

Inaugural GWW Managing Director Maree Lang thanked the outgoing directors of both WW and CWW for their services to the sector.  

“In particular, I thank Andrew Cairns for his significant contribution as the Western Water chair,” she said. 

“I look forward to working with the new GWW board.  

“This team of highly qualified, dedicated directors will guide GWW through its early phases from 1 July 2021 and represent the diverse community of which they are a part.”

All existing staff from both organisations will be transferred to the new company by the start date, and $500,000 has been invested in planning upgrades to convert WW’s Sunbury office into a GWW hub. 

For more information visit the City West Water website.   

ISTT to hold lateral sewer repair webinar

Entitled Repair of lateral sewers and lateral connections – comparison of techniques and quality assurance and presented by Dr Iain Naismith and Serdar Ulutaş, the webinar will highlight the lessons learned from 1:1 scale evaluation of the performance of technologies available for the repair of lateral sewers, particularly the use of patch repairs, and repair of lateral connections. 

Read more

South East Water celebrates reconciliation after completion of major sewer project

The utility gathered at Ranelagh Beach in Mount Eliza with the Bunurong Land Council Aboriginal Corporation (BLCAC) and Mount Eliza Association for Environmental Care (MEAFC) to heal Country last month.

South East Water worked closely with BLCAC from the beginning of the renewal project, understanding the high cultural sensitivity of the site for the Traditional Bunurong Owners.

A smoking ceremony and planting activity signalled the completion of a major sewer pipe renewal project at the site.

The three organisations came together to plant more than 1,500 native plants sourced from the Willum Warrain Aboriginal Gathering Place, Seawinds Volunteer Nursery and Advance Nursery.

South East Water Managing Director Lara Olsen said the event was a great way to complete the sewer renewal project, and to celebrate the opportunity with Traditional Owners to work together on projects like this.

“We do our best to reduce our impact on the environment wherever we can, but where our works do have an impact, it’s really important that we heal Country by revegetating parts of this coastal environment,” she said.

“While we regularly engage Traditional Owner groups whenever our works may impact a culturally sensitive site, this project is a great example of how we can do more than just engage or consult our Traditional Owners.

“We can co-create projects together that recognise and celebrate the history of the land in which we operate.”

To acknowledge the cultural significance of the site, South East Water also engaged BLCAC CEO Dan Turnbull to engrave Aboriginal designs onto eight marker posts to tell the story of the area.

The artwork on each post took between 14 and 25 hours to complete.

South East Water sought approval from a Cultural Heritage Management Plan (CHMP) from BLCAC to undertake the work.

South East Water also worked with an archaeologist and BLCAC representatives to salvage shell midden material and artefacts at the site that were uncovered during the works.

Mr Turnbull shared the stories of the marker posts with those present on the day, which represent Bunurong tradition and culture. 

“It was great working with South East Water. This project is a really special one because this place is of great significance to us and the relationship with South East water is a strong one, and it’s an important one for us,” he said.

Reconciliation Australia endorsed South East Water’s first Reconciliation Action Plan (RAP) in October 2020.

The organisation’s RAP seeks to provide opportunities to create connections and build trust, respect, and understanding of First Nations history, and create employment and procurement opportunities for First Nations people.

For more information, visit the South East Water website.

Sydney Water project wins global award

The project included laying 4.2 km of wastewater pipes and 650 m of stormwater pipes in dense urban areas, connecting more than 200 properties, and the construction of 140 maintenance manholes, as well as repair to vent shafts.

Full completion of this project was achieved in March 2020.

The project was extremely high-impact as a result of the densely populated location, as it affected more than 30,000 customers in Woolloomooloo, Potts Point, and Darlinghurst areas.

The location challenges led the team to adopt advanced technology, such as prefabricated manholes, reducing installation times from 21 days to 3-5 days.

State of the art trenchless construction techniques such as bed bored, stitch boring, and microtunnelling were deployed, reducing noise impacts and minimising the impact on the environment.

The now-improved system can capture and transfer wet weather wastewater overflow in the Woolloomooloo catchment into the Bondi treatment plant.

It has also eliminated wafted odours during the dry weather, which were a main cause of complaint in the community.

The new separated system improves the liveability of the area, minimises the contamination of the Sydney Harbour and Bay, enhances its water quality, and improves marine life.

Sydney Water took an integrated team approach, taking on GHD to lead planning and design, and Diona Civil Engineering for the construction stages.

Pezzimenti and UEA Australia were responsible for the trenchless pipe installation and technology, and Rocla supplied the prefabricated manholes.

For more information visit the Sydney Water website.

Watercare Central Interceptor TBM

WATCH: Inside the Central Interceptor launch shaft

The project is being delivered by the Ghella Abergeldie Joint Venture (GAJV) and will comprise nearly 20 km of tunnels, more than 17 shafts, a major pump station and significant wastewater management and network infrastructure works.

In July, the project’s 190 m long tunnel boring machine (TBM), named ‘Hiwa-i-te-Rangi’, will begin tunnelling the NZ$1.2 billion ($1.12 billion) project from the shaft which extends 40 m below the surface.

Watercare CEO Jon Lamonte was the first official visitor to the site, and said the first thing that struck him was the scale of the project. 

“The amount of engineering challenges – someone was saying a second ago that we’re actually under the sea here, and you realise just how much of an engineering task that is let alone anything else. 

“This is something we’re building for Auckland’s growth,” he said. 

The Central Interceptor will run underground from Western Springs, near the Auckland Zoo, to the Māngere Wastewater Treatment Plant.   

The project will result in cleaner waterways for central Auckland and is scheduled for completion in 2025.   

For more information visit the Watercare website. 

 

The way to go in WA

With a primary objective of protecting the new water main during operations, a lower profile kwik-ZIP spacer model was used – demonstrating the manufacturer’s versatility.  

kwik-ZIP® General Manager Paul Jeffreys said the project involved abandoned gas mains with numerous internal protrusions, such as joints and welds.  

Because of this, there was significant concern that the PE carrier pipes for the new water main could be scratched and damaged during the slip lining operations.  

However, thanks to kwik-ZIP’s wide range of spacer models, the lower profile HD-30 spacer was used on the project to help ensure the water main was protected.  

Mr Jeffreys said the curved bow spring design ensures PE carrier pipes can easily ride over any protrusions and therefore be protected from damage.  

“HD spacers are also fitted with grip pads to prevent spacers slipping on the carrier pipe during installation,” he said.  

While HDPE pipe manufacturers generally advise that HDPE pipe needs to be de-rated in regard to its pressure if scratches exceed 10 per cent of the wall thickness of the pipe, kwik-ZIP’s spacers negate such need thanks to the inbuilt flexibility.  

“This highlights the benefit of using kwik-ZIP spacers for slip lining applications both inside an enveloper, and in open boreholes,” said Mr Jeffreys. 

“The runners ensure that the pipe can’t make contact with the enveloper during and after installation.”  

Wide range of products and capabilities kwik-ZIP’s large array of spacers caters for a wide range of inner diameter and outer diameter combinations as well as providing flexibility to deal with various project requirements and alterations.  

Site Engineer Jo McAnulty for the WA water main project said the kwik-ZIP spacers were a great solution for slip lining, alleviating the risk of potential damage to the PE pipe during the process.  

“Thanks to PJ and the kwik-ZIP team for their excellent customer service, they were fantastic to deal with from start to finish and we’ll certainly keep them in mind for future projects.”  

In addition to their proven success on this project, kwik-ZIP’s spacers are also often used on metro tunnel works, rail crossings and pipeline duplication projects thanks to the simple and efficient installation process that does not require any tools.  

kwik-ZIP spacers have no metal parts and are made from the company’s engineered thermoplastic blend that is flexible, extremely tough and has a low co-efficient of friction. 

For further information on kwik-ZIP® products and to discuss specific project requirements please contact the team at sales@kwikzip.com 

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

Works underway on Mairangi Bay pump station

The new pump station will be located in Sidmouth Street, Mairangi Bay in Auckland on New Zealand’s North Island and will contain larger pumps and greater underground storage in order to double capacity. 

Pipeline and Civil has been contracted for the project which is expected to take up to two years to complete. 

The development is part of a wider initiative to upgrade the East Coast Bays wastewater network, which will include a new transmission line and a new link sewer.  

Project Manager Casper Kruger said the pump station will help protect local waterways, including Mairangi Bay Beach. 

“We received resource consent for the new pump station back in 2015 and it’s undergone considerable design refinement, so it’s great to see it underway,” he said. 
  
“We’re aware how much locals love their beach, and this project will virtually eliminate overflows, so there’ll be real improvements in water quality.” 

The design of the pump station will ensure it integrates with the reserve in the area, while the pumps have been designed to lie horizontally, instead of vertically, to reduce the overall height and impact of the building. 

Pipeline and Civil General Manager Hugh Goddard said the company was excited to be a part of such a critical project.  

“We are looking forward to using our experience from over 25 years of constructing high quality water infrastructure to deliver a successful project,” he said. 

For more information visit the Watercare website. 

generic water pipe image

YVW constructing new sewer system

The new piped sewerage system will benefit approximately 300 properties and is being constructed from west to east. 

After initial design identified the potential loss of up to 200 trees, the engineering team decided to use trenchless drilling methods to bore beneath ground level which, together with smart pressure sewer technologies, will minimise disruption to the surrounding environment and community.  

The project will now result in the loss of no trees, while customers will be able to connect progressively to the new system over the next 1-2 years. 

The smart pressure sewer system includes remote monitoring of every household’s pressure pump, allowing maintenance issues to be addressed without customers needing to notify YVW. 

YVW General Manager of Growth Futures Chris Brace said the system will benefit locals and the environment.  

“Connecting to the new sewerage system will boost convenience for customers and benefit the environment,” he said. 

“Odours and pollution in waterways from septic tanks that aren’t working properly will be a thing of the past once customers transfer to the new system.” 

For more information visit the YVW network. 

MTBM extracted in NZ

Known as ‘Piper’, the MTBM was extracted from 3 m under the seabed using specialist mass flow excavation equipment during a rare weather window in Hokitika, on the west coast of New Zealand’s South Island. 

Piper was then slung under a custom-made pontoon and towed 18 nautical miles (33 km) back to Greymouth.  

McConnell Dowell said the pontoon was designed by the company’s in-house temporary works team and fabricated by its mechanical team. 

The pontoon was also used by McConnell Dowell on the recent Snells Algies Outfall and Army Bay Ocean Outfall projects 

The Westland project involved the construction of 800 m of new trenchless pipeline using the Direct Pipe® system, with the pipeline part of the overall scheme to re-direct waste flows from discharging into the Hokitika River and into a more acceptable location. 

For more information visit the McConnell Dowell website.  

WATCH: Water main cleaned before connection

Adept Civil said cleaning the mains using the pigs, or “swabs”, was just the first stage of a three-step process prior to connection.  

 

Adept Civil’s crews have been working on the diversion of a large South East Water distribution main that services a large area of customers in Clyde, Victoria. 

These works are part of the Monash Freeway Upgrade on behalf of CPB Contractors.  

For more information visit the Adept Civil website.  

WATCH: MTBM gets ready for launch

The project is being delivered by the Ghella Abergeldie Joint Venture (GAJV) and will comprise nearly 20 km of tunnels, more than 17 shafts, a major pump station and significant wastewater management and network infrastructure works.  

MTBM Domenica will be launched at May Road in Mt Roskill and dig two link sewers that will connect to the main wastewater tunnel totalling 4.2 km. 

The machine has a length of 12 m and a diameter of 2.5-2.8 m. 

  

The Central Interceptor will run underground from Western Springs, near the Auckland Zoo, to the Māngere Wastewater Treatment Plant.  

The project will result in cleaner waterways for central Auckland and is scheduled for completion in 2025.  

For more information visit the Watercare website.  

WSAA gives kwik-ZIP tick of approval

The spacers are used to maintain the position of a carrier pipe in a water or sewer main within an encasing pipe for pipe-in-pipe applications like sliplining and cased crossings.  

The system can be used for medium to heavy weight pipe materials including steel, ductile iron, GRP, FRP, concrete, PVC and PE and is suitable for both pressure and non-pressure pipelines in grouted and un-grouted installations. 

The HDX casing spacers use a segmented design that allows the system to be used on a range of carrier pipes from 100 to 1,668 mm OD.  

The components of the spacer are manufactured from injection moulded inert engineering thermoplastics that incorporate low friction high abrasion resistant wear pads, attached to load sharing runners. 

The WSAA provides member organisation and the general urban water industry with best practice codes and standards to help promote the use of fit-for-purpose productions and solutions.  

The WSAA appraisal processes require products to be re-certified every five years. 

For more information visit the kwik-ZIP website.  

 

funding for water business cases

Melbourne Water targets century-old sewer

The Hawthorn Main Sewer transfers sewage from the city’s east to the Western Treatment Plant in Werribee and has been in service for more than a century.  

Now reaching the end of its service life, the brick sewer will be replaced with two glass reinforced plastic pipes, with the project team to construct a shaft on each side of the Yarra and tunnel underneath the river.  

Stage one of the upgrade was the now-completed relining of a 1.7 km stretch from Power Street in Hawthorn to Burnley Street in Richmond.  

Melbourne Water General Manager of Program Delivery Eamonn Kelly said it was crucial the asset continued to function properly.  

“It will provide the community with a world class, secure and reliable sewerage service for the next 100 years,” he said. 

“The Hawthorn Main Sewer has always been an integral part of Melbourne’s critical infrastructure and to this day is one of the principal sewers in Melbourne Water’s 400 km network.” 

The project is targeted for completion in early 2023.  

For more information visit the Melbourne Water website.  

Old drains, new solutions

New Plumbing Solutions (NPS) is a provider of plumbing maintenance and civil works for water and sewerage assets.  

Committed to investigating and investing in new, innovative technologies to solve old problems, NPS turned to Smart Lock Group for a solution when an asset was excessively impaired.  

Simple method, complex problem  

NPS Delivery Manager Damian Bradley said its client had a severely damaged drain next to a café in parkland gardens with significant trees and hard landscaping surrounding it, resulting in any rain event compromising the café and leaving the community unable to use the gardens.  

Upon NPS’ inspection, while large sections of the drains were in good condition, there were a number of damaged sections identified which were causing the flooding.  

To avoid the costly and disruptive “dig-and-repair” method of corrective works, NPS was able to propose a blended relining and Smart Lock solution.”  

Smart Lock is a simple method of repair, where drains undergo CCTV inspections to pinpoint the most damage impacted sections of a drain and pipe.  

The ‘no-dig’ patching solution allows for drains that are cracked, or those that allow root infiltration, to be repaired in a trenchless, non-disruptive manner.  

“The simple installation and efficient cure time of using Smart Lock means the job can be completed with minimum disruption,” said Mr Bradley.  

Project-specific solutions Smart Lock understands that one size does not fit all, which is why its team endeavour to always find a practical and suitable solution for varying project needs.  

“For NPS’ drain repair, our solution recommended for more than 20 Smart Locks to be installed and one section of pipe to be relined,” said Mr Bradley.  

“Given the issues were rectified only where there was specific damage, the solution provided a cost-effective outcome, and the trenchless technology solution utilised ensured there was no business interruption.”  

Mr Bradley said there are many measurable benefits of using Smart Lock systems compared to traditional repair methods, including that it is 35 per cent cheaper, it allows for 100 per cent of business continuity during works and the time onsite is reduced by 40 per cent.  

For more information visit the Smart Lock website. 

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

View the latest trenchless technology tenders

View the latest trenchless technology tenders

Pipe rehabilitation at 25 Green Square Close, Fortitude Valley
Issued by: Brisbane City Council
Closing Date: 05 May 2021
Location: Queensland
Description: Council is seeking quotations for stormwater pipe relining at 25 Green Square Close, Fortitude Valley

Sewer main replacement in Young – A Line
Issued by: Hilltops Shire Council
Closing Date: 13 May 2021
Location: New South Wales
Description: Hilltops Council is seeking tenders from suitability qualified and experienced parties to undertake all works required to upgrade the A Line Sewer Main in Young. This includes, but is not limited to, the design, supply, installation, and construction. All works are to be undertaken in accordance with the specification and contract requirements.

Sewer rising main replacement for Pumping Stations G8 and G9
Issued by: Central Coast Council
Closing Date: 04 May 2021
Location:  New South Wales
Description: Project: SPS G8 currently pumps via a DN300 AC rising main to the DN300 GT1 variable grade sewer (VGS), ultimately discharging into the Wyoming Major (WYMJ) catchment. SPS G9 also pumps into the G8 rising main. To accommodate increased flows from the G8 pump station resulting from development in the catchment, Council plans to replace the existing DN300 VGS with a rising main along a new alignment, using the existing rail crossing and discharging in to the gravity system to WYMJ.

W0947 Romsey High Level Tank
Issued by: Western Water
Closing Date: 05 May 2021
Location: Victoria
Description: Western Water is intending to release a request for tender for the replacement of Romsey High Level Tank located in Romsey, Victoria. The Romsey High Level Tank is supplying potable water to the high-pressure zone in Romsey.  The project scope includes mechanical, civil, structural and electrical works, including:

  • Detailed design and Construction of a new 400 kL potable water tank, comprised of two compartments for redundancy
  • DN150 PVC inlet main to tank, approximately 1.0 km, installed along the existing water main
  • DN225 PVC outlet main from tank, approximately 0.5 km and tie-in into existing water main
  • DN150 (provisional scope) outlet water main, approximately 1.3 km, from the potable water borehole at the tank site running in parallel to the water mains.
  • Automated chlorination system, including pump skid, chemical storage tank and associated civil, mechanical and electrical works 
  • Access road improvements, passing bay and concrete hardstand for chemical supply
  • Horizontal directional drilling under Ochiltrees Road and connection to the existing rising main at the southern side of the road.
  • Electrical works, including new el. cabinet and wiring 
  • Civil and mechanical works, tank pipework, access and instrumentation
  • Ancillary works necessary to complete and operate the Works.
  • Testing, commissioning and process-proving of the new infrastructure
  • Decommissioning, demolition and removal of all redundant infrastructure (old tank, pipework, electrical and instrumentation)
  • Full project documentation and safety-in-design review 

San Remo Basin Renewal Project design and construct
Issued by: Westernport Water
Closing Date: 07 May 2021
Location: Victoria
Description: Westernport Region Water Corporation (Principal) provides water, wastewater and other service to some 20,000 properties on Phillip Island and an area of the mainland from The Gurdies through to Archies Creek.

Barina Park Detention Basin remediation works
Issued by: Wollongong City Council
Closing Date: 04 May 2021
Location: New South Wales
Description: Wollongong City Council wishes to engage a contractor for the remediation of the Barina Park detention basin earth embankment and stormwater infrastructure located at Barina Avenue, Lake Heights. The contractor will be required to undertake the necessary excavation, filling and compaction works on the embankment, as well as the replacement of existing stormwater pipe infrastructure and associated modifications to existing concrete pits, pipes and risers. Turf reinforcement matting will also be required to be installed on the downstream side of the dam embankment.

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

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

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

Email support@australiantenders.com.au for more information.

For more tender information visit the Australian Tenders website.

Addtech acquires ImpulseRadar

TDG acquires Bartlett’s

Bartlett’s will reportedly still be run by company Founder Darren Bartlett and CEO Hayden Bateman who will also take stakes in TDG. 

In a post on social media, TDG said it was looking forward to joining forces with the Bartlett’s team. 

“Over the past three decades Bartlett’s Environmental has grown into one of the leading service providers across Victoria with a strong reputation for customer service, operational excellence, and innovative solutions,” said TDG. 

“Our combined experience and capabilities will provide one of the most comprehensive environmental and recycling services along the east coast of Australia, with an increased capacity to add value and further growth.” 

TDG provides sewer and stormwater solutions including drain cleaning, water blasting, CCTV and pipe rehabilitation.  

For more information visit the TDG website.  

Rob Carr completes complex installation

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

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

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

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

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

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

For more information visit the Rob Carr website. 

Enabling innovation to thrive in the water sector

A new era of ‘co-creation’ is enhancing this collaborative approach, enabling asset owners and service providers to combine their knowledge to deliver community-focused infrastructure solutions that will last for generations.

Reshaping traditional customer relationships

The notion of co-creation is facilitating a major shift in the way industries transfer knowledge and communicate.

When companies co-create, they invite third parties such as consumers, suppliers and service providers to collaborate on industry initiatives or projects.

This concept is redefining contractor relationships within the water industry, paving the way for robust and dynamic discussions that provide new insights into community wants and needs.

Early Contractor Involvement (ECI) is a prime example of co-creation in action: it facilitates collaboration between service providers, contractors and customers at the earliest stage of a project.

As a result, the service provider can harness the asset owner’s intimate knowledge of the surrounding environment, existing infrastructure and community requirements to tailor their solution and drive innovation.

Cooperative involvement is enabling water authorities, government bodies and local councils to play an active role in reshaping their communities through collaboration with their industry partners, as well as key community stakeholders.

This enables delivery partners including leading water infrastructure company Interflow, to develop ‘customer-centric’ solutions to complex water network projects.

Keeping the community front of mind

Coliban Water’s region covers 49 towns across 16,500 km² of regional Victoria, including the Bendigo district.

Since its establishment in 1992, the organisation has maintained its focus on delivering appropriate water and wastewater services to communities within the growing region.

A 900 mm sewer trunk main that traverses the Bendigo suburbs of White Hills and Epsom was recently identified and prioritised for work after it was found to be in poor condition.

The trunk main was discovered to have significant erosion and partial blockages, meaning the pipe had limited capacity for the area it serviced.

The sewer trunk main was first built in the 1960s and the section that was renewed is almost 2 km long.

It travels under parks, footpaths, roads and private backyards, and is a key piece of sewer infrastructure for that local community.

It was important to find a long-term solution for the ageing sewer trunk main, while also ensuring any impacts on the community were minimised.

Two heads are better than one

Interflow and Coliban Water worked together to establish the most effective way to renew the sewer main.

From a planning perspective, the development of a suitable flow management plan was a crucial element of the project.

Interflow staff were able to gain insight about existing infrastructure and the local landscape to help with the planning and design process.

Interflow Project Manager Fergus Meyer said the active collaboration expedited the planning and design phase to deliver the community with a winning solution.

“Coliban Water’s flow data and network analysis were crucial to successfully modelling a viable solution that prioritised community wellbeing and cost reduction,” he said.

“Studying the network infrastructure, we identified a neighbouring pipeline that presented an unanticipated yet promising bypass alternative.”

Although the neighbouring pipeline was smaller in diameter and unable to accommodate all the flow from the ageing sewer trunk main, Interflow was able to channel a carefully calculated portion of flow through it allowing the sewer trunk main to be relined whilst operating at a reduced capacity.

Co-creation: a recipe for success

This solution would not have been realised without the collaboration and knowledge sharing between Coliban Water and Interflow.

Coliban Water Infrastructure Manager Corey Bourne said the sewer main’s lifespan had been extended by 50 years and a costly full bypass had been avoided.

The sewer relining works were carried out during the day, which had meant less disruption for customers and eliminated safety risks associated with night works.

“A combination of practical experience and hydraulic modelling expertise enabled this plan to be developed.”

Before the relining of the sewer main, approximately 300 t of sludge was removed from it.

“The capacity of the sewer trunk main has been significantly improved thanks to these works, and it has also reduced the chance of a sewer spill during a heavy rainfall event,” said Mr Bourne.

Fergus Meyer said co-creation is an important role within projects such as this one. 

“Coliban Water’s willingness to be involved in the process reflects their dedication to uphold the interests of the community and achieve a long-term solution,” he said.

“As more companies realise the potential for productivity and innovation that co-creation presents, innovations within the water sector will continue to bloom.”

For more information visit the Interflow website.