AUMA Actuators Limited (AUMA UK), a world leader in electric valve actuation technology, has successfully extended its Service Level Agreement (SLA) with Anglian Water until 2028. AUMA UK and Anglian Water worked in partnership to develop and deploy a new and unique process to service, maintain and replace a range
Thames Water, the UK’s largest water and wastewater services provider, has announced the establishment of the FA2050 Technical Partner Framework to support its groundbreaking Strategic Resource Options (SRO) programme. This framework, with a contract value of £300 million and a term of up to eight years, marks a significant milestone
Barhale has secured two further contracts under Thames Water’s AMP7 Conditional Allowance Trunk Main Schemes both adjacent to major London railway terminuses. The awards bringing the total value of works Barhale has been awarded under the scheme to £24.8M. The Victoria Station Trunk Main Replacement and the Eversholt Street Mains
A project to repair and replace two sections of parallel rising mains will rehabilitate an important section of the East London sewer network and will deploy innovative offsite manufacturing to replace an existing discharge chamber. Thames Water has appointed civil engineering and infrastructure specialist Barhale to carry out the £7.8
Leading capital infrastructure and engineering services company, Avove, has been awarded a multi-million-pound design and build framework agreement with Northumbrian Water Group (NWG) as part of NWG’s Asset Management Period 8 (AMP8) £3.6 billion investment programme. The design and build framework, which commences in January 2024 for up to 12
Appointment adds to Costain’s wins in the new water regulatory cycle Costain, the infrastructure solutions company, has been appointed by Northumbrian Water (NWG) to help shape and deliver its strategic infrastructure upgrade programme. The framework will see contracts awarded with the potential value of up to £670m to Costain over
The first pipes have been laid in a new 57km water pipeline, which will support supplies to more than 200,000 people across the North East. Northumbrian Water’s Project Pipeline: County Durham and the Tees Valley is a huge £155m investment in futureproofing the resilience and quality of water supply to
Earth Change, a division of the Land & Water Group, alongside Project Seagrass and Swansea University Unveil Groundbreaking Automated Seagrass Planter, Revolutionising Large-Scale Seagrass Planting Land & Water, a leading environmental engineering company, and Project Seagrass, a renowned marine conservation organisation, are proud to announce the successful design, construction, and
Yorkshire Water has selected BarhaleEnpure Joint Venture for an £18M project to upgrade Phosphorous removal and flow monitoring at its Dewsbury Wastewater Treatment Works. On completion, the works will ensure Phosphorus concentrations in the final effluent meet water industry national environment programme (WINEP) targets for England. The installation of a UMON4
Thames Water has awarded civil engineering and infrastructure specialist Barhale a £16.8M contract to upgrade an important water trunk main running through the London Boroughs of Barnet and Enfield. The work, which forms part of Thames Water’s AMP7 Conditional Allowance Trunk Main Schemes, will protect future water supply in the
BDC 319 : Aug 2024
AUMA Actuators Limited (AUMA UK), a world leader in electric valve actuation technology, has successfully extended its Service Level Agreement (SLA) with Anglian Water until 2028. AUMA UK and Anglian Water worked in partnership to develop and deploy a new and unique process to service, maintain and replace a range of actuators throughout the Anglian Water region. This extended SLA continues to provide Anglian Water with access to AUMA’s unique ‘rapid response’ service to replace both AUMA and other manufacturers’ equipment, as well as a ‘replacement in advance’ for critical actuators. Cliff Marriner, Head of Integrated Maintenance Engineering, Anglian Water Services, says: “Speed of response is essential to our operations. Given current global supply issues, AUMA’s ability to source and supply locally is a major benefit to us. They have been proactive in their approach which has helped us deliver our service to our customers. They have also introduced a number of added value innovations that demonstrate a willingness to go the extra mile for our benefit.” Anglian Water’s key objective is to maximise availability of actuated valve operations throughout its region. The size and operating parameters of each installation varies, with a wide range of combinations of actuator, controls and drive coupling required to be available at short notice. AUMA’s extensive range of high performance actuators is designed using a modular approach to actuator components. Actuators can be quickly combined to provide a bespoke actuator assembly constructed to the exact requirements of applications. Paul Hopkins is AUMA UK’s Managing Director. He says: “We have worked closely with Anglian Water over a number of years now to refine and shape the service we are able to offer, creating the SLA that we have been able to put in place as part of our supply contract with them. “This collaborative approach has enabled us to shape our service to closely match the needs of Anglian Water. We have also introduced a number of innovations – from reducing our environmental impact through the use of sustainable packaging, to improving health and safety by reducing time on site undertaking repairs. In addition, we have created a unique online Anglian Water Knowledge Base, which is accessible to all registered Anglian Water engineers and technicians. This provides 24/7/365 access to essential information, video tutorials and technical information.” Under Anglian Water’s SLA, AUMA undertakes to receive a faulty unit along with its drive coupling and replace it either from new or from service exchange stock, along with a newly machined drive coupling, within the agreed parameters of the SLA. AUMA offers a ‘Replacement in Advance’ service for critical installations, where AUMA provides a complete replacement unit in advance of the return of the faulty one. Paul Hopkins continues: “Reactive maintenance can lead to all sorts of issues, such as repairs that require ongoing attention. That’s why a scheduled service programme offers a range of benefits – from preventing issues before they happen to better time management.” AUMA is also providing full training to Anglian Water maintenancestaff through its AUMA Certified Engineering (ACE) training. Delivered on-site, on-line or in AUMA’s dedicated training suite at its head office in Clevedon, Somerset, ACE is a structured programme that trains Anglian Water technicians to install, operate, maintain and troubleshoot AUMA actuators, meeting asset management obligations to maintain equipment in line with the manufacturer’s recommendations. Accredited ACE Technicians are provided with ID cards to prove their level of competency. Building, Design & Construction Magazine | The Choice of Industry Professionals
Thames Water, the UK’s largest water and wastewater services provider, has announced the establishment of the FA2050 Technical Partner Framework to support its groundbreaking Strategic Resource Options (SRO) programme. This framework, with a contract value of £300 million and a term of up to eight years, marks a significant milestone in Thames Water’s commitment to ensuring sustainable water resource management for the future. The SRO programme, essential for addressing the evolving needs of the community and the environment, is guided by a gated process prescribed by the Regulators’ Alliance for Progressing Infrastructure Development (RAPID), ensuring rigorous adherence to quality standards and regulatory requirements throughout the development cycle. The Arup Binnies joint venture (JV), along with two other suppliers, is poised to lead on three pivotal SRO programmes: These projects are characterised by a significantly greater scale and complexity than works within typical water utility capital delivery programmes. The new framework encompasses a comprehensive array of services across dozens of disciplines, including engineering, environment, planning, land, engagement, project management and consultation analysis. Binnies UK Managing Director, Scott Aitken commented “The Arup Binnies joint venture is delighted to support Thames Water’s ambitious goals through the Strategic Resource Options. Our team offers a strategic, comprehensive and adaptive approach tailored to deliver large infrastructure schemes that leave a lasting legacy for future generations to benefit from. With our consortium’s wealth of experience in engineering, environmental stewardship and strategic planning, we are uniquely positioned to realise Thames Water’s ambitions for securing and enhancing water resources in the south east and London region. We are dedicated to fostering positive change and creating a resilient future for the communities served by Thames Water.”Arup incoming Chair, UK, India, Middle East and Africa Region, Paula Walsh remarked “Arup is proud to be a global leader on water solutions, with significant experience in the UK delivering work for Thames Tideway Tunnel, the Environment Agency and Natural Resources Wales among many others. We are honoured to be invited to collaboratively support Thames Water’s ambition for more sustainable water solutions. The complexity and challenges of these projects is significant, but with our diverse experience we look forward to developing nature-led sustainable designs for these major new pieces of infrastructure. We have all seen first-hand how the climate emergency is causing water shortages in the UK. We are proud and ready to act to bring more secure, sustainable and resilient solutions that leave a legacy for future generations. Building, Design & Construction Magazine | The Choice of Industry Professionals
Barhale has secured two further contracts under Thames Water’s AMP7 Conditional Allowance Trunk Main Schemes both adjacent to major London railway terminuses. The awards bringing the total value of works Barhale has been awarded under the scheme to £24.8M. The Victoria Station Trunk Main Replacement and the Eversholt Street Mains Replacement join the recently announced Fortis Green Trunk Main Replacement in the programme of AMP7 upgrades to essential water assets across London. At Victoria Station, civil engineering, infrastructure and tunnelling specialist Barhale will rehabilitate more than a kilometre of a 30” cast iron water main. Work is divided into two sections: 609 metres between Eaton Square and Victoria Street and a further 412 metres at Wilton Road to a point immediately south of its crossing with Warwick Way. The majority of the existing main will be sliplined with 710mm SDR17 Polyethylene pipe. Short open cut sections will be required at launch and reception pits and connection locations. At these points the original pipe will be replaced with 600mm nominal bore ductile iron pipework. At Eversholt Street near Euston Station, Barhale will rehabilitate a 660 metre length of 16” cast iron water main also using a combination of opencut and slip lining using 355mm SDR17 Polyethylene pipe. Shane Gorman, Barhale’s Water Director – Southern Region explained that the extremely busy nature of both locations had a significant influence on the engineering solution. “These are two of the most important rail gateways to the capital with thousands of passengers travelling through every hour,” he said. “Also, around each site, the roads are very busy so it has been important to develop an approach that would not only protect future water supply in each area, but one which also minimises the impact to the local communities, businesses and rail and road users. “Our engineers will use a number of launch and reception pits to slipline the existing water main. This means we will be able to avoid the large-scale disruption that can be caused by continuous trenches and deliver a faster, better result. We will also reduce environmental impact in comparison with traditional open-cut methods. “We are very pleased that Thames Water has demonstrated its confidence in Barhale with these awards for schemes at such sensitive locations and we look forward to working closely with the Thames Water team to deliver this innovative solution.” Esther Sharples, Operations Director for London said: “We’re committed to keeping the taps flowing for Londoners and this multi-million-pound investment will further future-proof our network. “By working with Barhale and investing in innovative technology to upgrade our ageing Victorian pipes, we’re also able to reduce disruption for our customers in a busy central London location.” Handover and commissioning is expected at Eversholt Street in Spring of 2024 and at Victoria Station towards the end of 2024. Building, Design & Construction Magazine | The Choice of Industry Professionals
A project to repair and replace two sections of parallel rising mains will rehabilitate an important section of the East London sewer network and will deploy innovative offsite manufacturing to replace an existing discharge chamber. Thames Water has appointed civil engineering and infrastructure specialist Barhale to carry out the £7.8 million programme adjacent to Gallions Reach Shopping Centre in Barking. The existing 800mm twin Store Road Rising Main runs from the Store Road Pumping Station (just north of the Woolwich ferry terminal) to an outfall that discharges into the Northern Outfall Sewer (NOS) near the Beckton Sewage Treatment Works inlet. Two sections of the twin mains will be rehabilitated: One section will require Barhale to replace the existing sewer with two lengths of 142m, 800mm diameter HDPE pipe which will be installed through open cut excavation. At the adjacent section, Barhale will repair a 220m length of each main using Cured in Place Pipe (CIPP) relining. A temporary rider system will be deployed to isolate the works while allowing flows to be maintained. After the pipeline work is completed, a prefabricated GRP discharge chamber will be installed. Shane Gorman, Barhale’s Water Director – Southern Region, explained that the chamber design needed to take into consideration high levels of H2S and weight restrictions on the NOS structure. “We have moved away from a traditional concrete discharge chamber and instead will be demolishing the existing chamber to install a modular GRP unit,” he said. It has several benefits – it’s lighter, reduces H&S risk, decreases carbon in the manufacturing process, cuts down on installation time on site and provides increased longevity and resilience for the network. “These lengths of the mains actually date back to 1977 and they have come under increased pressure from development in the area so, alongside the rehabilitation work, we will also be conducting detailed CCTV surveying of a further 31m of the elevated bridge structure that discharges into the NOS to ensure that it is in satisfactory condition.” “We are also very mindful of the proximity of Gallions Reach Shopping Centre, so our plans set out to minimise disruption and to maintain access for businesses and shoppers.” Building, Design & Construction Magazine | The Choice of Industry Professionals
Leading capital infrastructure and engineering services company, Avove, has been awarded a multi-million-pound design and build framework agreement with Northumbrian Water Group (NWG) as part of NWG’s Asset Management Period 8 (AMP8) £3.6 billion investment programme. The design and build framework, which commences in January 2024 for up to 12 years, covers the delivery of large capital investment programmes, including renewal, refurbishment and replacement for clean and wastewater networks and assets. Avove is one of 12 partners who are part of the Living Water Enterprise, the innovative vehicle developed to deliver large-scale construction programmes on behalf of NWG for AMP8. Avove’s Executive Chair, Mark Perkins, said: “We are delighted to have secured our place on Northumbrian Water Group’s framework for AMP8, which represents a significant contract win for Avove and aligns with our ambitious development plans. “During the tender process, it became clear that our strategic focus on being expert, agile and responsible aligned with the requirements of the Living Water Enterprise. Our delivery model is deeply rooted in our technical expertise, extensive experience, and commitment to service excellence across our entire business. We demonstrated that we are a collaborative provider of infrastructure services focusing on ESG, carbon reduction and innovative approaches to engineering, design and ways of working, whilst offering value for money.” With supply chain partners appointed, Avove will join NWG to form a highly integrated, collaborative delivery organisation which will play a key role in delivering NWG’s upcoming business plan commitments effectively and efficiently. This will consider the complete lifecycle of assets to ensure smarter spending and risk-based planning for the long term. Mark continued: “This is an exciting partnership, creating economic growth and opportunity in the region through a committed and thoughtful deployment of our design and construction expertise. We look forward to collaborating with Northumbrian Water Group and its partners as part of the Living Water Enterprise, driving the best value and capital solutions across the programme and delivering really positive social impacts.” Monisha Gower, Assets Director at Northumbrian Water Group, said: “The market has never been so competitive, when it comes to adding the best partners and people to our team in the run-up to AMP8. We have had to be agile and move fast, employing innovation throughout our procurement practices, and it has paid off, building our new stable of partners and creating the capacity we need for the challenges and opportunities that lie ahead. “Already this year, we have worked with those previously-appointed partners to start the important work of creating a strong culture, centred around collaboration, innovation, safety and wellbeing, all with a clear focus on solutions that work for customers and the environment. “We have brought on board some of the most capable and innovative partners in our sector, each of whom will bring their energy and passion with them for the journey ahead. These partnerships aren’t just going to build more resilient services for our customers, they will build reputations and careers along the way. “The level of integration that we will build with all of our partners requires a lot of work, and we are excited to get started.” Building, Design & Construction Magazine | The Choice of Industry Professionals
Appointment adds to Costain’s wins in the new water regulatory cycle Costain, the infrastructure solutions company, has been appointed by Northumbrian Water (NWG) to help shape and deliver its strategic infrastructure upgrade programme. The framework will see contracts awarded with the potential value of up to £670m to Costain over the 12-year period and builds on significant recent wins in the water sector for the company. The framework contract will see Costain work with the water company and its partners to shape, create and deliver solutions to meet the strategic needs of NWG’s business plan during Asset Management Period 8 (AMP8). The contract starts immediately and will run for a seven-year initial term with an option for a further five-year extension. The framework is the Living Water Enterprise, the innovative vehicle developed to deliver NWG’s complex long cycle programmes in AMP8, comprising 12 partners and the water company. The work will involve: AMP8 will see the biggest investment in the water industry for decades. In 2023, Costain extended into AMP8 its Managed Service Provider contract with United Utilities and its consultancy work with Yorkshire Water. Costain has also won funding from Ofwat to support innovation projects. Alex Vaughan, CEO, Costain, said: “Costain is a leading business partner to the water industry, ensuring that water companies achieve value for money as they meet the needs of their customers and the regulator during this crucial period for water investment. We’re looking forward to supporting Northumbrian Water in this new working relationship, upgrading both its wastewater and water treatment infrastructure to improve people’s lives and safeguard the environment. At Costain, we develop solutions by building collaborative and sustainable relationships with our customers, and we’re excited to begin this vital work. “This contract win not only reflects our continued growth in the water sector, but it also reinforces our commitment to improving critical infrastructure in the North-East of England. This includes major upgrades to the region’s highways and our carbon capture work in Teesside as part of the East Coast Cluster, generating opportunities for regional suppliers and employment for local people.” Building, Design & Construction Magazine | The Choice of Industry Professionals
The first pipes have been laid in a new 57km water pipeline, which will support supplies to more than 200,000 people across the North East. Northumbrian Water’s Project Pipeline: County Durham and the Tees Valley is a huge £155m investment in futureproofing the resilience and quality of water supply to customers. Phase 1 of the project, which will connect Lartington Water Treatment Works in Upper Teesdale with the town of Gainford and across to Shildon, County Durham, is being constructed by Northumbrian Water’s partners, Farrans Construction. The project will see the replacement of sections of the network that have served the area for more than 100 years, alongside new stretches of pipeline. Pipelaying started from Whorley reservoir and the teams are working in the directions of Lartington and Shildon. A second phase is currently being planned, with work scheduled to start in 2025, further connecting the pipeline on to Teesside at Long Newton. James Dawes, Project Manager, said: “This is one of the biggest ever investments in customers’ water supplies here in the North East. Following years of planning and preparation, to ensure we can deliver this project in the best way possible, it’s fantastic to see the first pipes in the ground. “There is still a long way to go, with Phase 1 scheduled to see us working into 2025, and Phase 2 for a further three years after that, but this is a huge milestone. “We will continue to work with Farrans Construction and our other partners, with local stakeholders, communities and customers, as we progress across the south of County Durham and into Teesside, on the road to putting this new pipeline, that will deliver benefits for 200,000 customers, into service.” Stephen Coates, Project Manager, Farrans Construction, said: “We have been on site for the last two months making final preparations ahead of the pipe work being laid so this is an exciting milestone for this project, our client and our team. The route of the pipeline will cross the River Tees and we are constructing a tunnel to carry the pipe 12m below the river bed, close to the villages of Lartington and Cotherstone in Teesdale. “This is an important project which will provide resilience in the water supply for many years to come. We look forward to continuing to support the local community through our social value programme and already we have worked with social enterprises, charities and taken part in the Cotherstone 5km run.”
Earth Change, a division of the Land & Water Group, alongside Project Seagrass and Swansea University Unveil Groundbreaking Automated Seagrass Planter, Revolutionising Large-Scale Seagrass Planting Land & Water, a leading environmental engineering company, and Project Seagrass, a renowned marine conservation organisation, are proud to announce the successful design, construction, and testing of an innovative Automated Seagrass Planter (ASP) patent pending. This groundbreaking technology promises to revolutionise the large-scale planting of seagrass, offering new hope for the restoration and preservation of these vital coastal ecosystems. “We are now convinced we can substantially scale up seagrass glade restoration using the automated planter, taking conventional planting (done with divers on an individual seedling basis) to sea-scape scale planting at 1000’s of plants per day” says James Maclean, CEO of Land & Water. Seagrass meadows play a crucial role in maintaining healthy marine environments, fostering biodiversity, and mitigating climate change by capturing carbon dioxide from the atmosphere. Globally, seagrass has the capability to capture carbon faster than tropical rainforests, accounting for 10 to 18% of total ocean carbon storage, despite covering less than 0.1% of the seafloor [source: Duarte et al., 2005b; Kennedy et al., 2010]. However, due to various human activities and natural disturbances, seagrass habitats have been rapidly declining worldwide. In the UK alone seagrass depletion since 1936 EXCEEDS 30% of the areas of previous colonisation. Recognizing the urgency to restore these critical ecosystems, Land & Water partnered with Project Seagrass and Swansea University to develop a cutting-edge solution. The Automated Seagrass Planter developed by this dynamic collaboration represents a significant breakthrough in seagrass restoration efforts, aligning the use of biodegradable seedpods/hessian sacks developed by Project Seagrass with the installation innovation from Land & Water. This innovative device streamlines and automates the process of seagrass planting, making large-scale restoration projects more efficient and achievable than ever before. Key features and benefits of the Automated Seagrass Planter include: The successful testing of the Automated Seagrass Planter has yielded promising planting results, demonstrating its effectiveness in enhancing seagrass restoration efforts. By enabling the rapid planting of seagrass at scale, this technology has the potential to rejuvenate degraded habitats, enhance coastal resilience, promote marine biodiversity, and provide substantial new habitats for carbon sequestration. Trial planting regimes will be subject to ongoing monitoring by Project Seagrass to validate the effectiveness of the new planting regime. “We are excited by the planting results, and we must now see how this method of planting works in Dale” says Richard Unsworth, Associate Professor Swansea University. Earth Change and Project Seagrass are committed to collaborating with governments, environmental agencies, research institutions, and coastal communities to deploy the Automated Seagrass Planter in large-scale restoration initiatives worldwide. Through these partnerships, they aim to create a positive and lasting impact on the health and sustainability of our marine ecosystems. About Land & Water Land & Water Group is an environmental engineering company specializing in waterway maintenance, dredging, and ecological restoration. With a deep commitment to sustainability, Land & Water provides innovative solutions for preserving and enhancing natural habitats and promoting environmental stewardship. About Project Seagrass Project Seagrass is a leading marine conservation organization dedicated to the conservation and restoration of seagrass ecosystems. Through community, research and action, Project Seagrass strives to raise awareness about the importance of seagrass and work towards its protection for future generations. Building, Design & Construction Magazine | The Choice of Industry Professionals
Yorkshire Water has selected BarhaleEnpure Joint Venture for an £18M project to upgrade Phosphorous removal and flow monitoring at its Dewsbury Wastewater Treatment Works. On completion, the works will ensure Phosphorus concentrations in the final effluent meet water industry national environment programme (WINEP) targets for England. The installation of a UMON4 device will also upgrade monitoring to MCERTS (monitoring certification scheme) standards and will confirm that the treatment works is treating permitted flow to full treatment (2,350 litres per second) when the storm overflow is operating. Central to the scheme is the transformation of the primary treatment capabilities through the replacement of a number of the 14 existing Primary Settlement Tanks (PSTs) with three new, larger tanks and two new primary sludge pumping stations. The project will take advantage of off-site manufacturing to pre-cast the concrete wall sections before they are assembled on site to form the new 8.5m deep (deepest at the central de-sludge cone), 45 metre diameter settlement tanks. An existing beck will be diverted to make way for the construction of the tanks. BarhaleEnpure Joint Venture will convert one of the existing PSTs into a primary distribution chamber that will distribute flow to the new tanks. It will also install a new chemical dosing plant comprising two 40m3 storage tanks and dosing equipment housed in a new DfMA (Design for Manufacture and Assembly) steel-framed building manufactured off-site. An existing inlet channel will be modified to include the UMON4 inlet flume. Mark Wood, Barhale’s Regional Director for Yorkshire and North East England, believes the Dewsbury contract will make an important contribution to the portfolio of projects taking place within the region, guaranteeing water quality in Yorkshire. “Effective management of Phosphorous levels can make a big difference to the quality of water in our rivers and streams,” he said. “This is a major upgrade for the Dewsbury Wastewater Treatment Works which reflects Yorkshire Water’s ambitions for P-removal across its assets and its commitment to meet new standards. This is just one of the many projects being undertaken to improve water quality in the Yorkshire area. “By using off-site manufacturing techniques for several important elements and reusing existing assets, the build programme will also benefit from reduced carbon impact and time on site. “At BarhaleEnpure Joint Venture, we are looking forward to continuing to work closely with the Yorkshire Water team to deliver this important project for the region.” Steve Milling, BarhaleEnpure JV Framework Manager said: “The award of this design and construct contract follows a prolonged Early Contractor Involvement phase of more than two years. Through this period, the BarhaleEnpure JV design team worked closely with Yorkshire Water and Stantec to refine the outline design and introduce significant value engineering changes. “We look forward to delivering a cost efficient plant design which, when commissioned, will be well able to meet the new Phosphorus standard.” Richard Stuart, Director of Capital Delivery, at Yorkshire Water, said: “We are committed to looking at innovative ways to improve the operation of our sites. This project will make use of a range of measures designed to reduce carbon impact and speed up the length of the works. “Not only does this provide significant benefits to us and our customers for a cost saving point of view, the work will ultimately lead to improved water quality by removing Phosphorus from treated effluent and provide improved monitoring at the site to ensure compliance.” The project forms part of Yorkshire Water’s £500 million investment in Phosphorous removal – part of its ongoing commitment to ensure future facilities meet current and anticipated Environment Agency quality targets. Building, Design & Construction Magazine | The Choice of Industry Professionals
Thames Water has awarded civil engineering and infrastructure specialist Barhale a £16.8M contract to upgrade an important water trunk main running through the London Boroughs of Barnet and Enfield. The work, which forms part of Thames Water’s AMP7 Conditional Allowance Trunk Main Schemes, will protect future water supply in the area. Just over 2.3 kilometres of pipe will be replaced by Barhale along a new route running north west from Pert Close, Barnet to the southern end of Cannon Hill, Enfield. The new pipeline will be laid through the Friern Barnet retail park, and within: Station Road; Inverforth Road; Upper Park Road; Palmers Road; Bowes Road; Brookdale; Arnos Park; and Arnos Grove. Sections of the route will be tunnelled beneath the A406 North Circular Road, the East Coast Main Line and Pymmes Brook, eliminating disruption at these critical infrastructure crossings. Barhale will replace the existing 24” steel pipe with a combination of ductile iron or steel and high-density polyethylene pipe laid using open cut trenches and micro-tunnelling. Shafts will be excavated either side of each tunnel section to serve as launch and reception chambers for the tunnelling works, which will make up 250 metres of the total length. Shane Gorman, Barhale’s Water Director – Southern Region, said: “Now is this right time to upgrade this aging main pipe. Installing a new trunk main will ensure this section of the water network is in optimum condition for the future. “This is a significant mains upgrade programme in a busy part of London and we have worked closely with Thames Water to ensure that the design maximises value while minimising potential disruption.” The works are expected to be completed by December 2024. Building, Design & Construction Magazine | The Choice of Industry Professionals
