Precast concrete pipe, manhole, and chamber suppliers for sewer, drainage, and utility infrastructure.

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    Matched providers: 47

    Top countries: United Kingdom, Belgium

    Popular technologies: Acid Dosing Systems, Aerated Lagoons, MABR

    Precast Concrete Pipes: Jacking, Gravity Sewer, and Structural Standards for Drainage Infrastructure

    Precast concrete pipes are manufactured off-site in controlled factory conditions using centrifugal spinning, wet-cast vibration, or dry-cast compaction methods, producing circular and non-circular sections for gravity drainage, culverts, jacking pipes, and water mains. BS EN 1916:2002 (Concrete pipes and fittings) governs circular concrete pipes in the UK and EU: specifies Class 120D (design crushing load), 135D, 150D, 180D, and 240D strength classes (crushing load in kN per metre length at 0.25 mm crack width).

    US standard: ASTM C76 (reinforced concrete culvert, storm drain, and sewer pipe), Class I to Class V by D-load (D0.01 crack load per metre diameter). Standard diameters: DN 150 to DN 3000 mm; pipe lengths 1.0 to 2.5 m standard (jacking pipes up to 3.0 m). Concrete class: C40/50 minimum per EN 1916 for durability in aggressive soils; sulphate-resisting cement (SRPC) for Class AC3 to AC5 ground aggressivity; high alumina cement (HAC) historical use, now deprecated in UK.

    Jacking pipes (pipe jacking, microtunnelling, thrust boring) are precast concrete pipes designed for installation by hydraulic thrust from a jacking frame without open excavation. Jacking pipe requirements (BS EN 1916:2002 Class J, DWA-A 161 German standard): compressive strength greater than 60 MPa; end faces machined flat to 0.25 mm parallelism for uniform force distribution; joints with rubber sealing gaskets and wooden or HDPE packer rings to distribute jacking loads (up to 3,500 kN/m2 on face for long drives).

    Maximum jacking distances: DN 600 mm up to 500 m per drive; DN 1200 mm up to 200 to 300 m; intermediate jacking stations (IJS) inserted into the pipe string for longer drives to reduce skin friction (bentonite lubrication reduces friction coefficient from 0.1 to 0.15 to 0.01 to 0.05). Applications: trunk sewer installation under roads, railways, and rivers; culvert installation; utility crossings. UK market: approximately 15,000 m of pipe jacking per year; costs GBP 1,000 to 5,000 per linear metre depending on diameter, soil, and crossing complexity.

    Structural design and installation of precast concrete gravity pipes: bedding class determines required pipe strength. BS EN 1295-1 (Structural design of buried pipelines) and UK practice per TRRL Report 78 and CPDA guidance: Class B bedding (granular material 100 mm below pipe invert, haunching to 70 percent of diameter): bedding factor 1.9; Class A (concrete bed and surround, haunch to 120 degrees): bedding factor 2.6.

    Installation: excavation in stable ground to invert level; bedding layer compacted to 95 percent proctor density; pipe laid to line and level with laser or boning rods (max deviation 10 mm); joints pushed home with rubber gasket lubrication; jointing material: EPDM rubber ring (DN less than 900), profile seal or compression collar (DN greater than 900). Backfill: granular material (10 to 40 mm gravel) to 300 mm above crown, then selected fill in 150 mm compacted layers. UK Sewers for Adoption (7th edition) and Specification for Highway Works (SHW) specify concrete pipe installation requirements for adoptable assets.

    Frequently Asked Questions

    What strength class of concrete pipe do I need?

    Concrete pipe strength class selection uses the modified bedding factor method: calculate design crushing load = installed external load (W, soil overburden + traffic) divided by bedding factor (Fm). Soil load: Marston's formula for trench condition; traffic surcharge per BS EN 1991-2 (HA, HB, or SV loading). Common results for UK adoptable sewers: DN 300 at 2.0 m cover under normal roads: Class 120D with Class B bedding typically sufficient; DN 600 at 3.0 m cover: Class 150D or 180D with Class B bedding; DN 1200 at 4.0 m cover: Class 180D or 240D with Class A bedding or concrete surround. Eurocode combination: BS EN 1295-1 with BS EN 1991-1-1 and Annex A provides the formal calculation basis. CPDA (Concrete Pipe and Precast Association) technical guidance and their pipe-sizing software provide simplified selection tables. Always check with the pipe manufacturer at tender stage for jacking pipes as each application requires specific thrust-face area calculation.

    How long do precast concrete pipes last?

    Design life of precast concrete pipes: BS EN 1916 specifies a 100-year design life when correctly designed, manufactured, and installed in ground conditions within the pipe's durability specification. Achieved service life: Victorian brick and concrete sewers from the 1850s to 1880s remain structurally functional in UK cities (150+ years), though many require relining for hydraulic upgrading or crack repair. Life-limiting factors: hydrogen sulphide attack in wastewater sewers (biogenic sulphuric acid corrosion, BAC) - microbiologically produced H2SO4 dissolves concrete at rates of 1 to 10 mm/year in severe conditions; requires sulphate-resistant or high-alumina protective lining; aggressive groundwater (pH less than 5.5, high sulphate greater than 3,000 mg/L, CO2 greater than 30 mg/L aggressive CO2) attacks concrete matrix; stray current corrosion of reinforcement in electrically active ground; structural loading overload (unexpected traffic surcharge, ground movement). Inspection: CCTV survey per WRc Manual of Sewer Condition Classification (MSCC5) grades structural and service condition; recommendations for immediate, short-term, or long-term maintenance or structural rehabilitation.

    What is the difference between jacking pipe and standard concrete pipe?

    Jacking pipes differ from standard installation concrete pipes in several critical ways: (1) End faces: jacking pipe ends are machined flat and parallel to 0.25 mm tolerance; standard pipes are cast-face only (less flat); the flat face is essential to distribute the jack thrust (up to 3,500 kN/m2) uniformly without local crushing; (2) Concrete strength: jacking pipes require greater than 60 MPa compressive strength; standard pipes may be as low as C40/50 (approximately 40 MPa characteristic); (3) Joint design: jacking pipe joints transmit compressive load through wooden or HDPE packer rings plus EPDM rubber water seal; standard pipe joints rely primarily on the rubber ring for water-tightness; (4) Handling: jacking pipes have steel lifting sockets; standard pipes have cast lifting holes; (5) Length: jacking pipes longer (up to 3.0 m vs 1.0 to 2.5 m standard) to minimise number of jacking thrusts; (6) Wall thickness: jacking pipes have greater wall thickness to resist jacking stress; (7) Internal surface: smooth internal finish for hydraulic efficiency and ease of CCTV inspection after installation. Standard pipes cannot be used as jacking pipes without structural recalculation and end-face modification.

    Are concrete pipes suitable for aggressive soils?

    Precast concrete pipes can be designed for aggressive ground conditions but require careful material specification: Ground aggressivity classification per BS 8500-1 (concrete specification): Class AC1 (pH 6.5 to 7.0, sulfate SO4 less than 500 mg/L soil or 200 mg/L groundwater) - Portland cement C40/50 adequate; Class AC3 (pH 4.5 to 5.5, SO4 500 to 3,000 mg/L) - sulfate-resisting Portland cement (SRPC, C3A less than 3.5 percent) or CEM II/B-V blended cement + FFA; Class AC4 and AC5 (pH less than 4.5, SO4 greater than 3,000 mg/L) - high sulfate resistance concrete with FFA or GGBS addition, minimum 360 kg/m3 cement equivalent, w/c ratio less than 0.45. Biogenic sulphuric acid corrosion in wastewater sewers: independent of soil aggressivity; generated internally by Acidithiobacillus thiooxidans bacteria on concrete crown above waterline; control by: epoxy lining (100 to 500 micron), PVC lining, calcium aluminate cement (HAC) concrete (resistant to pH greater than 2.5), or vitrified clay (no concrete exposed). Alternative materials for worst conditions: vitrified clay, HDPE, or GRP pipes where concrete durability cannot be guaranteed.

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    Precast Concrete Pipe & Manhole Companies

    Precast concrete pipe, manhole, and chamber suppliers for sewer, drainage, and utility infrastructure.

    6 specialist providers · 41 related · 5 countries

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    United Kingdom43
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    Specialists in precast concrete pipe & manhole

    Providers whose services or self-declared specialties match this category.

    Althon Ltd

    United Kingdom

    Althon Precast Headwalls and Water Management Althon Limited manufacture and distribute specialist water management products to the construction industry. We design and manufacture precast concrete headwalls to meet Sewers for Adoption and Severn Trent Guidelines. Our product range includes flap valves, penstocks and stop logs as well as trash screens and outfall safety grilles. Althon also manufacture precast concrete penstock chambers and offer a large range of commercial and industrial application drainage channels. Headwalls Althon manufacture the largest range of precast concrete headwalls in the UK for pipes, culverts and box culverts. Precast headwalls are an important part of most SUDS drainage schemes, preventing erosion at the point of discharge into watercourses such as attenuation ponds, detention basins, rivers, ditches and swales. Headwall accessories All models can be factory fitted with a range of accessories such as flap valves, penstocks, Kee Klamp® handrails as well as a selection of gratings and ladders and other flow control methods such as dissipation blocks and cascade panels. Althon Headwall Drainage Standards & Guidelines Designed to BS EN 1992-1-1 (EC2) standards Manufactured to BS EN 15258 & BS EN 13369 standards Severn Trent Water specifications for rectangular precast outfalls Anglian Water approved headwalls Angled ranges that meets the EA’s ‘Standard rules SR2015 No 27’ Selected ranges meet the Sewers for Adoption 7th Edition guidelines to be adopted by local Water Authorities & comply with the Water Industry Regulations 2011 CPD courses https://cpduk.co.uk/directory/profile/althon-limited

    FLI Precast Solutions

    United Kingdom

    FLI Precast Solutions (formerly FLI Carlow) provide design, engineering and manufacturing services for the off-site manufacture of specialist concrete infrastructure and attenuation systems. Our markets include Water, Wastewater, Energy and Storm Attenuation in the UK & Ireland and bespoke projects globally. SERVICES INCLUDE Design, engineering and manufacturing services for the off-site manufacture of specialist concrete infrastructure and attenuation systems. Design to national and international water industry standards and our semi-precast modular designs make us the industry leader in off-site concrete engineering and manufacture. By early involvement and integrating with our clients’ design teams we can accelerate and improve design optimisation and reduce cost. The value is in the solution, and off-site manufacturing and fabrication leads to higher efficiencies and lower risks and costs. Framework agreements enable us to add more value through collaboration, innovation, economies of scale, supply chain partnering and cost management. Our products and designs are engineered to provide solutions to many challenges facing our clients: water retention, water storage, water conveyancing, water management, water treatment, fire-resistance criteria, chemical resistance parameters, infrastructural products, retaining walls, coastal erosion, decorative walls, to name a few. We are a solutions provider using innovative off-site concrete engineering and our industry leading semi-precast modular designs. The company is part of the FLI Group which is a diversified group of companies providing environmental solutions, services and technologies to private and public sector customers in the UK, France, Ireland and throughout the world. PRODUCTS INCLUDE Service reservoirs Process settlement tanks (PST / HST / FST / etc) Storm & attenuation tanks (network or site based) Process structures (ASP / TSR / GAC / RGF / etc) MCC service foundations Bund wall system Chambers Channel & lids Comms chambers Multi-purpose chambers Bespoke culverts Holding tanks Barriers Demountable fence supports (international airport approved) Ballast blocks Dry flow channelling Foundation bases Blast fence supports

    FP McCann Ltd

    United Kingdom

    With sixteen divisions and twelve manufacturing plants, FP McCann is the UK’s largest precast concrete manufacture. They provide an extensive range of precast concrete solutions, including drainage, tanks, tunnels and shafts, rail, power and infrastructure, filter bed systems, walling, fencing, agricultural, architectural and structural building solutions, flooring, dock leveller pits and specialist precast products. McCann will customise their solutions to ensure they create maximum value for your project, accommodating your site conditions, design requirements and construction needs. The quality and reliability of McCann’s products and services are the foundation of their success. They are constantly developing and improving their solutions, whilst striving to exceed their customers’ expectations. McCann’s extensive range of precast drainage products include pipes, wide wall/manhole chambers/soakways, cover slabs, gullies, headwalls, box culverts, fall arrest systems, house inspection chambers, catchpits, flow control and valve chambers, hydrodynamic separators, rain harvesting systems etc. They also provide bespoke multipurpose tank chambers and panel systems. The geographical spread of their twelve modern precast manufacturing plants, coupled with their ability to deliver to their clients’ specifications on major projects across the UK and Ireland, has established McCann as a valuable and reliable partner. At McCann, they promise to build strong, sustainable relationships with their stakeholders. By implementing their corporate values, they aim to deliver on this guarantee through their products, services, communications and, above all, the behaviour of their people. They recognise the importance of operating with integrity and apply high standards of corporate governance in the conduct of their business.

    Bartlett Contractors Ltd

    United Kingdom

    Delivering Excellence in Civil Engineering, Water and Waste Infrastructure Since 1959 For more than six decades, we’ve been at the forefront of the water and waste sectors, combining deep-rooted experience with an industry-leading service offering. This strong heritage continues to drive our commitment to delivering the best outcomes for our clients—and we’re proud of the results we’ve achieved. Our work is founded on strategic partnerships and long-term frameworks, enabling us to provide specialist infrastructure services that enhance water quality, boost operational efficiency, and improve network resilience. A key strength lies in our direct delivery model. With a highly skilled workforce, we deliver innovative solutions through early contractor involvement, design and build, and modern construction practices—ensuring exceptional value and performance. We believe that success is not just measured in project outcomes, but also in the positive legacy we leave behind. Through community engagement and collaborative delivery, we ensure an excellent customer experience and help our clients maintain trust with stakeholders.

    Marshalls Civils & Drainage

    United Kingdom

    Marshalls Civils & Drainage is a precast concrete business with a difference as innovation and diversification is the key to its success, a market leading manufacturer of concrete products specializing in concrete drainage products including pipes, manholes and gullies. The Marshalls Off-Site solutions team offers a diverse range of cost and time saving products that are designed, engineering and manufactured off-site under factory conditions, these include modular walls, platforms and tank systems, preformed manholes and bases and watertight sealed manholes and a range of bespoke precast products. The Redi-Rock retaining wall system is an ingenious, space saving solution for the retention of earth for a wide range of retaining, force protection, landscaping and flood protection applications. Marshalls specialist precast concentrates on producing high quality elements which provide the best value for customers producing goods like spillway blocks, beams, stairs and terraces, reinforced panels and bespoke products to your specification. The environmental team developed a range of solutions for water management including harvesting, storage, flow control and treatment. Concrete has many advantages over other materials for storage of water and Marshalls has maximised the benefits producing systems for collecting and storing rainwater and grey water.

    A-Consult Ltd

    United Kingdom

    A-Consult specialise in providing solutions for the storage and handling of liquids in the agricultural, water industries and industrial sectors. Established in 1986 we have successfully constructed over 10,000 tanks throughout the United Kingdom and Europe. Aqua-Tank provides a safe, cost effective method of containment with numerous applications within the water, waste and industrial sectors. Guaranteed factory-controlled quality combined with a robust structure along with tried and tested design principles, offer life expectancy previously only achieved with cast in situ installations. A-Consult are the market leaders in the design, manufacture and installation of precast concrete storage tanks. SETTLEMENT TANKS Settlement tanks can be supplied with either an integrated concrete coping top which supports the travel of either a full or half bridge scraper. Tank sizes range from 4.0m diameter to greater than 50.0m, designed to allow backfilling, enabling access to M&E equipment such as scraper bridge, motor and travelling wheels. Incorporating the patented EPDM jointing seals, the post tensioned settlement tanks can be designed to accommodate pipe work entries through the precast wall panels. Design and constructed to BS8110 and BS8007 and compliant to all relevant Euro Codes. FILTER TANKS The A-Consult tank system has been used to construct many types of filter tanks. The tanks can be designed as water retaining structures if necessary, with letter box opens to facilitate the trickling filtration systems. PROCESS TANKS In such a volume related sector the A-Consult precast concrete tank system offers extensive flexibility in both tank diameters and wall heights. Diameters start at 4m and increase in increments of approximately 350mm, wall heights start at 2m and increase in increments of 100mm topping out at 12m. STORAGE TANKS A-Consult tanks have been used for the storage of many different materials on both wastewater treatment plants along with sewage treatment plants. All materials used in the construction of our tanks are DWI or WRAS approved allowing the storage of potable water. LEACHATE TANKS With a 50-year design life the A-Consult precast concrete tank system offers a cost effective and robust solution to many process and storage applications.

    Related providers

    Listed for overlapping capabilities, not for precast concrete pipe & manhole specifically.

    Ecosystems International

    Verified

    Indonesia · 51-200 employees

    PT Ecosystems International (PT ESI) was established at Jakarta on 21st November 2006. We are an industrial effluent treatment systems integrator specializing in electrocoagulation (EC), a unique waste water treatment profile. PT ESI has capabilities in designing complete waste water treatment solutions by combining various effluent treatment systems such as the electro-coagulation, biological, chemical processes and membrane filtration, offering its customers a wide and comprehensive range of solutions, tailored to suit their various needs – ranging from basic effluent treatment for discharge to effluent recycling for water reuse. The Company is experienced in handling the design, engineering, procurement, construction and operation of new Effluent Treatment Plants (“ETP”) and possesses expertise in retrofitting existing ETP to increase the flow rate and treatment capability without any major infrastructure increase PT ESI is also a premier waste water treatment service company specializing in handling waste water generated from Exploration (Drilling) and Produced Water. Customers in Indonesia include major Oil & Gas companies such as Pertamina, Exxon, Chevron, Petro-China and Medco. Operations in Indonesia are provided by both mobile and fixed units. At drill sites where waste-water recycling is required, PT ESI supplement these treatment units with skid mounted mobile Reverse Osmosis systems. The technologies and solutions employed by PT ESI are developed in-house and examples of these are its proprietary Trident™ Electro Contaminant Removal (“ECR”) system, the Stage Contaminant Removal (“SCR”) process and Mobile On-Site Waste-Water Treatment (“OWT”) units

    Reverse Osmosis (RO) SystemsUltrafiltration (UF) SystemsMulti-media Filtration (MMF) Systems

    MAX FIBER INDIA

    Verified

    India · 200+ employees

    About MAX FIBER INDIA MAX FIBER INDIA is an Ahmedabad, Gujarat-based manufacturer and supplier of industrial chemical storage tanks, process equipment, piping systems, and corrosion-resistant solutions. The company serves industries including chemical processing, pharmaceuticals, water and wastewater treatment, petrochemicals, food & beverage, textiles, mining, agriculture, pulp & paper, and power generation. The company specializes in HDPE and PP Spiral Tanks, with capacities listed from 0.5 KL to 100 KL, along with FRP Tanks, Pickling Tanks, Spiral Reaction Vessels, PP-FRP Blowers, Pollution Control Systems, HDPE Transportation Tankers, and HDPE/PP/PPRC/PVDF pipes and fittings. Core Product Range HDPE Spiral Tanks PP Spiral Tanks PPH Tanks FRP Tanks PVDF Tanks / PVDF-lined equipment HDPE, PP & FRP Reaction Vessels HDPE & FRP Lining PP + FRP / PPH + FRP Tanks Pickling Tanks Chemical Storage Tanks HDPE Transportation Tankers PP-FRP Blowers Pollution Control Systems HDPE, PP, PPRC & PVDF Pipes and Fittings Manufacturing & Engineering MAX FIBER INDIA focuses particularly on spiral-wound thermoplastic tank technology. Its website states that HDPE/PP Spiral Tanks are designed using advanced spiral winding technology and according to RITA DVS 4.0. The listed HDPE/PP tank range includes customized diameters and lengths, with capacities up to 100 KL. The company also emphasizes customized engineering based on the customer's capacity, chemical service, operating conditions, dimensions, nozzles, manholes, accessories, and installation requirements. International Supply MAX FIBER INDIA positions itself as an Indian manufacturer and exporter serving customers in India and international markets. Based on the company information you've shared, you can strengthen your corporate profile by highlighting your supplied projects/customers in UAE/Dubai, Bahrain, Qatar, Saudi Arabia and South Africa, including your experience supplying tanks to Dubai Municipality.

    Operation of Water & Wastewater Treatment PlantsIndustrial Wastewater Treatment PlantsMunicipal Wastewater Treatment Plants

    DALI - Pipeline Monitoring

    Belgium · 1-50 employees

    DALI - Pipeline Monitoring specializes in advanced real-time leak and intrusion detection for pipelines using Distributed Acoustic Sensing (DAS) and fiber optic technology. Their solutions help utility companies and industrial facilities minimize Non-Revenue Water (NRW) losses, reduce waste, and prevent costly incidents, ensuring efficient pipeline management.

    Online/Real-Time MonitoringRemote Sensing and TelemetryIoT and Smart Monitoring

    Gainey's Concrete

    United States

    Gainey's Concrete is a Holden, Louisiana based manufacturer that designs and installs precast concrete wastewater treatment plants with third party engineering approval, alongside sanitary, stormwater, and industrial precast products. Its treatment plants use extended aeration with return activated sludge plus nitrification and denitrification to remove ammonia and organics. The company also references breakpoint chlorination, ion exchange, and zeolite filtration for ammonia control.

    Precast concrete wastewater treatment plant manufacture and installationSanitary and stormwater precast productsIndustrial precast products

    Donegan Civil Engineering

    United Kingdom

    Founded in 1992 by Managing Director Valentine J Donegan and built on a personal reputation, Donegan Civil Engineering is a family-owned award-winning business that delivers the capabilities, expertise, innovation and experience to undertake large scale projects as either principal contractor or specialist sub-contractor. Our areas of expertise for the private and public sector includes: Shaft-Sinking Pipe-Jacking TBM Tunnelling Micro Tunnelling Hand Driven Tunnelling (including Timber Headings) Complex Sewer Connections S185 Utility Diversions and Crossings Pipeline Construction Opencut Drainage Large Cofferdam Excavations Reinforced Concrete Structures With a proven 30-year track record of delivering a range of projects, Donegan Civil Engineering continues to build on our fantastic reputation to continue to collaborate and innovate to ensure we continue to deliver for our long list of established clients and potential new clients. We own, maintain and operate an extensive fleet of general civil engineering and specialist plant and equipment including; tunnel boring machines, micro tunneling systems, pipejacking systems, shaft-sinking equipment, cranes, wheeled & tracked excavators, generators and light and heavy goods transport. Our continued investment in up-to-date technologies and equipment, as well as the continued development of our highly skilled operational teams has reinforced and enhanced our capability in all areas of operations. As a business we endeavor to develop long-lasting relationships with our clients, and our business has grown predominantly from repeat work and framework opportunities. Our ethos is simple; construction is about providing a service and as such we always work collaboratively and flexibly with our clients in a spirit of openness and honesty. We work diligently with our clients to find innovative solutions to traditional construction problems whilst applying the latest information and construction technologies to help drive efficiencies and reduce waste in our processes without compromising on quality.

    Concrete Repairs Ltd

    United Kingdom

    Concrete Repairs Limited (CRL) is a specialist asset maintenance contractor who is here to help you with the inspection, repair & refurbishment of your concrete water assets. CRL provide comprehensive repair and refurbishment services tailored to the needs of the water and wastewater sector throughout the UK. These include the inspection, repair, refurbishment and upgrading of service reservoirs, contact tanks, water towers & wastewater treatment plants. With over 65 years of experience, CRL understands the importance of maintaining water quality and supply to customers. Therefore, when planning repairs, we prioritise effective programming of the work and optimal utilization of the assets being repaired. Our choice of repair methodologies and materials always reflects this commitment. At CRL, we pride ourselves on being a reliable partner to the water companies. We collaborate closely with them to identify problems early, quantify the necessary repairs, and establish a timeline for refurbishment. Throughout this process, we focus on ensuring the longevity and optimal performance of the assets. CRL provide proven and successful cost-effective repair and refurbishment options which meet our clients’ objectives of upgrading and increasing the life of their structures. CRL is capable of undertaking individual projects of up to £20M, either under competitive tender, or through Partnering/Framework arrangements. Our broad experience across various sectors ensures we deliver efficient, robust, and technically advanced services.

    OGI Groundwater Specialists Ltd

    United Kingdom

    Established in 1989, OGI Groundwater Specialists is an independent, privately owned British company specialising in designing Groundwater Control systems to dewater and strengthen wet ground. OGI provides professional services to the Wastewater Industry to reduce the cost of temporary works during the construction of subsurface structures and pipelines. Working with the project structural engineers, OGI also develops systems to reduce the earth pressures on underground structures which can result in a significant reduction in construction programme and out-turn costs. Groundwater Control and Geotechnical Design at previous UK Wastewater Projects: Designing efficient dewatering systems to minimise installation, hire and fuel costs. Stabilising retaining embankments as an alternative to retaining walls. Design of king post walls as an alternative to secant or contiguous pile walls. Design of passive pore pressure relief systems to reduce artesian uplift pressure and so reduce costs of additional excavation and reduce mass of concrete gravity structure. Combining technologies to provide innovative solutions to reduce excavation costs. Delivering procedures that reduce Carbon Dioxide emissions. Temporary works designs that are integrated with the permanent works designs to ensure safe construction, including sufficient space surrounding the structure. OGI’s designs are developed from over 25 years of experience in delivering Groundwater Control solutions to contractors, consultants and project clients. Our designs are presented as clear practical drawings supported by comprehensive design certificates. Groundwater Control and Geotechnical designs follow Eurocode EC7, which provides a standard framework for OGI’s safe, innovative and cost effective designs. We also present regular Groundwater Control seminars to industry suitable for project managers, engineers and anyone who is interested in learning how to recognise, understand and apply various techniques to overcome groundwater problems and to mitigate project damage, delay or accidents. See our web site for seminar details.

    JN Bentley Ltd

    United Kingdom

    JN Bentley Ltd (JNB) is a leading, privately owned construction services provider in the UK. We now have an annual turnover in the region of £100 million, generated from projects in both the building and civil engineering markets. JN Bentley JN Bentley delivers civil engineering contracting services, together with mechanical and electrical expertise. Founded in 1972, the company has grown largely from repeat work, maintaining a focus on providing construction services with an open and honest approach. The JN Bentley team numbers over 2,000 colleagues. We pride ourselves on our large, directly employed construction workforce, a team that gives us and our clients added assurances for safety and quality. We look to find innovative solutions to traditional construction challenges, applying the latest technologies to drive efficiency and reach sustainable outcomes. Across JN Bentley and our design and build companies MMB and JBA Bentley, annual revenue now exceeds £500 million. Mott MacDonald Bentley (MMB) MMB provides fully integrated civil engineering feasibility, design, construction and commissioning services to the UK water sector. Established in 1999, it harnesses the contracting strength of JN Bentley and the design specialisms of Mott MacDonald to form a 3,000-strong team – with further expertise brought in from across the Mott MacDonald Group when required. MMB was formed specifically to deliver long-term, high-volume capital programmes collaboratively with water companies. With a focus on innovation, affordability, and flexibility, since securing its first contracts with Yorkshire Water in AMP3, MMB has grown to deliver work for eight of the largest water companies in the UK.

    AVK UK Ltd

    United Kingdom

    AVK UK is part of the globally renowned AVK Group who are based in over 100+ countries and has over 4,500+ employees worldwide. The AVK Group is privately owned by the founder Niels Aage Kjaer, and is named after his father Aage Valdemar Kjaer. As part of the AVK Group, we pride ourselves in being one of the leading valve manufacturers for the water, sewage, firefighting, and gas industries. Our product program comprises a large range of valves, hydrants, pipe fittings and accessories, each complying with the highest standards of safety and durability. Our focus is on the products designed and manufactured to the British Standards, however, the AVK Group today offers products in accordance with the most national and international standards. Our product portfolio also includes AVK Smart Water Management valves and sensors for real-time network information and status. We also offer Pressure Management solutions such as air valves, PRVs, and control valves, AVK Assist which enables GPS product location and, the market leading Donkin PUR range of gas valves. Our UK sales offices and manufacturing sites respond quickly to the needs of our customers and for fittings required on an express or emergency service we have a dedicated same day 24/7 helpline – 0800 202 8228. In addition, we cooperate with local and national distributor partners to offer our customers AVK products as part of multi-product packages. AVK UK is the sales division and has offices in Staveley, near Chesterfield, also known as the home of Bryan Donkin gas valves, and Northampton. AVK in the UK comprises of 7 companies and has over 500 employees. Find out more here: https://www.avkuk.co.uk/en-gb/solutions-and-information/about/avk-in-the-uk/avk-uk

    Siltbuster Group

    United Kingdom

    Established for over 20 years, the Siltbuster Limited provides rapidly deployable, “modular off the shelf” water treatment solutions to the construction, industrial and municipal markets, with a client base ranging from the world’s most recognisable multi-national corporations to small enterprises. Siltbuster provides a wide range of water and wastewater treatment equipment for the industrial and municipal markets, including: Packaged lamella dissolved air flotation (DAF) units. Lamella clarifiers. Packaged biological treatment systems. Oil/water separators. Pipe flocculators. Reaction tanks. Containerised dosing systems. In the UK, Siltbuster has pioneered the concept of offering this plant through our extensive hire fleet. Approximately 20 major contracts and circa 50 smaller projects are undertaken each year for a diverse range of clients, many of which are some of the UK’s best-known companies. In addition to the industrial/municipal sector, Siltbuster has undertaken a number of mine water treatment projects in many countries, for example, the UK, Ireland, Greece, France, USA, Canada, Australia and Slovakia. The Siltbuster team pride themselves in their ability to react rapidly and in compliance with the project constraints, delivering mobile or permanent solutions tailored to meet your individual needs.

    Environmental Techniques Ltd

    United Kingdom

    Environmental Techniques was established in 1992 to provide trenchless drainage inspection, cleaning and rehabilitation throughout the United Kingdom and Ireland, with offices in Northern Ireland, Scotland and the Isle of Man. Our fleet of inspection vehicles provide surveying services for wastewater network assets including CCTV surveys, sonar surveys, manhole mondition and dimensional surveys, dye tests and impermeable area surveys. Our jetting rigs provide cleaning, unblocking and degreasing of sewers and culverts. We also provide services for pipeline rehabilitation including CIPP lining, localised patch repairs and GRP lining. In 2017 Environmental Techniques became part of the Aegion Corporation which recently in 2024 rebranded as Azuria Water Solutions. As part of Azuria Water Solutions, Environmental Techniques have further developed their technical capabilities through the use of carbon fibre reinforced polymers and drone survey technology. Environmental Techniques continue to push the boundaries of CCTV surveys and investigation through the use of drone and LiDAR technology. Environmental Techniques work closely with clients to understand the needs in advance of carrying any work out. With close liaison and good communication, Environmental Techniques are able to provide savings and benefits to clients on a regular basis. Specialising in: Sewer cleaning & desilting CCTV surveys Flow monitoring & IAS surveys CIPP lining Robotic cutting CFRP Manhole surveys Man entry surveys Patch repairs Manhole rehabilitation Man entry pipe & culvert rehabilitation

    APL Construction Ltd

    United Kingdom

    APL Construction was incorporated in February 2011 by Aidan Langan. The company headquarters are in South Lanarkshire, Scotland. APL Construction currently employs about 40 members of staff. The company turnover for 2023 was just over £5m. APL work mainly on Scottish Water projects however we have also carried out works on Severn Trent and Northumbrian Water projects. APL are capable in both water and wastewater sectors and carry out all the aspects of civil engineering required in these fields. The company continues to grow year on year and invests heavily each year on staff training, premises, fleet, plant, and equipment. The company currently has over £1m worth of owned plant at its disposal. Capabilities include: Cofferdams Deep drainage Concrete structures Groundworks Rising mains Butt fusion Pressure testing Ductile installations Ducting Cable laying Roadways Hard landscaping Additional information can be found on our website.

    Waterco

    United Kingdom

    Waterco are engineering and environmental consultants providing design and consultancy services relating to water, drainage and flood risk. We have expertise in engineering and environmental disciplines and are supplemented by a network of specialist independent consultants with extensive experience in major development projects throughout the UK. Our focus is on achieving the optimum solution for our clients, meeting their objectives and adding value to their projects. We have gained a reputation for a friendly, professional and flexible approach since our establishment in 1990. Our Services Water industry infrastructure and non-infrastructure projects Pipelines & Sewerage Water & Wastewater Treatment & Systems Pumping Stations Contingency Planning Security Assessments Asset Management Surge Analysis Hydraulic Modelling Flood Risk Assessment Breach Analysis Coastal & Shoreline Analysis Surface Water Management Sustainable Drainage Systems Natural Flood Management/Catchment Approaches Clients and Partners Our clients and partners include water companies, consultants and contractors. Incorporating their experience and knowledge, we investigate and develop practical designs, to help deliver cost-effective solutions. Geographic Coverage We undertake projects all across the UK, with many of our reporting services being desk-based, travelling to site visits and meetings as required. We have also been involved in international projects such as a major development in Lekki, Nigeria. Accreditations We currently have an ISO 9001 : 2015 accredited Quality Management System; have a BS8555 : 2003 certified Environmental Management System; have design approval in the Water Industry Registration Scheme (WIRS); have maintained Investors in People recognition since 2011 and operate an ICE approved training scheme.

    Macrete Ireland Ltd

    United Kingdom

    Macrete are one of the few truly independent precast concrete manufacturers within the United Kingdom and Ireland. Having over thirty years experience in the design and manufacture of a wide range of reinforced and pre-stressed concrete products and systems, Macrete are established at the forefront of the precast concrete industry. Many types of precast concrete solutions are designed and supplied to the civil, rail, water, and stadia, marine and agricultural markets. Using a superior distribution network Macrete successfully export products anywhere in the UK and Ireland. Macrete believe in developing strong long-term partnerships with their client base. The majority of clients that work with Macrete continue to do so on a repeat basis and their satisfaction is the fundamental objective. Macrete continually endeavour to evaluate the market place to increase market share and have experienced a steady increase in sales over the last 5 years. Our mission is to be recognized as a major provider of precast concrete technology, products, services and solutions and to serve our customers regionally, nationally and internationally. Our vision is for our customers to see us as a desirable business partner with safe and efficient processes; a leader in quality; constantly innovating and expanding services as well as a business with highly ethical standards.

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    Buyer's guide

    The buyer's guide to precast concrete pipe & manhole

    OverviewFAQScenarioQuestions to askCost driversRegulations

    Precast Concrete Pipes: Jacking, Gravity Sewer, and Structural Standards for Drainage Infrastructure

    Precast concrete pipes are manufactured off-site in controlled factory conditions using centrifugal spinning, wet-cast vibration, or dry-cast compaction methods, producing circular and non-circular sections for gravity drainage, culverts, jacking pipes, and water mains. BS EN 1916:2002 (Concrete pipes and fittings) governs circular concrete pipes in the UK and EU: specifies Class 120D (design crushing load), 135D, 150D, 180D, and 240D strength classes (crushing load in kN per metre length at 0.25 mm crack width).

    US standard: ASTM C76 (reinforced concrete culvert, storm drain, and sewer pipe), Class I to Class V by D-load (D0.01 crack load per metre diameter). Standard diameters: DN 150 to DN 3000 mm; pipe lengths 1.0 to 2.5 m standard (jacking pipes up to 3.0 m). Concrete class: C40/50 minimum per EN 1916 for durability in aggressive soils; sulphate-resisting cement (SRPC) for Class AC3 to AC5 ground aggressivity; high alumina cement (HAC) historical use, now deprecated in UK.

    Jacking pipes (pipe jacking, microtunnelling, thrust boring) are precast concrete pipes designed for installation by hydraulic thrust from a jacking frame without open excavation. Jacking pipe requirements (BS EN 1916:2002 Class J, DWA-A 161 German standard): compressive strength greater than 60 MPa; end faces machined flat to 0.25 mm parallelism for uniform force distribution; joints with rubber sealing gaskets and wooden or HDPE packer rings to distribute jacking loads (up to 3,500 kN/m2 on face for long drives).

    Maximum jacking distances: DN 600 mm up to 500 m per drive; DN 1200 mm up to 200 to 300 m; intermediate jacking stations (IJS) inserted into the pipe string for longer drives to reduce skin friction (bentonite lubrication reduces friction coefficient from 0.1 to 0.15 to 0.01 to 0.05). Applications: trunk sewer installation under roads, railways, and rivers; culvert installation; utility crossings. UK market: approximately 15,000 m of pipe jacking per year; costs GBP 1,000 to 5,000 per linear metre depending on diameter, soil, and crossing complexity.

    Structural design and installation of precast concrete gravity pipes: bedding class determines required pipe strength. BS EN 1295-1 (Structural design of buried pipelines) and UK practice per TRRL Report 78 and CPDA guidance: Class B bedding (granular material 100 mm below pipe invert, haunching to 70 percent of diameter): bedding factor 1.9; Class A (concrete bed and surround, haunch to 120 degrees): bedding factor 2.6.

    Installation: excavation in stable ground to invert level; bedding layer compacted to 95 percent proctor density; pipe laid to line and level with laser or boning rods (max deviation 10 mm); joints pushed home with rubber gasket lubrication; jointing material: EPDM rubber ring (DN less than 900), profile seal or compression collar (DN greater than 900). Backfill: granular material (10 to 40 mm gravel) to 300 mm above crown, then selected fill in 150 mm compacted layers. UK Sewers for Adoption (7th edition) and Specification for Highway Works (SHW) specify concrete pipe installation requirements for adoptable assets.

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    Frequently asked questions

    What strength class of concrete pipe do I need?

    Concrete pipe strength class selection uses the modified bedding factor method: calculate design crushing load = installed external load (W, soil overburden + traffic) divided by bedding factor (Fm). Soil load: Marston's formula for trench condition; traffic surcharge per BS EN 1991-2 (HA, HB, or SV loading). Common results for UK adoptable sewers: DN 300 at 2.0 m cover under normal roads: Class 120D with Class B bedding typically sufficient; DN 600 at 3.0 m cover: Class 150D or 180D with Class B bedding; DN 1200 at 4.0 m cover: Class 180D or 240D with Class A bedding or concrete surround. Eurocode combination: BS EN 1295-1 with BS EN 1991-1-1 and Annex A provides the formal calculation basis. CPDA (Concrete Pipe and Precast Association) technical guidance and their pipe-sizing software provide simplified selection tables. Always check with the pipe manufacturer at tender stage for jacking pipes as each application requires specific thrust-face area calculation.

    How long do precast concrete pipes last?

    Design life of precast concrete pipes: BS EN 1916 specifies a 100-year design life when correctly designed, manufactured, and installed in ground conditions within the pipe's durability specification. Achieved service life: Victorian brick and concrete sewers from the 1850s to 1880s remain structurally functional in UK cities (150+ years), though many require relining for hydraulic upgrading or crack repair. Life-limiting factors: hydrogen sulphide attack in wastewater sewers (biogenic sulphuric acid corrosion, BAC) - microbiologically produced H2SO4 dissolves concrete at rates of 1 to 10 mm/year in severe conditions; requires sulphate-resistant or high-alumina protective lining; aggressive groundwater (pH less than 5.5, high sulphate greater than 3,000 mg/L, CO2 greater than 30 mg/L aggressive CO2) attacks concrete matrix; stray current corrosion of reinforcement in electrically active ground; structural loading overload (unexpected traffic surcharge, ground movement). Inspection: CCTV survey per WRc Manual of Sewer Condition Classification (MSCC5) grades structural and service condition; recommendations for immediate, short-term, or long-term maintenance or structural rehabilitation.

    What is the difference between jacking pipe and standard concrete pipe?

    Jacking pipes differ from standard installation concrete pipes in several critical ways: (1) End faces: jacking pipe ends are machined flat and parallel to 0.25 mm tolerance; standard pipes are cast-face only (less flat); the flat face is essential to distribute the jack thrust (up to 3,500 kN/m2) uniformly without local crushing; (2) Concrete strength: jacking pipes require greater than 60 MPa compressive strength; standard pipes may be as low as C40/50 (approximately 40 MPa characteristic); (3) Joint design: jacking pipe joints transmit compressive load through wooden or HDPE packer rings plus EPDM rubber water seal; standard pipe joints rely primarily on the rubber ring for water-tightness; (4) Handling: jacking pipes have steel lifting sockets; standard pipes have cast lifting holes; (5) Length: jacking pipes longer (up to 3.0 m vs 1.0 to 2.5 m standard) to minimise number of jacking thrusts; (6) Wall thickness: jacking pipes have greater wall thickness to resist jacking stress; (7) Internal surface: smooth internal finish for hydraulic efficiency and ease of CCTV inspection after installation. Standard pipes cannot be used as jacking pipes without structural recalculation and end-face modification.

    Are concrete pipes suitable for aggressive soils?

    Precast concrete pipes can be designed for aggressive ground conditions but require careful material specification: Ground aggressivity classification per BS 8500-1 (concrete specification): Class AC1 (pH 6.5 to 7.0, sulfate SO4 less than 500 mg/L soil or 200 mg/L groundwater) - Portland cement C40/50 adequate; Class AC3 (pH 4.5 to 5.5, SO4 500 to 3,000 mg/L) - sulfate-resisting Portland cement (SRPC, C3A less than 3.5 percent) or CEM II/B-V blended cement + FFA; Class AC4 and AC5 (pH less than 4.5, SO4 greater than 3,000 mg/L) - high sulfate resistance concrete with FFA or GGBS addition, minimum 360 kg/m3 cement equivalent, w/c ratio less than 0.45. Biogenic sulphuric acid corrosion in wastewater sewers: independent of soil aggressivity; generated internally by Acidithiobacillus thiooxidans bacteria on concrete crown above waterline; control by: epoxy lining (100 to 500 micron), PVC lining, calcium aluminate cement (HAC) concrete (resistant to pH greater than 2.5), or vitrified clay (no concrete exposed). Alternative materials for worst conditions: vitrified clay, HDPE, or GRP pipes where concrete durability cannot be guaranteed.

    Illustrative scenario · Highway and urban drainage infrastructure

    A composite drawn from typical projects in this category, not a single client engagement. Figures are indicative.

    Challenge
    A Highways England (now National Highways) major road upgrade in the Midlands required installation of 3.2 km of new trunk sewer and highway drainage beneath a motorway widening scheme. The pipe alignment included a 320 m crossing under the carriageway and 14 motorway service road crossings, all requiring trenchless installation to avoid disruption to live motorway traffic.
    Approach
    The contractor used pipe jacking with DN 900 Class 135D precast concrete jacking pipes (BS EN 1916:2002, Class J designation) for the main trunk crossing, with an intermediate jacking station (IJS) at 160 m to manage skin friction on the 320 m drive. Bentonite lubrication reduced jacking load from an estimated 3,800 kN to 1,200 kN. The 14 service road crossings used DN 600 Class 120D pipes installed by auger boring. All pipes were manufactured with SRPC cement for AC3 ground classification (sulphate 1,800 mg/L in groundwater).
    Outcome
    All crossings were installed without motorway closures. Jacking accuracy was within 15 mm of design line and level on the 320 m drive. Structural inspection post-installation via CCTV confirmed zero cracking. Ground settlement monitoring showed maximum surface settlement of 6 mm over the 320 m drive, within the 10 mm tolerance specified by the structural engineer. Programme was delivered 3 weeks ahead of the 18-week excavation-free constraint window.

    Questions to ask shortlisted providers

    5
    1. 01

      What is the design crushing load and bedding class for the pipe installation and what are the soil overburden and traffic load conditions?

      Pipe strength class selection (120D to 240D) uses the modified bedding factor method combining soil load (Marston formula) and traffic surcharge per BS EN 1991-2; incorrect selection risks structural failure under service loads.

    2. 02

      Is the installation conventional open-cut or trenchless (pipe jacking, microtunnelling, auger boring) and what is the required pipe specification for each method?

      Jacking pipes require machined end faces, greater than 60 MPa concrete, and jacking load capacity calculation per DWA-A 161; standard pipes cannot be substituted without structural assessment.

    3. 03

      What is the ground aggressivity classification (pH, sulphate concentration, stray current) and what cement class is specified?

      Aggressive soils (AC3 to AC5 per BS 8500-1) require sulphate-resisting cement or blended cement with low w/c ratio; specifying standard Portland cement in aggressive ground causes progressive concrete dissolution.

    4. 04

      What CCTV inspection and hydraulic performance testing regime is required at handover and for ongoing maintenance?

      Sewers for Adoption (7th edition) mandates CCTV inspection to MSCC5 standard and hydraulic testing at completion; EA environmental permits may require periodic CCTV inspection of critical sewer assets.

    5. 05

      What is the anticipated service life and are there provision for rehabilitation (lining) in the design?

      Concrete pipes designed for 100-year service life require adequate corrosion allowance and access for CIPP or spray lining rehabilitation; in wastewater sewers, H2S corrosion can reduce unprotected concrete crown life to 20 to 40 years.

    What drives cost in this category

    4
    Pipe diameter, strength class, and unit cost
    DN 300 Class 120D concrete pipes cost GBP 25 to 60 per metre supply-only; DN 900 Class 135D pipes cost GBP 120 to 250 per metre; jacking pipes carry 30 to 60% premium over standard pipes for machined ends and higher concrete strength.
    Installation method (open cut versus trenchless)
    Open-cut installation costs GBP 80 to 300 per metre in normal ground; pipe jacking costs GBP 1,000 to 5,000 per metre depending on diameter, soil, and crossing length; trenchless premium is justified by traffic disruption avoidance, particularly on major roads or rail crossings.
    Trenchless plant and equipment (microtunnel boring machine, jacking frame)
    Microtunnelling TBM mobilisation costs GBP 150,000 to 400,000; jacking frame and pit construction costs GBP 50,000 to 150,000 per drive; multiple crossings on a single programme amortise plant cost significantly.
    Specialist cement and durability provisions for aggressive ground
    SRPC concrete adds 5 to 15% to pipe unit cost versus standard Portland cement; epoxy or PVC lining for H2S protection in wastewater sewers adds GBP 20 to 80 per metre; avoiding lining and using standard concrete in H2S environments risks complete concrete loss within 20 to 40 years.

    Key regulations and standards

    4
    BS EN 1916:2002 Concrete Pipes and Fittings
    UK harmonised standard specifying strength classes, materials, dimensional tolerances, test methods, and marking for precast concrete pipes; compliance required for CE/UKCA marking; Class J designation for jacking pipes specifies additional requirements for end face flatness and concrete strength.
    Sewers for Adoption (7th Edition, Water UK)
    Specifies materials, design, installation, and testing standards for sewer infrastructure to be adopted by sewerage undertakers; Section 104 agreements under WIA 1991 require compliance with SfA; non-compliant materials or installation methods result in refusal of adoption.
    Specification for Highway Works (MCHW Volume 1, Series 500)
    National Highways specification for drainage pipe installation under trunk roads and motorways; specifies bedding class, backfill material gradation, compaction requirements, and testing; contractors must comply with SHW for National Highways-funded schemes.
    BS 8500-1:2015 Concrete Specification and Ground Aggressivity
    Defines ground aggressivity classes (AC1 to AC5) based on soil pH, sulphate concentration, and groundwater chemistry; specifies minimum concrete mix design requirements for each class including cement type, minimum cement content, and maximum water-cement ratio.

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