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Victoria Embankment (2024)

Delivery of complex civils to intercept combined sewer overflows and divert into the Thames Tideway Tunnel

Anglian Water's Strategic Pipeline Alliance: Norwich to Wymondham Pipeline (2023)

Anglian Water’s Strategic Pipeline Alliance (SPA) is delivering one of the largest infrastructure projects in AMP7; a new water main network, hundreds of kilometres long, which will allow Anglian Water to move water around the region from areas of surplus to areas of deficit, future-proofing supply to customers. The network is being constructed in 11 […]

Arklow Long Sea Outfall (2023)

September 2022 saw the successful completion of a new kilometre outfall pipeline in Arklow, Ireland. The lack of wastewater treatment facilities in Arklow resulted in untreated wastewater being discharged directly to the Avoca River. The design and construction of a new wastewater treatment plant and long sea outfall was required to improve the water quality […]

Barn Elms CSO Connection Tunnel (2023)

The Thames Tideway Tunnel Project is a 25 km (16 mi) combined sewer under construction under the tidal section of the River Thames as it runs through London. It will significantly increase the capacity of London’s sewerage system (large sections of which were built in the 19th century), and be able to capture, store and […]

Durleigh WTC (2023)

In 2019, Wessex Water launched a £51 million project to upgrade the Durleigh Water Treatment Centre (WTC) in Somerset, which had reached the end of its operational life. This project was crucial in maintaining the delivery of high-quality drinking water to a population of 44,500 and was part of the company’s long-term water supply strategy […]

Knostrop STW (2023)

Knostrop Sewage Treatment Works (STW) is Yorkshire Water’s largest wastewater treatment site, serving a population equivalent of 990,000 and a full flow to treatment (FFT) of 5600 l/s. The WINEP Programme requires Yorkshire Water (YW) to achieve compliance with the new Total Phosphorus and Total Iron permit levels at 80 wastewater treatment works, including Knostrop. […]

Lluest Wen Reservoir (2023)

Located near Maerdy in South Wales, Lluest Wen Reservoir is a Category A Large Raised Reservoir as defined by the Reservoirs Act 1975. The reservoir is impounded by a 200m long, 25m high earth embankment dam across the Rhondda Fach River and currently impounds 1.07Mm3 of water. Construction of the reservoir was originally completed in […]

Potters Way Sewer Rehabilitation (2023)

Potters Way, located in the Fengate area of Peterborough, is a recent housing development next to the A1139. The development was built on the grounds of the former Fengate Water Recycling Centre (WRC) which closed in 1988 following the construction of the Flag Fen WRC. In early December 2018, Anglian Water became aware of the […]

Sherston S101a - First Time Sewerage Scheme (2023)

Section 101a of the Water Industry Act requires that sewerage providers deliver and fund first time sewerage (FTS) schemes where the current drainage for two or more properties is unsatisfactory and where a public solution is viable. Unsatisfactory drainage includes situations where environmental or amenity problems caused by uncontrolled discharges from septic tanks or cess […]

Anglian Water’s Strategic Pipeline Alliance (2022)

While the east of England is attracting people like no other part of the UK, it is also the driest area of the country – a threat to its success that Anglian Water is determined to overcome. The Strategic Pipeline Alliance (SPA) comprises, Farrans, Mott MacDonald Bentley, Costain and Jacobs, who are delivering one of […]

North London Heat & Power Sewer Diversion (2022)

The North London Heat & Power Project is a ten-year, £1.2 billion programme to replace the current Edmonton energy from waste facility. It is being constructed on behalf of North London Waste Authority at the Edmonton EcoPark and includes a world-class Energy Recovery Facility (ERF), to generate energy from waste in the form of heat […]

Roundhay Park Lane CSO (2022)

The project is located within the residential area of Roundhay in north Leeds, less than 500m from the city’s largest park. The immediate area’s combined system serves in excess of 1900 residential properties and ultimately feeds into the wider Leeds city combined system via Roundhay Park Lane Combined Sewer Overflow (CSO). Hydraulic and water quality […]

Wing WTW (2022)

Wing WTW is part of the Anglian Water network, located in the county of Rutland in the East Midlands. The treatment site originally opened in 1977 and was then expanded to include a granular activated carbon (GAC) system in 1989. Morcott WTW, which was commissioned in 2010, is adjacent to Wing with a combined area […]

Ynys-y-Fro Lower Reservoir (2022)

The Ynys-y-Fro Reservoir system is situated 1km north-east of High Cross, Newport. The system comprises two reservoirs in cascade: an upper ‘subsiding’ reservoir and a lower ‘old pond’ reservoir. The upper reservoir is immediately upstream of the lower reservoir. The lower reservoir was constructed as an earth embankment dam and was built for the supply […]

Bedersaig WTW (2021)

The small villages of Huisinis and Gobhaig on the Isle of Harris each consist of a few households, but in the summer months the local beach is inundated with campers and campervans. This means that the water demand fluctuates dramatically through the year. The two villages were served by single, basic supplies: Huisinis by a […]

Tideway Central - Junctions (2021)

The Tideway Tunnel is a new 25km long combined sewage storage and transfer system that will help protect the ecology of the River Thames by tackling the problem of overflows from London’s ageing sewers. The Central Section consists of eight work sites each incorporating a drop shaft, as well as two tunnel drives. Of the […]

Tideway Central - Main Tunnel Secondary Lining (2021)

In the heart of London, the largest project in the UK water industry is underway. Tideway is a new combined storage transfer system, commissioned to provide London’s sewage network with additional capacity and prevent pollution of the River Thames. The colossal scheme consists of a 25km TBM bored tunnel with numerous shafts, associated outfalls and […]

Hull WwTW (2020)

Hull WwTW located at Saltend, east of Hull, provides sewage treatment for a population equivalent of over 1 million people, covering an area from the west of Hull to Hedon in the east. The existing treatment works was built over 20 years ago and required some specific upgrading and refurbishment. The primary drivers for the […]

Invercannie WTW (2020)

Located to the West of the town of Banchory, Aberdeenshire, Scottish Water’s Invercannie WTW is currently a 49 Ml/d water treatment works which serves the local population as well as providing raw and treated water to Mannofield WTW in Aberdeen via two 28km aqueducts (one laid in 1866 and the other in 1924). The treatment […]

Marston Water Recycling Centre (2020)

Marston Water Recycling Centre (WRC), near Grantham, serves a population of approximately 63,500 from Marston and the surrounding areas, with a capacity to treat up to 392 l/s of wastewater. The projected population growth in the area is approximately 76,000 until 2031, with the significant proportion of this growth estimated to occur by 2022. Following […]

Northumberland & Halfway SPS (2020)

Llanelli Wastewater Treatment Works (WwTW) in Llanelli, South Wales, serves the catchment’s 60,000 inhabitants and discharges treated effluent into the Loughor Estuary. The estuary is not only ecologically sensitive, but also a critical natural asset to the local community and to the wider South Wales region. It is a natural capital asset, home to commercial […]

Re–Rounder (2020)

After the implementation of the transfer of private drainage to Wessex Water in 2011, it became imperative that it was necessary to focus more attention on trenchless alternatives for repair of small diameter sewers. Wessex Water’s overall cumulative volume of public sewers doubled overnight from 17,000km to 34,000km, and the majority of that transferred stock […]

Tideway Central - Falconbrook Pumping Station (2020)

Falconbrook Pumping station (FALPS), located in the London Borough of Wandsworth, is the most westerly site on the Thames Tideway Central Section. FALPS is an active pumping station, discharging approximately 700,000m3 of untreated sewage directly into the River Thames each year via six storm pumps. The current station has a combined discharge volume rate of […]

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