The Shapinsay subsea pipeline project in the Orkney Islands represents a critical infrastructure upgrade aimed at providing a reliable, long-term water supply to one of Scotland’s remote island communities.
Delivered for Scottish Water, the scheme involved installing a subsea pipeline between mainland Orkney and the island of Shapinsay, ensuring a secure and improved water source following declining water quality on the island.
At just under 2km in length, the crossing is believed to be the longest land-to-land, subsea, directionally drilled utility pipeline in the UK.
Stockton Group was brought in use our drilling expertise to work through difficult geological conditions, while meeting the challenges of working in a remote environment.
The River Corrib crossing in Galway forms a critical part of the infrastructure works associated with Galway Wind Park, Ireland’s largest onshore wind farm, which produces enough renewable energy to power approximately 140,000 Irish homes annually.
Located within a highly sensitive environmental area and adjacent to structures of national importance, the project required a carefully engineered trenchless solution to ensure zero disruption to both the surrounding environment and nearby heritage assets. Conventional open-cut methods were not viable due to environmental restrictions, the need to protect the river ecosystem, and the risk of structural impact to nearby heritage sites.
Stockton Group was engaged by GMC to deliver a 350m Horizontal Directional Drilling (HDD) solution beneath the River Corrib. Our role was to design and execute a fully controlled trenchless crossing that would eliminate risk to the environment, maintain structural integrity of surrounding assets, and ensure precise installation over a long-distance bore.
The Morlais project, delivered by Menter Môn, is a pioneering tidal stream initiative off the coast of Holy Island, Anglesey, designed to generate low-carbon electricity while supporting local communities and economic growth. Spanning a 35 km² seabed area, the site has the potential to produce up to 240 megawatts of renewable energy, positioning Anglesey (Ynys Môn) as a key player in the UK’s energy transition.
A critical subsea infrastructure was required to connect offshore tidal devices to the onshore grid, which presented a complex landfall challenge in a sensitive coastal environment. Conventional trenching methods were not viable due to environmental constraints, coastal conditions, and the need to minimise disruption. A fully trenchless approach was required.
Stockton Group was engaged by Menter Môn to deliver 5 x 550m Horizontal Directional Drilling (HDD) landfalls and, as Principal Contractor, to take full responsibility for planning, managing, monitoring, and coordinating the entire construction phase.
Robin Rigg was Scotland’s first offshore wind farm, comprising 60 turbines with a total generating capacity of 180MW. The development required two 132kV export cables to connect the offshore substations to the onshore electricity distribution network near Workington, Cumbria.
Stockton Group was appointed by E.ON Climate & Renewables UK to design and deliver an 800m Horizontal Directional Drilling (HDD) landfall installation beneath environmentally sensitive coastal and railway infrastructure, forming part of the critical grid connection works.
To support the expansion of facilities at Allerton Grange School in Leeds, a new extension and associated car park infrastructure was commissioned as part of a wider development led by Tilbury Douglas.
Stockton Group was appointed to deliver a range of civils works, undertaking a comprehensive scope of works including substructures, drainage, reinforced concrete, and full construction of the car park. The project required a coordinated, multi-disciplinary approach to ensure safe, compliant, and timely delivery within a live educational environment.
To support the expansion of facilities at Allerton Grange School in Leeds, a new extension and associated car park infrastructure was commissioned as part of a wider development led by Tilbury Douglas.
Stockton Group was appointed to deliver a range of civils works, undertaking a comprehensive scope of works including substructures, drainage, reinforced concrete, and full construction of the car park. The project required a coordinated, multi-disciplinary approach to ensure safe, compliant, and timely delivery within a live educational environment.
To support the redevelopment of hospitality and external areas at the southern end of York Racecourse, Lindum Group commissioned a comprehensive civils works package ahead of the 2024 race season
Stockton Group was appointed to deliver the works, providing the substructure, reinforced concrete works, drainage infrastructure, service ducting, and hard landscaping. The project demanded precise sequencing and forward planning to accommodate tight schedule constraints and high volumes of concurrent site activity.
The Westmoor Reservoir project covers the delivery of reservoir improvement works near Langport, Somerset, which was completed in November 2025. Work was undertaken to ensure the safe and continued operation of the reservoir, keeping the wider water level management system efficient and guaranteeing protection of local communities and downstream towns.
Stockton Group was brought in help with flood storage in the West Moor and South Moor reservoirs, collectively known as Westmoor. As part of the project, Stockton delivered a 220m trenchless river crossing, using Direct Pipe®, to form a 1400mm I.D. siphon below the River Parrett, to replace the Midelney Siphon.
The Beatrice Offshore Windfarm Ltd (BOWL) project is one of the largest private investments ever made in Scottish infrastructure and produces 584 megawatts from 84 turbines situated in the outer Moray Firth. It powers approximately 450,000 homes at a cost of £2.6 billion to its investors SSE, Copenhagen Infrastructure Partners and Red Rock Power.
Stockton Group were brought in to deliver 2 x 450m x 48” Direct Pipe© installations for high-velocity cables in relation to the Beatrice Offshore Windfarm.
The Tolmount gas field is a natural gas reservoir and production facility located in the UK sector of the southern North Sea, approximately 36 km east of Flamborough Head, Yorkshire. The Easington Gas Terminal is a crucial onshore processing facility that receives, processes, and exports natural gas from North Sea fields including Tolmount.
Stockton Group was contracted by energy and offshore engineering leader Saipem to carry out the onshore and intertidal works for the Tolmount Area Development Project, with a gas pipeline installation from the offshore field to the tie-in point within the Easington Gas Terminal.
