Bachy Soletanche has been appointed to United Utilities’ £205 million reservoir works framework, which is split across two lots. Bachy Soletanche will deliver advanced ground engineering services under Lot 2 – Specialist Ground Improvements, valued at £125 million, as part of this long-term investment spanning AMP8 (2025–2030) and AMP9 (2030–2035).
Following a competitive procurement process, United Utilities selected eight partners across the two lots. Bachy Soletanche was appointed to Lot 2 with the second highest score overall, reflecting its technical expertise and proven capability in delivering complex geotechnical solutions.
As principal contractor, Bachy Soletanche will lead the delivery of a broad scope, including diaphragm walls, secant piling, grouting, ground anchors, and associated civil engineering works.
Shaun Davison, Bachy Soletanche’s Divisional Director – North, commented:
“We’re proud to support this major investment in the UK’s reservoir infrastructure. By applying our ground engineering expertise, we’re helping deliver sustainable solutions that protect vital water resources across the North–West for future generations. Our experience on schemes like Marchlyn Bach, Aled Isaf and Lower Carno positions us strongly for upcoming projects.”
Jane Simpson, Commercial Engineering and Capital Delivery Director for United Utilities, added:
“Our reservoirs are critical for keeping customers’ taps flowing across the North–West as well as being iconic sites that many people enjoy visiting. The eight partners we have chosen will bring great expertise to help ensure we can maintain these reservoirs and provide our customers with the great quality drinking water they expect.”
The framework spans AMP8 and AMP9 (Asset Management Periods 8 and 9), Ofwat’s regulatory cycles that set investment priorities and performance targets for water companies. As part of this, United Utilities will invest £13 billion during AMP8 alone to upgrade water and wastewater infrastructure, ensuring resilience and sustainability for decades to come.
