United Utilities set to tender £1bn contract in first for UK water industry

Original Haweswater Aquaduct under construction

United Utilities, the Warrington-based water and wastewater company, has launched a ground-breaking process to oversee the construction of new infrastructure to provide water for the Greater Manchester region.

Estimated at £1bn, it will be the largest infrastructure project undertaken by the organisation since privatisation in 1989.

It has issued a periodic indicative notice (PIN) as it looks to start the tender process for the Haweswater Aqueduct Resilience Programme (HARP), under a new contract model, after receiving formal consent from water regulator Ofwat.

It is the first time that the Direct Procurement for Customers model has been used in the UK water sector, following three years of planning and commercial development by United Utilities, including extensive engagement with the market and regulator to formalise the new approach.

The original aqueduct was completed in the 1950s to increase supplies of water into Manchester and the Pennines region from the Lake District. The project will see the replacement of six tunnel sections along the 80-mile aqueduct route, ensuring the resilience of the asset for decades to come.

For such a large-scale project, effective and efficient procurement and delivery have always been key considerations and, having worked closely with Ofwat in developing the detail of the DPC model, United Utilities concluded that this approach would have the potential to offer the best value for customers.

Neil Gillespie, director of strategic programmes at United Utilities, explained the significance of the move: “A project of this scale will always be challenging from a technical and planning perspective, but we have also had to start from scratch to develop the commercial framework for the procurement model.

“We are seeking to appoint a Competitively Appointed Provider (CAP) to design, build and fund six replacement tunnels sections of the Haweswater Aqueduct and maintain it for a period of 25 years post-construction.”

“We have put a lot of effort into engaging the market over the last three years, hosting a number of events to test our thinking and take on board feedback to help us to refine the DPC model. This has also given potential bidders early insight into what the winning CAP will be responsible for and this process has generated considerable interest from investors and construction companies.”

Keith Mason, senior director, future assets and resources at Ofwat, said: “Direct procurement for customers has, through competition, the potential to benefit customers in England and Wales in delivering the largest and most complex water and wastewater assets at a lower cost, while allowing new providers to introduce new ideas. We welcome the HARP project. It is a pathfinder being the first project to be procured under our DPC process which we expect will become a model for future infrastructure delivery.”

While the commercial framework was being developed, considerable preparatory work was undertaken to support the design process.

The biggest risk for a project of this nature is the tunnelling work and United Utilities carried out extensive ground investigations to provide insight into the anticipated ground conditions along the proposed route for the replacement tunnels.

This process involved numerous boreholes and extensive geophysical surveys. United Utilities also partnered with the British Geological Survey to generate a 3D ground model to allow prospective bidders to understand the ground conditions.

At the same time, United Utilities’ largest ever stakeholder engagement programme was carried out to help develop the best solution.

The team has consulted with local residents in the vicinity of the proposed works, planning authorities, highways agencies, environmental bodies and many more. The consultation had to be agile enough to cope with the COVID pandemic, and the team developed a virtual exhibition which allowed people to access all of the information about the project and ask questions of the United Utilities team remotely. A record number of people took part in the consultation, with more than 70,000 virtual visits to the exhibition and 2,000 pieces of feedback.

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