Liverpool Wastewater Treatment Works

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Liverpool Wastewater Treatment Works (WwTW) had problems with the existing, second stage treatment Baff plant blocking up, which led to premature discharges from the works to the River Mersey. A more robust treatment process was required and it was decided that a sequencing batch reactor (SBR) would be built on two levels within Wellington Dock adjacent to the existing works.

GCA JV, a joint venture between Galliford Try, Costain and Atkins, was chosen by United Utilities (UU) to carry out the upgrade of Liverpool WwTW.

UU recognised that to successfully deliver this complex project, a different approach to 'design and build' was required and a ‘One Team One Aim’ initiative was developed. The team was a special partnership of client, contractor and supply chain, working together to ensure the successful design and build of the new works.

All the team were located at the Liverpool site to ensure close collaboration, ownership of the problems and establish a commitment that the team would ‘fix’ Liverpool together. A successful tool for the team was using BIM, which was relatively new in the water industry at the start of the project (2013), but was recognised by the team to be invaluable in ensuring the success of this and future projects in AMP6. They therefore pioneered its use, ensuring the Liverpool project was at the forefront of BIM technology, setting the standards for AMP6.

Following the successful performance of the Liverpool team, UU intend to adopt the collaborative one team ethos to spread the ‘Liverpool magic’ across their upcoming AMP6 major projects.

Key facts


United Utilities


Awarded Capital Project Management Award, 2016

Key Facts:
United Utilities largest project within Amp 5





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