Tier One team to deliver £3bn water infrastructure


A group of Tier One companies have been appointed by a key water supplier to deliver a series of major infrastructure schemes worth nearly £3 billion. 

South West Water (SWW) has revealed which industry partners will support its new capital investment programme for the region, running from 2025 to 2030. 


BAM Nuttall, Clancy and Mott McDonald Bentley have been appointed by SWW as main construction partners for projects in the west of the region. 

While Tilbury Douglas, MWH Treatment and Network Plus Envolve will take up similar duties in the east. 


Stantec, Long O’Donnell and Turner & Townsend (T&T) will provide project management services to the contractors. 

While Aecom, ChandlersKBS and T&T too have been appointed to ensure best value for money. 

Arcadis, Pell Frischmann, Stantec, WSP and Aecom will lead on design. 

Several local specialist engineering firms will also be appointed in the next few months to support workloads across the whole region. 


New treatment works and reservoirs, reducing the use of storm overflows, and maintaining the region’s bathing waters and water supply are some of the projects in the £2.8 billion investment programme. 

The five-year contract will boost investment in the local economy and create around 2,000 new jobs, the water supplier said.  

“These appointments will help turn our plan – the right one for our region – into reality,” said Susan Davy, South West Water chief executive.  

“We’re already tackling the challenges we face, but with greater investment we can go further and faster.  

“We look forward to working with our partners over the years to come as we deliver the projects to meet the needs of the greater South West.” 

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