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Preston Unsatisfactory Intermitten Discharge (UID) Scheme

Project data

Location: Preston, United Kingdom

Construction of 13 large diameter shafts

Installation of 4.5km of tunnels, 9km of rising main, screens chamber, pumping station and outfall to stop wastewater flowing into the River Ribble during heavy storms


To form a concrete liner in a shaft of 25.80m in diameter and 36m deep

Curved and straight formwork required plus access to/from surface to bottom of shaft


KMI Water

Customer's benefit

Close collaboration and teamwork with PERI has enabled the project to run smoothly 


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Simon Shiel
Project Manager

"Teamwork has been central to the success of this challenging  project. PERI's expertise and invaluable product knowledge has meant that from design to construction has gone without a hitch."

PERI solution

A variety of systems was used to construct the terminal pumping station