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Donegan Civil Engineering

Failsworth WwTW

By: Valentine Donegan

Published: November 14, 2025

Failsworth WwTW

Client: LiMA for United Utilities

Value: £550,000

Project Description / Main Operations

As part of a new Waste Water Treatment centre in Failsworth, Greater Manchester, there was a requirement to cross Green Lane, opposite the site, with several ductile iron pipes ranging from 1000mm to 250mm. Additionally, 3 no. 150mm ducts for telemetry were also required.

To allow this, 2 no 1500mm pipe jacks were required to go under Green Lane at a depth of 7m and works were completed in tight working conditions.

Additionally also on site a 6m dia 6m deep shaft was also constructed.

Scope and method:

Excavation of 2 No cofferdams; 7 x 6 x 7m deep & 6 x 5 x 7m deep
Construction of 2 x 15m of 1500mm diameter pipejacked tunnel using a pneumatic equipment
Installation of approx. 60m of ductile iron pipework ranging from 1000mm to 250mm including duckfoot bends, slow bends, etc within said pipejack pipes
Installation of 45m of 150mm ducting Sealing works to all ducting and pipework (grout)
Reinstatement of working areas, etc
Construction of a 6m dia x 6m deep shaft.

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