W&B Civil Engineering supported Bethell on a major United Utilities infrastructure scheme involving the installation of approximately 4.2km of new 600mm and 900mm diameter sewer pipelines, along with a series of associated manholes and access chambers.

The works were delivered across challenging ground conditions and within live environments, requiring careful planning, coordination, and adherence to strict health, safety and environmental standards. W&B’s scope included trench excavation, pipe laying, bedding and surround, as well as the construction of precast and in-situ chambers to tie into the existing network.

This upgrade formed a critical part of United Utilities’ wider investment programme, designed to significantly increase capacity within the local sewer network. By enhancing flow efficiency and reducing system overload during periods of heavy rainfall, the scheme plays a key role in mitigating flood risk for surrounding communities and improving long-term network resilience.

W&B’s experienced drainage teams ensured the works were delivered efficiently and to a high standard, maintaining programme while minimising disruption to the local area.

On this scheme, W&B Civil Engineering delivered a comprehensive drainage and environmental package as part of United Utilities’ AMP7 improvement programme.

Our works included the installation of overflow and headwall pipework, along with the construction of the inlet chamber and associated pipework to control and manage incoming flows. We also delivered the outlet connections and wider site pipework, ensuring full integration with the existing network, alongside the installation of multiple chambers to support access, maintenance, and system performance.

A key element of the project was the construction of the reed bed system, designed to provide a natural, sustainable method of water treatment and flow attenuation. This involved careful formation of the bed, installation of liners, placement of specialist media, and planting, all delivered in line with environmental and ecological requirements.

Working within a sensitive setting, W&B ensured strict compliance with environmental standards while maintaining programme and quality, contributing to a scheme that enhances network performance and supports long-term sustainable water management.

W&B Civil Engineering’s deep drainage teams delivered key infrastructure works in Wigan as part of United Utilities’ AMP7 improvement programme.

Our scope centred around the installation of a 1200mm diameter gravity main, requiring deep excavations, robust trench support systems, and precise pipe laying to ensure long-term performance and alignment with the existing network. A critical element of the scheme was the construction of a 4m diameter weir chamber on the live line, carefully sequenced to maintain flows and minimise disruption while integrating seamlessly into the operational system.

In addition to the primary works, W&B installed a range of associated pipework, including a rising main and service ducting, supporting both current operations and future network requirements. All works were carried out in challenging ground conditions, with a strong focus on safety, quality, and programme delivery.

The project plays an important role in increasing network capacity and resilience in the area, helping to manage flows more effectively and reduce the risk of flooding during periods of heavy rainfall.

As part of United Utilities ongoing maintenance & repair programme, we upgraded the existing road drainage to alleviate flood risk 

Excavation and installation of a large cofferdam including the installation of associated pipework into the existing shaft at Ennerdale water.

Part of the United Utilities AMP initiative, we installed all of the gravity mains and pressurised pipework.

The objective was to build, from scratch, a new sewerage works for the village of Torver in the Lake District. Works included large septic tanks and all associate pipes and chambers.

These works required an 8-metre-deep installation of a 3-metre diameter caisson shaft, the scope of the job included all associated inlet and outlet pipework for the water treatment works.

Installation of pipe work for a new underground system; to be used in conjunction with the existing gravity mains from Stocks Reservoir.

Large diameter ductile iron flanged steel pipe work, valves & chambers were required to bring this scheme into operation.