Thames Water Network Alliance

Description of Works

Murphy was one of three contractors in an Alliance with Thames Water to deliver the benefits identified by OFWAT/Thames in the AMP3 period, and extended into AMP4.

The Alliance agreements were for a minimum period of three years with extensions. Murphy was responsible for delivering best value through effective use of resources and the supply chain, and the management of projects from “cradle to grave”.

Murphy working closely with Thames Water and their Design Consultant provided the asset planning, programming, feasibility design, procurement, construction, commission, and liaison with third parties for delivery of the following:

• New sewers for customers, pumping stations, rising mains, new sewer
• Remove properties from the risk of flooding – increase size of sewers, tunnelling and open cut excavation, tank sewers, review operational arrangements, install individual flood protection devices
• Pumping Station serviceability – refurbish and replace existing pumping station, both in waste and water operations
• Sewer Rehabilitation – reduce the risk of collapses of sewers by relining existing sewers
• CCTV Condition Surveys of Sewers
• Combined Sewer Outfalls – reduce the number of outfalls and improve the standard of the effluent discharging to water courses
• Water supply to new customers – new pipelines
• Maintain water distribution, replacing and relining existing water mains
• Reduce water leakage – install metering, monitor and control flows, i.e. district metering and PRVs
• Renewal of existing water mains
• Improving water supply/demand

Murphy ensured that in providing assets a simple, robust and functional solution which considered the balance between construction and operational cost, safety in construction, operation and decommissioning. We also ensured that the design of the asset was similar across the region, and was consistent to all appropriate environmental requirements.

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