In order to advancing the tunneling main works contract for the Teddington Direct River Abstraction in west London,Thames Water has launched a tender.<\/p>\n
A recycled water conveyance tunnel from Mogden Sewage Treatment Works to Teddington, is content of the design, build, test and commission tender. With the aim of connecting a new tertiary treatment plant in Mogden STW to the proposed outfall on the bank of the River Thames upstream of Teddington Weir, a new almost 4.2km long tunnelled conveyance route approximately 3.5m internal diameter would be driven by a TBM and constructed, whereas the tunnel would have four shafts.<\/p>\n
For linking the River Thames to the existing Thames Lee Tunnel for water abstraction, it also includes a smaller diameter tunnel, up to 2.2m internal diameter. This tunnel is due to be installed by pipe jacking.<\/p>\n
With a value of \u00a3242m, the NEC4 Engineering and Construction Contract comprises two stages, while stage One is going to provide early contractor involvement during Thames Water\u2019s planning and development consent process.<\/p>\n
In case of issuing a notice to proceed with Stage Two, delivery and construction, the contract is expected to be concluded in October next year. A water available for use target has been set for March 2033.<\/p>\n
The award criteria are weighted 70% on quality and 30% on price.<\/p>\n
The enquiry deadline is June 20, 2025 and the deadline for requests to participate is July 7, 2025.<\/p>\n