29.10.2021 /

Main Tunnel B Shutter System - Launch & First Block Completed

Thames Tideway Tunnel
Main Tunnel B Shutter System - Launch & First Block Completed

The first secondary lining block of the main tunnel connection tunnel at the Carnwath Road Riverside site was successfully completed on the 13 October 2021.


KERN designed and supplied the Ø7.3m fullround shutter system which has the possibility to carry out concrete castings with segmental or sprayed concrete lining.

The length can be changed depending on the primary lining conditions and a special system has been implemented to allow the works around the tight radius of the connection tunnel.

A full surface pre-assembly was undertaken at the site and the system was then transported inside the shed and lifted down the main shaft.


We would like to thank the team from the BAM Nuttall, Morgan Sindall, Balfour Beatty joint venture who are delivering the west section of the Thames Tideway Tunnel and everyone involved at KERN for the achievement of this milestone.







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