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Tuesday, 12 October 2021 05:01

London super sewer - Tideway completes 1000th ring on Greenwich Connection Tunnel

The 1000th ring has been installed on the Greenwich Connection Tunnel – part of the new super sewer for London - by Tideway’s Tunnel Boring Machine (TBM) Annie.

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The TBM is now 1.5km into the journey to Chambers Wharf in Bermondsey, where the Greenwich Connection Tunnel will meet the main super sewer.

Greenwich Project Manager, Darren Kehoe, said:

“We are now approaching Earl Pumping Station, where the teeth on Annie’s cutterhead will be changed before continuing on her journey to Chambers Wharf.”

The giant tunnelling machine building the 4.5km Greenwich Connecton Tunnel is named after Annie Scott Dill Russell, the first female scientist to work at the Greenwich Observatory.

The machine was initially assembled at a site by the O2 Arena having been shipped from Germany before being dismantled and transported via local roads.

TBM Annie is well over 100m long and weighs in at around 960 tonnes.

With the marine infrastructure in place at Phoenix Wharf, the northern half of the site in Greenwich, much of the excavated spoil from the tunnel is being removed from site by barge – in line with Tideway’s commitment to move material by river where possible.

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