On 04/09/20 the last giant TBM set to create the final 5.5km stretch of London’s new super sewer has been lowered below ground. The TBM, Selina, was delivered to Tideway’s Chambers Wharf site in Bermondsey from Germany in July and following completion of the specialist lifting system, the team successfully lowered the machine to the bottom of the shaft over a period of 12 hours.

Selina’s front shield and cutterhead weighs almost 800 t and when the accompanying six gantries are lowered, the TBM will weigh almost 1500 t and stretch 111 m. The machine will now be readied to begin her underground journey towards Abbey Mills Pumping Station. Digging more than 60m below the ground, Selina will tunnel on a slight decline toward the pumping station in east London. For archive information please click here and uk/54 and also find further information by visiting https://www.tideway.london/. 37/20.