London Bridge Station

Station work at London Bridge by Costain/Taylor Woodrow involves excavation and construction of the new JLE station complex as well as a new south bound platform tunnel to ease congestion on the existing Northern Line station. Access to the underground works started early 1994 with the excavation of the 11.35 m i.d. x 33 m deep temporary access shaft at the main Redcross Way construciton site. After sinking the top 10 m of the shaft as a cassion through the upper water bearing strata, it was taken to full depth through the London Clay using NATM.