The TBMs will be positioned 9m below road level. Tunnelling will begin at Nehru Park, near Pachaiyappa’s College, and proceed towards Egmore. The second machine will be launched after a month following the launch of the first.
A total of 11 TBMs are to be used for the construction of the city’s underground metro network. Larsen and Toubro are the contractors for the CMRL project.
