Mumbai Metro Rail Corporation (MMRC) has managed to complete 50 per cent tunnelling work for the Metro-3 project, which was initiated in November 2017. Of the 56 km-long (up and down) Metro-3 (Colaba-Bandra-Seepz) corridor, MMRC has completed 28 km tunnel construction.
The earliest breakthrough was achieved in September 2018 after MMRC launched the first tunnel boring machine (TBM) – Krishna 1 – at Naya Nagar in Mahim in September 2017. Since then, the MMRC has placed 17 TBMs which are working in full pace to tunnel the city.
MMRC Managing Director Ashwini Bhide informed that the breakthroughs in the tunnel construction work were achieved with the help of technical experts. The tunnels for Metro-3 were constructed under heritage buildings and residential areas.
Bhide further informed that this is only one part of the project while the work to construct the underground stations is in progress. MMRC is expecting to conclude the project as scheduled. According to the officials, 80 per cent of the tunnel construction will be completed by March 2020.
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After the first breakthrough, 12 more of the same have been achieved in several mapped areas including MIDC, Domestic Airport T1, Dadar, Worli, Vidhan Bhavan and more. The MMRC is working towards the next 19 breakthroughs of tunnel construction work for 33.5km-long Metro-3 line.
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