Mumbai Metro-3: First TBM machine starts excavating in Nayanagar shaft

The TBM machine will excavate and build the 2484 m long down-line tunnel towards Dadar Station

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Mumbai’s most controversial project Metro-3 (Colaba- Bandra- SEEPZ) which is looked after Mumbai Metro Rail Corporation Ltd. (MMRCL), began excavation at the Nayanagar shaft in Mahim on Friday using a giant tunnel boring machine (TBM).

Read more - Exclusive Interview With Ashwini Bhide On The Mumbai Metro Project

Excavation will take a year

On Friday, a TBM machine was lowered using a 135-tonne heavy-duty gantry crane. According to officials, until 2:00 pm, the machine moved 1 km and slowly and steadily, a 2.5 km tunnel from Nayanagar to Dadar will take a year to complete. Approximately, the TBM will bore 10 meters a day.


In total, 17 TBM machines will be imported to Mumbai for 33.5 km tunnel project. For now, five machines have been brought to Mumbai out of which two machines have been lowered down in the Nayanagar shaft for the excavation work. Soon, other TBM machines will be lowered down at Azad Maidan and Vidya Nagar,” Ashwini Bhide, Director, MMRCL.

Despite protests against Metro-3 line, and petitions filed at Bombay High Court, MMRCL did not stop or stalled the work. The MMRCL is aiming and planning to complete Metro-3 line by 2021.

Read more- Mahim-Dadar Residents Protest Against Metro-3 Construction  

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