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Chennai (Metro Rail News): On 21 July, Mr Udhayanidhi Stalin, Youth Welfare and Sports Development Minister launched the Tunnel Boring Machine (TBM) Bhavani on Royapettah-R.K. Salai Section of Chennai Metro’s 45.4 km long Line 3.
![Chennai Metro: TBM Bhavani Begins Tunneling on Royapettah - R.K. Salai Section of Line 3 1 1721563645954](https://www.metrorailnews.in/wp-content/uploads/2024/07/1721563645954-1024x727.jpg)
TBM Bhavani’s Assignment
Tunnel Boring Machine (TBM) Bhavani will construct an underground tunnel which will have a length of about 910 m from Royapettah to R.K. Salai. The machine is likely to take 7 months to complete its drive.
Apart from TBM Bhavni CMRL will deploy three more TBMs on this section of which one TBM will travel towards R.K. Salai while the other two will move towards Thousand Lights.
Inspection of Phase 2
![Chennai Metro: TBM Bhavani Begins Tunneling on Royapettah - R.K. Salai Section of Line 3 2 1721563646824](https://www.metrorailnews.in/wp-content/uploads/2024/07/1721563646824-1024x683.jpg)
In addition to launching the Tunnel Boring Machine (TBM) Bhavani, Mr Udhayanidhi Stalin reviewed the progress of Chennai Metro’s Phase 2 project. He inspected various segments of the project, including the common ticketing system and the stretches from the Airport to Kilambakkam, Koyambedu to Avadi, and Poonamallee to Parandur. Mr Stalin also reviewed the developments of the Coimbatore and Madurai Metros.
![Chennai Metro: TBM Bhavani Begins Tunneling on Royapettah - R.K. Salai Section of Line 3 3 1721563645874](https://www.metrorailnews.in/wp-content/uploads/2024/07/1721563645874-1024x983.jpg)
Furthermore, he examined the construction work at Alapakkam Metro Station, which is part of the 26.09 km-long Line 4, extending from Light House to Poonamallee.
Additionally, Mr. Stalin visited the Poonamallee Depot, which is under construction at a cost of ₹187 crore. This depot will function as a repair and maintenance facility for 56 (six-coach) driverless trains.
![Chennai Metro: TBM Bhavani Begins Tunneling on Royapettah - R.K. Salai Section of Line 3 4 1721563645486](https://www.metrorailnews.in/wp-content/uploads/2024/07/1721563645486-1024x767.jpg)
Chennai Metro’s Line 3
Line 3 also known as the Purple Line is being constructed under Chennai Metro’s Phase 2 project. The 45.4 km long Line 3 features 49 stations (20 elevated & 29 underground) connecting Madhavaram and SIPCOT 2. This line will traverse through some of the significant locations of the city such as Madhavaram, Ayanavaram, Purasawalkam, Thousand Lights, Royapettah, and Adyar.
Royapettah metro station
The Royapettah underground metro station which is a part of Line 3, is being constructed at a cost of ₹250. Located 21.5 meters below ground, the station will be 150 meters long and 22 meters wide.
Line 3 is anticipated to become operational within the next four years.