Mumbai Metro: 50 Per Cent Tunnelling Completed On 56 KM-Long Colaba-Bandra-SEEPZ Corridor’s Underground LineMMRC has worked in full steam with the help of 17 TBMs to tunnel the city, and are working towards the next 19 breakthroughs on the 33.5 km long metro-3 alignment.(Image via @rajtoday/Twitter) (representative image)

Mumbai’s first underground metro rail line has seen breakthrough as 28-km (50 per cent) tunnelling of Line 3 has been completed in a period 19 months. The Mumbai Metro 3, or line 3 is a 56-km line on the Colaba-Bandra-SEEPZ corridor.

The breakthrough was revealed by journalist Rajendra B. Aklekar on Twitter. The Mumbai Metro Rail Corporation (MMRC) launched the first tunnel boring machine (TBM)- Krishna-1 at Naya Nagar, Mahim in September 2017.

Since then the MMRC has worked in full steam with the help of 17 TBMs to tunnel the city, and are working towards the next 19 breakthroughs on the 33.5 km long metro-3 alignment.

The first breakthrough on alignment came in September 2018, followed by 12 more breakthroughs achieved at SEEPZ, CSIA T2, Sahar Station, MIDC, Domestic Airport T1, Dadar, Worli, Vidyanagari and Vidhan Bhavan over the next eight months till May 2019.

The longest line of tunnelling completed is the 3.9 km-long stretch between Vidyanagari and the Domestic Airport, and the shortest line is the 562-meter long Sariput Nagar to SEEPZ stretch. Totally, 19,504 segment rings were used to tunnel the completed 28 km stretch.

An Appeal...

Dear Reader,

As you are no doubt aware, Swarajya is a media product that is directly dependent on support from its readers in the form of subscriptions. We do not have the muscle and backing of a large media conglomerate nor are we playing for the large advertisement sweep-stake.

Our business model is you and your subscription. And in challenging times like these, we need your support now more than ever.

We deliver over 10 - 15 high quality articles with expert insights and views. From 7AM in the morning to 10PM late night we operate to ensure you, the reader, get to see what is just right.

Becoming a Patron or a subscriber for as little as Rs 1200/year is the best way you can support our efforts.

Become A Patron
Become A Subscriber
Advertisement