Mumbai will be home to India’s first undersea tunnel that will pass through Arabian Sea near Girgaon Chowpatty. This will be part of the city’s Coastal Road project.
The twin tunnels, which have a length of 2.07 km of which a kilometre will be under the sea, are being built as part of the Mumbai Coastal Road Project, a 10.58-km stretch starting from the Marine Drive promenade to the Worli-end of the Bandra-Worli Sea Link.
The plan is to link South Mumbai with North with a toll-free freeway that is expected to ease up traffic in one of the most congested cities in the world. It will start from Priyadarshani Park and end at Netaji Subhash Road in Marine Drive.
Mumbai’s undersea tunnel will be 20 metres below the seabed.
A 2,800 tonne tunnel boring machine, the biggest of its kind in India, has been deployed to dig these tunnels.
The fact that parts of it are being built under sea makes the construction a significant challenge.
The total cost, which mainly includes construction of tunnels and other allied works, is `2,798.44 crore. The BMC said that work will be completed in about two years.