After the successful launch of space vehicles in space, India has achieved yet another distinction of being the few nations in the world who are capable of building underwater metro link. This significant feat has been achieved as part of the metro project that connects Howrah and Kolkata. The two cities are divided by the massive Hooghly River and it was a huge challenge for engineers to complete this underwater metro link. This underwater metro link is crucial to the 16.4 km-long mass rapid transport (MRT) project being constructed by the Kolkata Metro Railway Corporation (KMRC). The project is being built at a cost of around Rs 9,000 crore.
Speaking about the major achievement, MD of KMRC Satish Kumar said, “The KMRC team, including engineers from abroad, has completed the construction of India’s first underwater tunnel under the Hooghly River.” The tunneling work was the main part of the project and it took nearly 2 months to tunnel from Howrah to Kolkata. The tunnel is 13 meters beneath the reverbed and 30 meters from the ground.