Below written are two Sets of 10 Lines on India’s first underwater metro rail projects. After reading the sets you will not only get useful information about the Kolkata’s metro project but also get an idea about the technicalities of the project.
10 Lines on India’s first underwater metro rail – Set 1
1) The Underwater Metro service in Kolkata was inaugurated on 13th February 2020 by the Union Minister for Railways and Commerce, Mr. Piyush Goyal.
2) The commercial operation for the public began on 14th February 2020.
3) The train runs between Salt Lake Sector V and Howrah.
4) The underground metro originates at Phoolbagan and terminates at Howrah Maidan.
5) Between Phoolbagan and Howrah Maidan, there are four intermediary stations – Sealdah, Esplanade, Mahakaran and Howrah.
6) Total length of the line is 16 Kms with 10.8 Kms running inside a tunnel.
7) It has the first ever transportation tunnel through a River in India.
8) The underwater stretch comprises of twin concrete tunnels fitted with hydrophilic gaskets to prevent water leakage.
9) The service is estimated to ply around one million passengers every day.
10) It reduces the travel time between the Salt Lake Sector V and Howrah from an hour to less than 30 minutes.
10 Lines on India’s first underwater metro rail – Set 2
1) The first under water metro is a part of Phase-I of East-West Metro Project in Kolkata.
2) It connects Howrah on the West Bank or River Hooghly with Salt Lake on the East Bank.
3) The project is executed by KMRCL (Kolkata Metro Rail Corporation Limited).
4) The length of the tunnel is 10.8 Kms and its width is 5.5 meters.
5) The roof of the tunnel has a height of 30 meters from the ground level.
6) The metro line traverses under the river Hooghly for around 520 meters.
7) The project is estimated to have a cost of Rs 8,500 crore.
8) The contract of building underground section from Central to Howrah Maidan was bagged by Afcons (Shapoorji Pallanoji Group).
9) Two Tunnel Boring Machines (TBMs) named Rachna and Prerna for boring underground tunnels.
10) On 3rd July 2019, both the TBMs were successfully taken out and loaded on the trailers.
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