Kolkata to receive three underground tunnels for metro rail expansion
RAILWAYS & METRO RAIL

Kolkata to receive three underground tunnels for metro rail expansion

Kolkata is ready to receive three underground tunnels as part of the ongoing work to expand the metro rail network. As the sources indicate, the work is being carried out with precautions to protect the century-old building of the Calcutta Municipality.

As per the international rules, in case of a distance of two and a half kilometres or more between the two underground metro stations, a station must be constructed in the middle.

The distance between Sealdah and the Esplanade is more than two and a half kilometres in the East-West Metro project in Kolkata. The metro authorities thought of constructing a station at the Subodh Mallick Square as a result.

Due to lack of land at the place, a giant shaft or cavity resembling a well is being constructed there.

The tunnels are being built 13 meters below the ground. Two of them are ventilation tunnels, with an emergency tunnel below to enable a safe exit for the passengers and the entry point of the tunnel begins at 13 meters below the ground. The ending point of this shaft is going to be at least 22 meters below the ground, and the construction work is being done under continuous monitoring of the ITD engineers.

Dinesh Dani, the project engineer in charge, told the media that there are several aquifers in the place from where the water is drawn, and secondly, the century-old Calcutta Municipality building is not far from the tunnels' spot. He said that the vibration felt while digging the tunnel could also pose a problem for the floor of the Municipality and other nearby old buildings and that the work on that shaft is proceeding slowly but cautiously.

Image Source


Also read: Kolkata East-West metro project: Railways completes tunnelling work

Also read: Kolkata metro project: Govt permits RVNL to import 5,000 tonnes of steel

Kolkata is ready to receive three underground tunnels as part of the ongoing work to expand the metro rail network. As the sources indicate, the work is being carried out with precautions to protect the century-old building of the Calcutta Municipality. As per the international rules, in case of a distance of two and a half kilometres or more between the two underground metro stations, a station must be constructed in the middle. The distance between Sealdah and the Esplanade is more than two and a half kilometres in the East-West Metro project in Kolkata. The metro authorities thought of constructing a station at the Subodh Mallick Square as a result. Due to lack of land at the place, a giant shaft or cavity resembling a well is being constructed there. The tunnels are being built 13 meters below the ground. Two of them are ventilation tunnels, with an emergency tunnel below to enable a safe exit for the passengers and the entry point of the tunnel begins at 13 meters below the ground. The ending point of this shaft is going to be at least 22 meters below the ground, and the construction work is being done under continuous monitoring of the ITD engineers. Dinesh Dani, the project engineer in charge, told the media that there are several aquifers in the place from where the water is drawn, and secondly, the century-old Calcutta Municipality building is not far from the tunnels' spot. He said that the vibration felt while digging the tunnel could also pose a problem for the floor of the Municipality and other nearby old buildings and that the work on that shaft is proceeding slowly but cautiously. Image Source Also read: Kolkata East-West metro project: Railways completes tunnelling work Also read: Kolkata metro project: Govt permits RVNL to import 5,000 tonnes of steel

Next Story
Technology

Constructive Automation

On most construction sites, the rhythm of progress is measured by the clang of steel, the hum of machinery and the sweat of thousands. But increasingly, new sounds are entering the mix: the quiet efficiency of algorithms, the hum of drones overhead, and the precision of robotic arms at work. Behind the concrete and cables, an invisible force is taking hold: data. It is turning blueprints into living simulations, managing fleets of machines, and helping engineers make decisions before a single brick is laid. This is not the construction of tomorrow; it is the architecture of today – built on ..

Next Story
Real Estate

Google India’s New Campus

India continues to cement its position as a global digital powerhouse – and Google’s latest milestone reinforces this trajectory with the inauguration of Ananta, one of its largest offices worldwide. CW explores the design, sustainability and construction aspects of this landmark campus in Bengaluru.Significance of AnantaLocated in Mahadevapura, Bengaluru, Ananta spans 1.6 million sq ft and is situated within Bagmane Tech Park. Named after the Sanskrit word for ‘infinite’, this state-of-the-art, 11-storey facility is Google’s fourth office in Bengaluru. It is designed to foster colla..

Next Story
Infrastructure Urban

Indian Delegation Visits South Africa for Trade and Investment Talks

A nine-member Indian delegation participated in the second session of the India-South Africa Joint Working Group on Trade and Investment (JWGTI) held in Pretoria from 22 to 23 April 2025. Discussions were conducted in a cordial atmosphere, focusing on expanding trade ties, boosting investments, and fostering greater people-to-people exchanges. The meeting was co-chaired by Malose Letsoalo, Chief Director, Bilateral Trade Relations, Department of Trade, Industry and Competition of South Africa, and Priya Nair, Economic Adviser, Department of Commerce, India. Delegates from the High Commission ..

Advertisement

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Advertisement

Talk to us?