Gotthard Base Tunnel in Switzerland is the world's longest and deepest railway tunnel, measuring 57 km (35 miles) in length and reaching depths of up to 2,300 metres (7,546 feet). Opened in June 2016, this engineering marvel cuts through the Alps, connecting Erstfeld and Bodio to create a high-speed, low-level route for trains between northern and southern Europe.

Gotthard Base Tunnel in Switzerland is the world's longest and deepest railway tunnel, measuring 57 km (35 miles) in length and reaching depths of up to 2,300 metres (7,546 feet). Opened in June 2016, this engineering marvel cuts through the Alps, connecting Erstfeld and Bodio to create a high-speed, low-level route for trains between northern and southern Europe. 

Key Facts about the Gotthard Base Tunnel:-
Construction & Timeline: 
The project took roughly 20 years to complete, involving 2,400 workers and the excavation of 28.2 million tonnes of rock.
Significance:-
 It serves as the backbone of the new transalpine railway axis (AlpTransit), significantly reducing travel time between Zurich and Lugano.
Structure: -
It consists of two single-track tunnels, allowing for safe, high-speed travel (up to 250 km/h).
Impact: -
The tunnel facilitates heavy freight traffic and reduces energy consumption by allowing trains to traverse the Alps with minimal climbing. 
The tunnel is part of an extensive, record-breaking underground network in Switzerland, where over 10% of road and rail networks are located below ground. 
Gotthard Base Tunnel - Sika India
International References. Gotthard Base Tunnel. 2016. Erstfeld-Bodio, Switzerland. When the Base Tunnel officially opened on June 1, 2016.

MJF Lion ER YK Sharma

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