What is the old longest tunnel?
The old longest tunnel in the world is the Gotthard Tunnel, located in Switzerland. This historic engineering marvel spans a distance of approximately 15 kilometers (9.3 miles) through the Swiss Alps. Constructed between 1871 and 1881, the Gotthard Tunnel was a groundbreaking achievement in its time. It was an integral part of the Gotthard Railway, connecting the towns of Göschenen and Airolo.
The construction of the Gotthard Tunnel was no easy feat. The ambitious project faced numerous challenges, including difficult geological conditions and the use of outdated technology. However, the perseverance and determination of the engineers and workers involved ultimately led to its successful completion. Today, the tunnel plays a vital role in connecting northern and southern Switzerland, serving as a crucial transit route for both freight and passenger trains.