Eurotunnel channel

The Eurotunnel, also known as the Channel Tunnel, is one of the greatest engineering feats in the world, linking England and France beneath the English Channel.

About this subject

The Eurotunnel, also known as the Channel Tunnel, is a 50.45 km (31.35 mi) underwater railway tunnel, with 37.9 km (23.5 mi) under the sea. Opened in 1994, it connects Folkestone, Kent in England to Coquelles near Calais in France. It holds the record as the longest underwater tunnel in the world, surpassing Japan's Seikan Tunnel. Construction took six years and involved approximately 13,000 workers, costing an estimated £4.65 billion (1994 values). The project faced geological challenges such as excavating through chalk marl and clay, requiring specially designed tunnel boring machines.

The tunnel consists of three bores: two for rail traffic (one in each direction) and a central service and safety tunnel. The Eurostar high-speed train service covers the journey in about 35 minutes. Additionally, the Le Shuttle service transports vehicles on special railcars, allowing cars and trucks to cross the Channel without leaving their vehicles. Before the tunnel, the crossing was done by ferry or airplane, taking hours or incurring extra costs.

The idea of a tunnel under the English Channel dates back to the early 19th century, with proposals from Napoleon Bonaparte and other visionaries. However, it was not until 1986 that the British and French governments signed the Treaty of Canterbury authorizing construction. The official inauguration took place on May 6, 1994, by Queen Elizabeth II and President François Mitterrand. Since then, the Eurotunnel has become a symbol of European integration and a landmark of modern engineering. On average, 20 million passengers use it annually.

The Eurotunnel also has ecological and economic significance. By transporting people and freight by rail, it reduces CO₂ emissions compared to ferries and airplanes for the same route. The tunnel is monitored 24/7 by advanced safety systems, including fire detectors and controlled ventilation. In 2015, a fire on a truck in the tunnel caused a temporary closure but no fatalities. The structure continues to be maintained and upgraded to ensure uninterrupted operation.

Frequently Asked Questions

What is the total length of the Eurotunnel?

The Eurotunnel is 50.45 km (31.35 mi) long, with 37.9 km (23.5 mi) under the sea, making it the longest underwater tunnel in the world.

How long does the train journey through the Eurotunnel take?

Eurostar trains take about 35 minutes to cross the tunnel. The Le Shuttle vehicle service also takes approximately 35 minutes.

When was the Eurotunnel opened?

The Eurotunnel was officially inaugurated on May 6, 1994, by Queen Elizabeth II and President François Mitterrand.