How long is the channel tunnel? The channel tunnel is 31.5 miles long or 50.45 km. That’s the equivalent of 169 eiffel towers stacked on top of each other. 23.5 miles (37.9 km) of the channel tunnel is under the english channel, making it the world’s longest undersea tunnel.
How Long Is the Tunnel Under the English Channel?
The Channel Tunnel, or “Chunnel” as it is commonly known, is a rail tunnel connecting the United Kingdom to France that runs beneath the English Channel. It is one of the longest underwater tunnels in the world, measuring 37.9 miles in length. The Chunnel is a feat of engineering ingenuity, taking more than five years to construct and costing more than fifteen billion dollars.
The Chunnel was the first tunnel to be constructed beneath the English Channel, and its construction presented a unique set of challenges. The tunnel is divided into three sections, two of which are rail tunnels and the third is a service tunnel. The two rail tunnels each measure just over 17 miles in length and are connected by a service tunnel approximately 3.5 miles in length.
The Chunnel is a marvel of engineering and was completed in 1994. The tunnel is designed to withstand the force of the English Channel and the weathering of the sea. The tunnel walls are lined with a concrete material and are protected from the water by a series of pumps that keep the water out.
The Chunnel is also equipped with a state-of-the-art fire safety system, which includes smoke detectors, fire extinguishers, and sprinklers. The tunnel also
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