Is there water under the Eurotunnel?

At 37.9 kilometres (23.5 mi), it has the longest underwater section of any tunnel in the world and is the third longest railway tunnel in the world. The speed limit for trains through the tunnel is 160 kilometres per hour (99 mph). The tunnel is owned and operated by the company Getlink, formerly Groupe Eurotunnel.



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It is 50.5km long and comprises an undersea section of 38km, still the longest in the world.

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The tunnel is actually designed to leak. As Eurotunnel explain on their website, 'seawater from the rocks above the tunnel drips through and is then pumped away.

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On 11 September 2008, a France-bound Eurotunnel Shuttle train carrying heavy goods vehicles (HGVs) and their drivers caught fire while travelling through the Channel Tunnel.

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Water is drained from the tunnels by large submersible pumps, and reliable operation is critical - there are more than 200 train movements in each direction every day. Eurotunnel engineers sought a high-quality solution to control all pumping processes during excavation.

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If you are travelling on LeShuttle, which uses the Channel Tunnel, you stay in your car during the 35 minute journey from Folkestone to Calais. Once your car is loaded onto the deck of its shuttle and your crossing starts, you can leave your car to stretch your legs or use the on board toilets.

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In cooperation with Rönesans Holding, the Heitkamp Construction Swiss GmbH tunnel and railroad construction specialists constructed the world's longest and deepest tunnel, the Gotthard Base Tunnel. This 57 kilometre-long tunnel lies at a depth of 2,300 metres.

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The Eurostar travels through the Channel Tunnel at a speed of 100 miles per hour (160kph) although when the train is outside the tunnel it reaches speed of 186 miles per hour (300 kph).

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1 Acetylene (Oxy-acetylene) and toxic gases; 2.4. 2 Vehicles powered by or which run on Hazardous Goods including Liquid Petroleum Gas (LPG) (Butane or Propane), Liquid Natural Gas (LNG), Compressed Natural Gas (CNG) or any other flammable gas.

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This accident of geology was one of the two reasons why the fixed link is a tunnel and not a bridge. The other reason is that the Channel is the busiest seaway in the world, with over 600 shipping movements each day. Any bridge or other structure in the Channel would almost certainly be rammed by a ship in due course.

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Eurotunnel passengers were stranded for nearly five hours at subsea level after the train broke down beneath the Channel, leaving hundreds of passengers to be ushered to a service tunnel.

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The thickness of the concrete wall varies from 1.0 m to 1.1 m. The 3 marine TBMs started from the Shaft as did two of the landward TBMs - the Service Tunnel and the Running Tunnel South.

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Who can travel through the Channel Tunnel? Foot passengers can travel with Eurostar, between our UK stations London St Pancras International and our stations on the continent . People who want to travel with their own vehicle or on a coach can use the Eurotunnel Le Shuttle between Folkestone and Calais.

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