The Channel Tunnel (French: Le tunnel sous la Manche; also nicknamed and shortened to Chunnel) is a 50.45-kilometre (31.35 mi) rail tunnel linking Folkestone, Kent, in the United Kingdom, with Coquelles, Pas-de-Calais, near Calais in northern France, beneath the English Channel at the Strait of Dover. At its lowest point, it is 75 m (250 ft) deep. At 37.9 kilometres (23.5 mi), the tunnel has the longest undersea portion of any tunnel in the world, although the Seikan Tunnel in Japan is both longer overall at 53.85 kilometres (33.46 mi) and deeper at 240 metres (790 ft) below sea level. The speed limit for trains in the tunnel is 160 kilometres per hour (99 mph).

Course Channeltunnel en.svg

Map of the Channel Tunnel
Location English Channel (Strait of Dover)
Coordinates 51.0125°N 1.5041°ECoordinates: 51.0125°N 1.5041°E
Status Active
Start Folkestone, Kent, England,
United Kingdom
(51°5′49.5″N 1°9′21″E)
End Coquelles, Pas-de-Calais, Hauts-de-France, France
(50°55′22″N 1°46′50.16″E)
  • 6 May 1994 (tunnel)
  • 14 November 1994 (passenger service)
Owner Eurotunnel
Character Through-rail passenger and freight. Vehicle shuttle.
Line length 50.45 km (31.35 mi)
No. of tracks 2 single track tunnels
1 service tunnel
Track gauge 1,435 mm (4 ft 8 12 in) (standard gauge)
Electrified 25 kV AC OHLE, 5.87 m[1]
Operating speed 160 kilometres per hour (99 mph)


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