Admiralty Tunnel

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Admiralty Tunnel
Fortification Gibraltar 02852.jpg
looking down the tunnel
Location Gibraltar
Coordinates 36°07′47″N 5°21′11″W / 36.129634°N 5.352938°W / 36.129634; -5.352938Coordinates: 36°07′47″N 5°21′11″W / 36.129634°N 5.352938°W / 36.129634; -5.352938
Status private
Constructed Cochrane Ltd
Owner Government of Gibraltar
Operator Continent 8
Length 1,000 metres (3,300 ft)

Admiralty Tunnel is a tunnel in Gibraltar.[1] The tunnel was used for the purpose of bringing stone from the east side.[2] During the second World War the tunnel contained an operations centre where Dwight Eisenhower planned Operation Torch. The operations centre is now (2013) used to house a secure data facility.


The new navy base was begun in 1893, but for some time the stone was brought by barge from the east side of the rock to Gibraltar Harbour on the west side. The tunnel allowed stone from the quarries on the east side to be brought via a one-metre narrow gauge railway to help construct the navy base on the west side.[2]

The Women's Royal Naval Service relaxing in their recreation room inside the rock during World War two. This is the type of accommodation available inside the rock during the war

It is the only tunnel that runs from east to the west of the Rock of Gibraltar, and during World War Two the tunnel was reworked and a 3,000-square-metre area roughly halfway down it became a state-of-the-art communications centre. This Allied Command Headquarters centre was protected from enemy bombs by metres of rock in every direction and contained the board room where the invasion of North Africa (Operation Torch) was planned[3] by Dwight Eisenhower. As a result, Eisenhower not only commanded the operation, but he was the first non-British person to command Gibraltar for 200 years.[4]It had its own systems for fresh air, electricity, lighting and communication links to the outside world.

The space now contains a very secure data storage facility* previously owned by Vault Technology Services[3] and now operated by Continent 8.[5] It is not open to the public but it is possible to see from one end to the other and thus to observe how straight the tunnel is. The west end of the tunnel is accessible from Queensway.[5]

  • Size of data storage facility is 3000 m2, which is split up into 80 separate rooms.


  1. ^ Eley, Colonel D.M. (1957). The Gibraltar Tunnels.
  2. ^ a b "The Gibraltar Tunnels" (PDF). Retrieved 28 April 2013. 
  3. ^ a b "Visit to Secure Data Facility". Gibraltar Group of Professional Engineers. Retrieved 19 April 2014. 
  4. ^ Gallagher, Wes (December 1942). "Eisenhower Commanded Gibraltar". The Lewiston Daily Sun. Retrieved 29 April 2013. 
  5. ^ a b Directions to ..., Continent 8 Technologies - Gibraltar, accessed April 2013