RNAD Coulport

"Coulport" redirects here; for the neighbouring village, see Coulport (village).

RNAD Coulport
Part of HMNB Clyde
Loch Long, Argyll, Scotland
250px Entrance to RNAD Coulport
Coordinates
Type	Storage and loading of nuclear warheads
Site information
Owner	UK government
Controlled by	Royal Navy
Open to the public	No
Site history
Built	1963-8 (Polaris programme) 1982-95 (Trident Works Programme)

RNAD Coulport in Argyll, Scotland, is the storage and loading facility for the United Kingdom's stock of Trident nuclear warheads. The base, which is near the village of Coulport, has up to 16 reinforced concrete bunkers built into the hillside on the eastern shore of Loch Long. Coulport is the last depot in the UK to retain the "RNAD" designation indicating a Royal Naval Armaments Depot.

The depot was established during the Cold War as the storage and loading facility for the UK's Polaris nuclear weapons system. Today Coulport is primarily used for handling the Trident system. It also stores and handles conventional weapons, for example the Spearfish torpedo.

Two docks for Vanguard nuclear submarines lie beneath the bunkers. These are used to load and unload submarines before they go on patrol. The older jetty is known as the Polaris Jetty, while the newer, covered Explosive Handling Jetty (EHJ) is used for handling Trident warheads.

History

Trident II (D-5) missile underwater launch.

File:Trident boat.jpg

A Trident submarine leaving its base on the Clyde. The village of Strone is visible in the background.

File:Coulport MOD Property - geograph.org.uk - 760956.jpg

Perimeter fence at RNAD Coulport.

File:M.O.D. road to Coulport - geograph.org.uk - 160829.jpg

MoD road to RNAD Coulport.

Coulport had originally been best known as a summer holiday retreat for wealthy Glaswegians, with its most notable feature being Kibble Palace, now relocated to the Glasgow Botanic Gardens.

The Nassau Agreement was signed in December 1962, and the Polaris Sales Agreement was signed in April 1963. Construction of Coulport, on the site of the farm of Duchlage (historically spelt Duchlass), began in 1963, and was completed in 1968.

The Trident Works Programme at Coulport and Faslane, co-ordinated by the Property Services Agency, took 13 years to complete. Planning work at Coulport began in 1982, and the estimated final cost for the entire programme, at 1994 prices, was approximately £1.9 billion. This made it the second most expensive procurement project in the UK after the Channel Tunnel project.

Prior to the Scottish independence referendum in 2014, the implications of a potential vote for Scottish independence from the United Kingdom for the Coulport and Faslane bases were extensively discussed in the media, as it was unclear if any submarine base in England, Wales or Northern Ireland could house the Coulport silos. However, since the Scottish electorate voted against independence, the area along with the rest of Scotland remained UK territory and so the bases, and the equipment housed there, were unaffected.

Explosive Handling Jetty

A covered floating dry dock for the Trident submarines was built at Hunterston in Ayrshire, and floated to RNAD Coulport where it has been situated since 1993. This Explosive Handling Jetty is one of the world's largest floating concrete structures.

Sister depot at Kings Bay, Georgia

The UK's Polaris system was fully serviced at Coulport, but the Trident missiles are randomly selected from the large US stockpile at the Trident Refit Facility at the Naval Submarine Base Kings Bay, Georgia. The missiles are not owned by the UK, which has "mingled asset" ownership rights to 58 missiles from a pool shared with the US Navy. The Trident warheads are designed and manufactured by the Atomic Weapons Establishment at Aldermaston, Berkshire, England, and are owned by the UK government.

Safety and accidents at Coulport

Exercise Bowline is the annual test of the emergency response routines to a nuclear weapon accident at Coulport. It is conducted by the Office for Nuclear Regulation. In 2011 the test failed as "a number of command and control aspects of the exercise were not considered to have been adequately demonstrated".

The Exercise was repeated later in the year and recorded "a marked improvement" and that "the agreed objectives and associated success criteria of the ‘Command and Control’ aspects were met."

Transport of Trident nuclear warheads by road

Main article: Defence Nuclear Material Transport Operations

The main logistical movement of nuclear weapons in the United Kingdom is between the Atomic Weapons Establishment in Berkshire and RNAD Coulport in Argyll, in both directions. Because the warheads need to be constantly refurbished, batches are shuttled by road convoy several times a year. Convoys use staging posts and crew change locations during this journey.

The Truck Cargo Heavy Duty (TCHD) carriers containing the weapons are escorted in a convoy of MoD vehicles commanded by a Ministry of Defence Police Chief Inspector. The crew, of up to 50 people, includes a first aid team, fire crew and personnel equipped to monitor for radiological hazards. The convoy maintains contact by radio and telephone with Task Control, MDP Central Control Room, Wethersfield, Essex, which monitors its movement, and with the civil police forces in the affected areas.

Police forces are notified at least 24 hours in advance of a convoy being routed through their area; this enables them to advise the convoy about any local traffic problems. Police forces may advise fire brigades of the presence of the convoy if it is moving into the vicinity of a fire brigade operation.

Details of nuclear warhead convoys are kept secret by the UK government and the MoD who operate a "Neither Confirm Nor Deny" policy on informing the public regarding convoys. Evidence given by the Nuclear Information Campaign to the Defence Select Committee (based on figures from campaign group Nukewatch UK for 2000 to 2006) give the number of convoys as ranging from two to six return journeys per year from Aldermaston to Coulport. Estimates of the warhead numbers transported during this period are that 88 were moved from Aldermaston to Coulport while 120 were returned, indicating a withdrawal of between 30 and 50 warheads leaving an operational stockpile of between 170 and 150 warheads.

In the event of a nuclear accident the SSC would activate the MoD's Nuclear Accident Response Organisation and would alert the local police constabulary immediately. The responsibility for these operations rests with the Director Nuclear Movements & Nuclear Accident Response Group.

Protesters regularly try to stop the convoy and climb onto the TCHDs. The MDP are trained on a regular basis to counter any protest. MDP motorcyclists and traffic car officers make arrests and then hand over responsibility to the local police force. For 22 years Aldermaston Women's Peace Campaign have held a monthly camp outside the fence at AWE Aldermaston. Nukewatch UK tracks convoys and has provided evidence for the House of Commons Defence Select Committee (evidence from Nuclear Information Service)

See also

• 1958 US–UK Mutual Defence Agreement
• British replacement of the Trident system
• DM Glen Douglas
• Nuclear weapons and the United Kingdom
• Polaris Sales Agreement
• Scottish Campaign for Nuclear Disarmament
• Special Relationship
• UGM-27 Polaris
• UK Trident programme

External links

• Official page at the Royal Navy website
• RNAD Coulport at Secret Scotland
• Floating Trident Submarine Dry Dock at Coulport