Nuclear weapons convoy routes

The components for the warheads are made at AWE Aldermaston (Atomic Weapons Establishment) in Berkshire and taken to nearby AWE Burghfield for assembly. The convoys take the completed warheads from Burghfield north to Coulport on Loch Long, north of Glasgow. At Loch Long the carriers are unloaded and the warheads placed in underground bunkers in the Trident Area.

When required they are taken to the Explosive Handling Jetty at Coulport where they are fitted onto the missiles on the Trident submarines. The warheads require to be checked every so often and batch samples are taken from the Coulport depot to Burghfield and returned to Coulport after servicing. The frequency of convoys varies from year to year. In 2016 there have been six loaded convoys to Scotland by September.


The MOD prefers convoys to travel on motorways and A roads but at either end of the route they must use smaller roads. Not all roads are passable due to the great weight of the convoy trucks. There is an eastern route, mainly relying on the A1(M), and a western route using the M6/M74, although they sometimes go across country from one to the other.

Emergency exercises take place on bases in East Anglia and occasionally elsewhere.

IMPORTANT : Remember Nuclear Warhead Convoys can be seen on other routes. It is vital that you tell someone from Nukewatch whenever you see one.



phone us Please tell us if you spot a convoy...

South: 0345 4588 364

North: 0345 4588 365

Mobile: 07796 226488

Put our number in your phone, and let us know... When did you see it?... Where did you see it?... Which way was it going?... Thanks

Latest tweets

  • Loading tweets...


Nukewatch Policy

We think that it is very important that Nukewatch continues to monitor the safety of UK nuclear warhead convoys, and that Convoy dangers are highlighted to the general public and those along its routes.

But we still think it's important that Nukewatch is not seen to be helping potential terrorists. So we do not put technical information on the websites such as vehicle number plates and short break locations in lay-bys. We only put out convoy movements in advance to our own network. This also means that we would not alert the media in advance, except to contact known and trusted journalists who might come along to report a convoy passing.