Cache of WW2 bombs found under a playground in Northumberland

6 months ago (bbc.co.uk)

Someone gave me a book called "Danger UXB", about the teams that removed unexploded bombs across the UK during and after WWII, which was unexpectedly fascinating. Incredibly dangerous and painstaking work.

The costs of UK munition dumping are quite high and varied.

https://en.m.wikipedia.org/wiki/Beaufort%27s_Dyke

What will happen to all the unexploded ordnance just lying in the ground since ww2? Will they eventually decay and dissolve, or will they just get more and more volatile over time?

  • Or WW1, which happens in Flanders/Belgium regularly. I think both. Farmers die from time to time plowing or handling old bombs. If you travel around there you may see bombs left by the front gates for a regular pickup service.

  • This seems like it has to vary significantly depending on a number of factors.

    Unexploded ordnance refers to ordnance that was deployed but failed to explode. E.g. the bomb was dropped from a plane and just didn't explode.

    Deployed mines that haven't exploded are just waiting for someone to interact with them. This seems like it must be the highest risk.

    This article appears to be about a cache of unused bombs. They would not ordinarily explode on their own, but if everything is decaying then the safety mechanisms are also decaying so there must be some risk.

  • Well, you'll be glad to know that people like my dad (ATO/EOD) sorted quite a lot of it out back in the day. However, they could only demolish what they were pointed at and as this article notes, there is more that keeps on turning up.

    This is a bit of a worry: https://en.wikipedia.org/wiki/SS_Richard_Montgomery

    I suggest you don't buy property or go swimming nearby to that. I'm going to stick in Somerset.

  • My assumption is that it will always be a problem.

    There was a case in Virginia where a man was killed by a US civil-war era artillery round in his garage. Granted, he was in the process of making it safe at the time, but this was ~2010 from memory - so ~150 years after the conflict occurred.

    Given that, we can obviously expect that some ordnance from WW2 will still be dangerous in 2095.

  • Over geological timespans, everything decays. Over many decades things can remain unstable or volatile. Even if most of it becomes ineffective, some may be volatile so disturbing anything will be dangerous for many lifetimes.

Was paddling in a beach in Scotland at the weekend and found a .303 bullet. Some research said it’s a US made one from 1915-1917.