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Question - Cannonball found under Runcorn Bridge

Discussion in 'General Chat' started by Joseph Robinson, Jul 7, 2016.

  1. Joseph Robinson

    Joseph Robinson 28DL Full Member
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    Me and a friend (I believe he's also a user here) went on an explore and somehow ended up walking through the mud under the Runcorn Bridge, I looked down and noticed what I instantly thought to be a cannon ball, under further inspection it turns out to be a 2lbs, 2.5" ball. Image here:

    [​IMG]
    [​IMG]
    [​IMG]

    Does anybody know anything about this sort of cannonball? Or what the hell it would be doing under the Runcorn bridge? Or anything at all relating to anything to do with this?
     
    #1 Joseph Robinson, Jul 7, 2016
    Last edited: Jul 7, 2016

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  2. The Lone Ranger

    The Lone Ranger Safety is paramount!
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    Interesting find :thumb

    What makes you think it's a canon ball? I'd probably have said it was a large ball bearing probably from the bearings which supported the old transporter bridge or possibly the new road bridge. I have removed grease and inspected similar bearings on other bridges in the past. Only installed fiber optics to the underside of the Runcorn Bridge though. The mud is deep and one of the few places in the UK I have seen a tidal bore come up the river :D

    It could be a canon ball though, nice find anyway.
     
    #2 The Lone Ranger, Jul 7, 2016
    Last edited: Jul 7, 2016
  3. Joseph Robinson

    Joseph Robinson 28DL Full Member
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    I did think of that but it's made of cast iron, ball bearings are surely made from steel? Well my wheels bearings and internal engine bearings where at least, the metal this is made from is unusually soft, it's so soft that when I took an wire brush to it, it put deep gouges in the metal (you can see them in the second image). Also it's 2.5 inch and weighs 2Lbs which I've found lines up well with what would be put inside a grapeshot canister. But then again it may well be part of an old bearing, it was withing spitting distance of the bridge, maybe a football pitch distance away, I have no doubt that during a service a maintenance worker would have no problems with simply chucking it over the edge.
     
  4. drhowser

    drhowser Bespectacled & irrelevant
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  5. Lavino

    Lavino 28ÐŁ ƦEGUŁλƦ U$EƦ
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    You've got some good lungs on you mate if you can spit the distance of a football pitch...
     
  6. Joseph Robinson

    Joseph Robinson 28DL Full Member
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    Aha, it's just a saying, not sure if that saying exists in the rest of the world
     
  7. Snake Oil

    Snake Oil go in drains
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