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Peak Rail Annual Report and Action Group

Discussion in 'Heritage Railways & Centres in the UK' started by huochemi, Aug 11, 2017.

  1. The Saggin' Dragon

    The Saggin' Dragon Part of the furniture Staff Member Moderator

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    Also not a bridge engineer but it looks like it was there to spread horizontal forces on the columns; quite important given the prevailing flooding etc.
     
  2. Steve

    Steve Part of the furniture Friend

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    Like John & Al, I'm no bridge engineer but, looking at the way they are attached to the columns by clamp rings, they look to be later additions and not part of the original structure. I wonder why the attachments on the right hand column (as viewed) have failed. Corrosion, perhaps?
     
  3. northernsteam

    northernsteam New Member

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    In my past experience of floods in Northumberland, with bridges over water the important bits are hidden in the water. It costs money to bring in qualified diving surveyors to check them out and then can cost large money to do any repairs required. Then you can turn to the above water level. Bracing could have been brought down by debris bashing it on the way through, a tree at full belt can cause a lot of damage to a weakened structure.
     
  4. The Saggin' Dragon

    The Saggin' Dragon Part of the furniture Staff Member Moderator

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    We used this team;

    https://dsace.co.uk/

    To survey and manage repairs to the Dee Bridge at Pentrefelin (Llangollen Railway) back when I was still involved.

    Seemed to do a decent job, Severn Valley used them too.
     
  5. RichardBrum

    RichardBrum New Member

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    Because the bridge is a slew bridge, the bracing isn't at a right-angle to the flow, & anything being carried downstream is going to hit into the bracing. The flow will also be greater in the middle, & that column is further into the river than the one to it's left.
    So that end of the bracing is more likely to get hit, & at a greater force.

    The attachments also look like they are simply clamped around the columns & not actually attached to them.
     
  6. Breva

    Breva Well-Known Member

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    If you were prudent, and knowing of the damage the flood just caused, you would examine the foundations of the piers now.
     
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  7. Thompson1706

    Thompson1706 Member

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    Working over rivers can be very expensive as all work done has to be approved by the rivers authority. Things such as removing possibly lead- based paint which can pollute the river are very expensive. Definitely needs a professional survey. The bracing isn't for decorative purposes.

    Bob.
     
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  8. Dunfanaghy Road

    Dunfanaghy Road New Member

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    Is this the bridge whose piers rise from concrete columns cased in old loco tyres? Last time I was up that way (when PR were at Buxton!) on of the then PR people told me it was worth a look.
    Pat
     
  9. northernsteam

    northernsteam New Member

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    Hope that is done before the next floods come down!
     

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