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Report - Morlais (Miler) Tunnel, South Wales - November 2012

Discussion in 'Underground Sites' started by cunningcorgi, Nov 29, 2012.

  1. cunningcorgi

    cunningcorgi 28DL Regular User
    Regular User

    Apr 12, 2011
    Likes Received:
    Visited with wonkycows


    The London & North Western Railway opened its connection to the Brecon & Merthyr in 1879, having become joint owners of the latter four years earlier.

    Immediately south of Morlais Junction, the line plunged into a 1,040 yard tunnel which is 80 feet below ground at its deepest point. The last train scuttled through on 6th January 1958.

    From its northern entrance, a gentle southerly curve soon gives way to a longer, straight section which incorporates three ventilation shafts - the middle one of these has lost its pepperpot. There is significant water ingress from the northerly shaft whilst the other two are dry.

    The structure, which is in generally good condition, has become a magnet for abandoned and burnt out cars.


    Driving back from another tunnel jaunt, we drove over the top of this one and with time on our hands, decided to head in for a look to see what, if anything, had changed since we were last in there.

    1. Northern portal

    2. Inside, looking back

    3. Curving back

    4. Distant southern portal

    5. Bracing

    6. Cars

    7. Wet shaft

    8. Brickage

    9. Calcite

    10. Dry shaft

    11. Nearly there

    12. Northern portal

    Thanks for looking.

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