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Report - Farleigh Down Tunnel - Wiltshire - August 2016

Discussion in 'Military Sites' started by silentwalker, Aug 10, 2016.

  1. silentwalker

    silentwalker 28DL Regular User
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    History
    Farleigh Down is a tunnel connecting the Monkton Farleigh ammunition depot with the main line railway at Ashley. The tunnel is over a mile long and straight. A conveyor belt was used to move the ammunition underground between the top of the hill and the main line.

    The tunnel was designed to handle 1000 tons of ammunition wach day, it provide a secure route for the ammunition in to the site and it was practically invisible from the air. A 30 foot deep slopeshaft was sunk at the sidings which became the start of the tunnel which connected at quarry floor level in the depot on one of the main haulage ways. The tunnel is at a constant gradient as it travels up the hill to the depot.

    Half of the tunnel was bored nearer the top of the hill where it met a depth of roughly 180 feet below ground, half way down the technique was changed and a trench was opened in to this square box sections of tunnel were laid and re-covered. Most of this section of the tunnel was barely underground, some of it was even partially above the surface level and had to be disguised by forming gently sloping mounds of earth over it.

    A conveyor belt was installed in the tunnel which could transport the ammunition at 250 feet per minute, at the siding’s end of the tunnel was an underground marshaling yard where the ammunition would be loaded on to narrow gauge carts and then taking up the slopeshaft to the platform aided by a mechanical tram creeper. The ammunition could then be moved from the carts in to railways carriages for distribution.

    The aerial ropeway to the depot continued to be maintained after the tunnel came in to action. This was in case the tunnel’s conveyors ever broke down and a backup was needed. Approaching D-day with high flows of ammunition the tunnel and the rope way was used to handle the massive amounts of ammunition required for the invasion of Europe.

    The Explore

    As we was in the area we thought we would pop here and check it out. Apart from it being utterly trashed with sh*t graffiti and rubbish it is a pretty decent place, if you are feeling fit enough the tunnel is just over a mile and a quarter long so brace yourself, it does take a while to get from one end to the other and back again. The end is backfilled from the Monkton Farleigh Mine side which is now run by a private storage firm. There is a hole at the end but you need to be paper thin to get though and even then it is very unstable so I wouldn't bother trying it. Visited with @Porker of the night

    Diagram
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    On to the pictures

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    Cheers for having a ganders :thumb
     

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  2. Porker of the night

    Porker of the night Like a cat on a fence....
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    What a weekend this was! Nice one bruvvvaaaaaaaa:thumb
     
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  3. silentwalker

    silentwalker 28DL Regular User
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    Can't wait to get back there ;)
     
  4. wellingtonian

    wellingtonian Subterráneo
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    Fucks your calves up, that place does. :yawnI
     
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  5. espchris

    espchris On the go all ways
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    To a dead and
     
  6. silentwalker

    silentwalker 28DL Regular User
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    Not a total dead end if you are small enough ;)
     
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  7. Six

    Six 28DL Regular User
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    I never remember what this place is called! I found it quite disorienting because it slopes upwards but you're underground so you feel like you should be walking downhill. I was a confused 16 year old when I visited this place though to be fair.
     
  8. silentwalker

    silentwalker 28DL Regular User
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    Oh the walk back down is rewarding on the legs :D the up hill is a nightmare :eek:
     
  9. Oort

    Oort The spice expands consciousness.
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    I somehow managed to knacker my back when I visited, pretty good snaps considering its just one big long tunnel! Nicely lit.
     
  10. silentwalker

    silentwalker 28DL Regular User
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    I knackered everything somehow, my body gave up after a long weekend in Wiltshire o_O and cheers matey :thumb hard to take pics there without everything looking the same
     
  11. Oort

    Oort The spice expands consciousness.
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    Usual spots or anything interesting?
     
  12. AltCoyne

    AltCoyne 28DL Full Member
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    This was my first proper explore!

    Is the portaloo still down there? Abolsutely reeked the last time I was there.
     
  13. silentwalker

    silentwalker 28DL Regular User
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    Porta loo still there but on its side :turd thank god it didn't hum o_O
     
  14. silentwalker

    silentwalker 28DL Regular User
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    Usual spots and more, will be posting up very soon, just editing at the moment :thumb
     
  15. ACID- REFLUX

    ACID- REFLUX 28DL Regular User
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    Nicely done :thumb
     
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