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Report - - Llanberis Bomb Store - Dec 2020 | Military Sites | 28DaysLater.co.uk

Report - Llanberis Bomb Store - Dec 2020


hadalzone

28DL Member
28DL Member
First post! I grew up around derelict military sites so it's fitting that my first report is a dive into Llanberis Bomb Store.

History
This was an old RAF facility built in 1939 in the location of a disused slate quarry. Its purpose was to store 18,000 tonnes of bombs underground, following a similar design employed at Harpur Hill (which interestingly got used later as a mushroom farm). The store is made up of two floors with a small stairwell and three lifts, and each floor is made up of very long halls, connected with sets of arched doorways. The upper halls have very tall arched ceilings whereas the downstairs halls have rectangular construction. A railway runs through the lower level to outside to carry bombs. Originally, the entire complexion would have been completely buried, however in 1942, two-thirds of the structure collapsed as backfill covered it. This collapse engulfed more than 14,000 tonnes of bombs, 14% of the RAF's stock at the time. The collapsed area was cleared out and the bombs recovered.

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This map shows the current layout of the bomb store.

Pictures!
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Outside of the store (view looking inwards to the collapsed area standing at the bottom end of the map)
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On the left, you can see where the railway ran.


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Lots of graffiti downstairs.


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One of the lifts! Very cool mechanisms.
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Upstairs; these halls are incredibly long.
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Archways run perpendicular to the long halls.
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Brick edge arches.
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Everyone seems to leave their bootprint on this wall at the top of the stairs.
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Loved this place. Darker than a dark place in dark-town in dark-shire inside. Jumped at my own footsteps.

I intend to drag my photographer mother back here for better photos. Next time I want to crawl through the hole into the tunnel at the top of the map.

- Cathode
 

Down and beyond

I am just developing the mine by improving access
Regular User
Nice to see it’s still open ,Was it still full of litter and you just photographed around it ? Great report by the way !
 

wormster

28DL Full Member
28DL Full Member
The brick supports were put into the structure after the collapse to sure up the remaining section. I have a feeling that not all of the bombs are gone
 

Calamity Jane

i see beauty in the unloved, places & things
Regular User
Good 1st report. Covered well, showcased the place. Welcome to the world of posting in 28DL, hope to see more of you after this pandemic of course :thumb
 

hadalzone

28DL Member
28DL Member
The brick supports were put into the structure after the collapse to sure up the remaining section. I have a feeling that not all of the bombs are gone
Interesting! This bomb store is just one small part of a larger complex; it was linked to quarries, and apparently, there's still a lot of equipment still under the waters of the flooded quarries. Perhaps munitions deemed not worth moving.
 

wormster

28DL Full Member
28DL Full Member
Interesting! This bomb store is just one small part of a larger complex; it was linked to quarries, and apparently, there's still a lot of equipment still under the waters of the flooded quarries. Perhaps munitions deemed not worth moving.
Problem bieng that you have to take into account that de-watering the area to expose any remaining bombs, fuses equipment etc. would involve the whole of the "Lost World" behind Grhonwy Quarry and I think it would be too expensive!
 

Fluffy

28DL Full Member
28DL Full Member
Next time I want to crawl through the hole into the tunnel at the top of the map.
If you do, a word of caution. There's a makeshift 'rope' hoist thingy to help you get INTO the tunnel from the bomb store side.
There's NOTHING on the other side to help you get back OUT of the tunnel! (At least not when I went last year)
It's easy to hoist yourself in, not so easy to get back out again!

The tunnel itself is pretty cool, but doesn't go anywhere, except to a flooded daylight entrance a few hundred yards back.

Great report though, keep it up.
 

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