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Report - - Hong Kong ARP networks. 2017 | European and International Sites | 28DaysLater.co.uk

Report - Hong Kong ARP networks. 2017

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drhowser

Bespectacled & irrelevant
Regular User
I was originally going to do one report for all of these with a couple of photos from each, assuming that they were all going to be basically the same. As I've worked through a few of them they've been different enough to warrant a post for each.
I'm sure that I'm going to be doing more of them, so I'll add new posts as I do.

Hong Kong got it pretty hard during WW2, first the Japanese invaded and took over with relatively little effort, then once they were established the Americans began bombing. Unexploded ordnance is still quite regularly found on construction sites.

The Hong Kong government was pretty slow to begin preparations for defence and protection, with the construction of the Air Raid Precaution tunnels only beginning in 1940. Many were still unfinished when the Japanese invasion happened.
After they took control, the Japanese also started using the tunnels, now for protection against the american bombs and also for storage of munitions. Some are alleged to have also been used for detention and torture of prisoners.

So far I have not found a set of tunnels which has been complete, they have all to some degree been backfilled for support of new buildings above or have had sections destroyed as hills have been removed to allow for new building plots. Quite a large area have also been destroyed by the MTR extension work too.
CEDD lists a total of 34 ARP tunnels, although some have either been completely destroyed, were never built or have been lost. There are 9 where no information exists.

I'll put them up in the order that I've done them, with whatever information I have been able to uncover for each one.

First up was Network 11 Leighton Hill. Around 620m of the original 1265m of tunnels remain, they are 2.4-3.5m wide and 2m high.

Helpfully there are survey plans placed at most of the tunnel junctions.

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The black sections on the first plan are unfortunately no longer accessible. Walking around the perimeter of the hill it is still sometimes possible to see where the portals to these tunnels would have been.

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Some are more obvious than others.

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I may or may not have accidentally locked a group of high school students inside this one over night..

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Inside, the tunnels are in good condition and are dry with good ventilation, something that can't be said for any of the other ones I have done since.

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There is also the only one I have found so far with two levels.

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There is even a Doulton flushing toilet, although this is probably a later addition.

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The original toilet blocks were most likely a lot less luxurious.

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There are two vent shaft remaining, but any machinery is long since gone.

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Also, fuck that ladder!

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drhowser

Bespectacled & irrelevant
Regular User
Next was Network 9

420m remain from an original 555 with a width between 2.5-6m and a height between 2-2.7m. Only one portal remains for this network although there is a ventilation shaft where you can feel the incredibly humid air escaping.
This was both one of the more interesting networks and also hugely frustrating. It was so humid that it was almost impossible to photograph. I will have to return when the weather is dryer and hope that things have improved.

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Where as the previous tunnels were built from reinforced concrete, this network has been blasted straight out of rock. In places it was possible to see the bore holes where charges would have been placed. This is also the network rumoured to have been used as an interrogation/torture centre by the japanese. There is a story locally of the door being opened for a CEDD inspection and a huge gust of foul gas (or evil spirit, if you speak to the locals) was expelled, leading to the workers refusing to enter until a blessing ceremony had been performed.

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There is a lot of evidence of reinforcing work throughout the tunnels.

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The latrine area here was interesting, I'm not sure if it is original, but I can't find any reference to this network being used after the war. There was another Doulton toilet here too, but the humidity had defeated me by that point.

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Hopefully I will be able to expand on this one at a later date.
 

obscurity

Flaxenation of the G!!!
Regular User
loving the look of these, thanks for posting mate, can't beat a good set of tunnels. :thumb
 

drhowser

Bespectacled & irrelevant
Regular User
By now I was starting to actually research these, instead of just trying doors as I spotted them around the city. Obviously that means looking for the biggest possible with hopefully the most interesting things left behind.
That lead me to start looking for a way into networks 5,6,7 and 14, which were all connected and originally included around 2.5km of tunnels over three levels with 30m between the upper and lower sections, these were linked by a shaft with a staircase.
I'm sure you can imagine the excitement when I found these plans online!

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Starting with network 6, I found portals 21-27 were now along a tiny back alley behind a row of shops.

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Unfortunately they all looked like these- very much sealed without a door left. One has the signs of an attempt to chisel through the concrete, but whoever it was gave up after about 30cm or so..

It's interesting to see the original portal structures left behind though, the concrete pillars on either side of the portals would have held a metal gate, rollers at the top of each pillar allowed them to be raised and lowered using ropes. it seem strange that the portals were never protected against bombs falling close by, they were either a metal grate or chain link hung over frames.

From network 6 it is uphill to network 7, but again almost no sign remains here. Only a fraction of the top of portal 30 can be found. I didn't even bother taking a picture there. I also later learnt that the shaft linking the two was backfilled some time ago meaning that although both networks are apparently there, there is no way into either.

Network 5 has also almost completely disappeared too, I didn't find a single portal remaining here, but a huge high-rise apartment complex and shopping mall have been built directly over where it was.

There is a decent view from the top, but that's not what I was after now.

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That only left network 14, and after most of a day failing in the heat and humidity, I didn't have much hope.

Portal 7

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Portal 8

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Finally there was a way in, another steel door that should have been padlocked but happily no longer was.

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Inside was again very humid and damp with a pretty worrying musty smell. Helpfully there was another survey plan just inside the entrance.

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Worryingly this warns of snakes, scorpions and marsh gas! Good times.

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The tunnels close to the portal all show signs of being reinforced at some time or other, possibly the cast concrete lintels are original, but I have no way to find out.

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Heading further back into the network it is now raw stone with the charge holes visible everywhere. I thing this network was never actually finished before the Japanese invaded,

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A lot of the dead ends were starting too have extremely stale air in, both myself and the guy i was exploring with had noted that we were often starting to be short of breath and were proceeding slowly and very carefully. There hadn't been any sign of bad eggs, but we had found one place where gas of some kind was bubbling up through the water in the tunnel bottom.

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Heading up into the tunnel marked j in the photo above, I walked up a slight incline and turned around to take a shot looking back down, when I realised that I was starting to have tunnel vision and my hearing was sounding really echoey. Grabbing my camera I rushed back down and hurried back to a part with ventilation from outside. No idea what the problem was, but after a couple of minutes I was fine again.

Continuing on to the far side of the network leads to this.

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In for a penny in for a pound I guess.

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These are looking towards point 17 on the survey plan, so there are a couple more tunnels beyond here, I didn't go any further this time though as the water was already waist deep.​
 

drhowser

Bespectacled & irrelevant
Regular User
Fantastic stuff mate..




Yeah that happens mate i wouldn't worry about it too much :D

The locking in part genuinely was an accident, but apparently there were 30 odd students who realised they couldn't get out at around 3am and began phoning friends and family to come and let them out :D

Fantastic stuff, as a lover of good deep shelters, it is great to seem foreign (colonial) versions

They've all been really different so far, and best thing is I've got probably another 20 to keep me busy!

Great stuff Doc! Bit of a playground over there it seems.

There's loads of stuff out here that just seems to get very little attention, I guess there's no market for dangling shoes over muddy puddles though.
 

mw0sec

28DL Full Member
28DL Full Member
Very nice work. Refreshing to see an establishment not yet enhanced by the graffiti (so-called) artists!
 

drhowser

Bespectacled & irrelevant
Regular User
Thanks everyone, glad you're enjoying them! It's kind of snowballed now from 'I ought to check them out' to the full pokemon..

Next to go was network 23, Old Main Street Aberdeen. CEDD records show that there were originally 680m of tunnels from 2-5.6m wide and 1.7-2.3m high. They are listed as partially backfilled with 470m now accessible. I'm was particularly happy that there was plenty of cool fresh air coming out of the portal here, so no gas or blacking out this time.
Aberdeen is on the far southern side of the island, at the opposite side the invading Japanese. Possibly this explains why it looks so unfinished. The tunnels here have again been blasted straight out of the rock with no signs of the walls or ceiling being finished or even a floor laid down.
I would estimate that the bottom section between portals 124 and 120 was passable before another skyscraper above has lead to the tunnels being concreted off again.

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The only remaining portals are 123 and 116, there are a couple of places where it is possible to see the remains of other portals, but the majority have been completely removed.

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Portal 116. Although not locked, this wouldn't budge. I'm checking it from time to time, so hopefully it will end up open at a later date.


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Looking back towards portal 123.

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And the view facing the other way into the tunnels. Happily the water isn't ever more than knee deep.

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Above is the bricked up back of portal 124.

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Heading slightly uphill it starts to become a little dryer before predictably reaching a variety of blockages and backfill.

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Hopefully the eastern side will open up soon and I'll have a chance to check the other half out too.



 
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