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OK, tired of waiting; time for action.

Attached Images
2 sm.jpg (102.6 KB, 1738 downloads)
Pinzgauer briefs the crew
1 sm.jpg (97.55 KB, 1735 downloads)
Start excavating
3 sm.jpg (93.43 KB, 1741 downloads)
Now be careful
4 sm.jpg (104.86 KB, 1733 downloads)
The concrete cap broken up
5 sm.jpg (100.39 KB, 1728 downloads)
One of the walls exposed
6 sm.jpg (101.69 KB, 1739 downloads)
BREAKTHROUGH
7 sm.jpg (102.24 KB, 1735 downloads)
Measuring the depth
8 sm.jpg (104.9 KB, 1725 downloads)
6.5 metres to the first landing
9 sm.jpg (98.65 KB, 1710 downloads)
A job well done

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Now the full story. On Friday I went up to Birkenhead & met Pinzgauer & his mine exploring mate Graham. After looking at various sites in Liverpool & resolving some questions about Green Lane station, we were headed for Woodside. Pinzgauer decided it would be fun to drive up the steepest street in Birkenhead; Holborn Hill. As we reached the top, we saw some new building at the end of the alleyway leading to Thompson St. this, of course, is where one of the ventilation/access shafts to the tunnels was. We parked up & wandered over. As we were surveying the site of the shaft, we saw that they were digging a trench for sewers on the line of the shaft & that a very thick reinforced concrete slab had been broken up, which we knew must be the capping of the shaft. As we were looking, one of the guys came over to the fence & asked us why we seemed so interested. We told him about the shaft & warned him about a possible collapse. He let us inside the fence & we described what we knew. He was as interested as we were & didn't take much persuading to dig some more. As the pictures in my previous post show, we succeeded in opening it up. All this was pure luck; if we hadn't decided to drive up Holborn Hill, or if we had been a day earlier or later, we would have missed this opportunity.

As far as technical details are concerned, the shaft would have been the same as at Bidston. It measured 6 feet square internally & the walls were about 13 inches thick. There's a picture of a similar one in my earlier thread. Pinzgauer, who had explored the tunnels as a child, can't remember whether there were 3 or 4 landings, but each was about 6.5 metres, so the total depth would be 19.5 or 26 metres.


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Well done Chris & Pinzgauer.

Good of the builders to let you in, dig a bit further and help take measurements thumbsup

Were you not tempted to drop a camera down and try and get some inside pictures?

Very lucky with the opportunity.

I'm curious as to what questions you resolved about Green Lane station too?


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excellent stuff guys,what a stroke of luck thumbsup


It all makes perfect sense expressed in dollars and cents ,pound shillings and pence
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Originally Posted by BMW Joe


I'm curious as to what questions you resolved about Green Lane station too?


Joe; just updated the Green Lane thread in the History forum & no, there's no way I was going to risk my camera by dropping it into that hole frown


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Wow thanks for sharing Kris,

What a stroke of luck, of all the days and the people to
be passing the Tranmere Tunnels with.
What a stroke of Luck.

Great Pictures there Kris.
They look in very good nick from those pictures.

Huge Thanks for Sharing the pictures and the moment Kris.
You lucky Sods smile

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ooooooooooooooooooo, exciting stuff, lets go in.....


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Excellent Chris smile


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Thanks, Jonno.


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Well, I was back there again yesterday & today. The shaft has now been opened up completely. They wouldn't let me down because their Health & Safety guy was on site, but I managed to get a pic. This shaft only goes down 21 Ft. & the base is solid sandstone. At the bottom, from the corner nearest the alley & on the Holborn Hill side, a passage goes towards the different concrete in the alley (shown on page 3 in a post by Waddi, where he pinched my pictures) wink This is the bottom right corner in the pic. From there, the shaft goes down to the bottom, via 3 or 4 landings. The theory is that the shaft was sunk from the alley (which is where I remember a building) & then the lateral tunnel & the shaft we can now see were built. This is where Pinzgauer remembers it. When I remember it, they were still constructing, because I remember hearing explosions. When it was completed, they capped the shaft in the alley, to restore the full width.
My contact wasn't there today, but he's promised to get some pics for me. One of his mates said that after I'd left yesterday, he went down all the way to the bottom. This was perhaps not as risky as it seems, since from the first breakthrough on Friday, we could detect a draught, so I guess there must be air bricks at Holborn Square. Rather him than me though.
I'm attaching some plans; the one I've written on shows the arrangement. The others are some old plans which I couldn't make sense of before, but now I think it shows the passage dotted.
If my contact sends me any pics, I'll post them here.

Cheers, Chris.

Attached Images
21' deep shaft sm.jpg (95.98 KB, 1723 downloads)
shaft plan sm.jpg (89.23 KB, 1722 downloads)
plan sm.jpg (86.42 KB, 1726 downloads)
plan close up sm.jpg (84.03 KB, 1703 downloads)

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is there any chance of us mere mortals getting a looksie down the shaft, this could be our 1 and only chance of getting in this tunnels.


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There is a chance; depends on who's around. I had hoped to get down today. Because I live so far away, I won't be coming up again, but if one or two of you were to wander up & show interest, you never know. It's not just a matter of climbing down the ladder, which stops about 5 feet from the top, so you have to get them to put another ladder there. If you printed off my latest photo & waved it, it might help.

Please heed Pinzgauer's warning about bad air. Even though my contact has been in, I wouldn't risk it.

Good luck. Chris.


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Anyone up for popping along tomorrow? I may well be...

smile

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Good luck, Matt. The workmen there all seem pretty friendly.


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Browsing in the reference library the other day, I came across some newspaper articles about the tunnels; a couple about children playing in there (tut tut Pinzgauer).

Attached Images
tunnels 1.JPG (670.77 KB, 1814 downloads)
tunnels 3.JPG (1019.7 KB, 1782 downloads)
tunnels 2.JPG (571.55 KB, 1762 downloads)

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