
Originally Posted by
fortinian
The 'hole' in the railway wall that you mention is probably the original chamber that housed 'Ramsbottoms Chimney' which was a huge venilator fan to allow the smoke and steam from locomotives to escape.
You might not be aware that the railway was originally a tunnel and only opened out into a cutting in the 1880s, so a good vent system would be in place.
The Ramsbottom vent shaft was not a success. It had a steam powered fan. With some accidents and two much smoke in the Lime St tunnel, parts were made into a wide cutting.
Much of these cuttings can be filled in today to have buildings on them once again. The walls around the cuttings are boring and lifeless from street level.
From Science and society site. Extending the width of the Lime Street tunnel/cuttings:

You can see the tunnel and where parts were cut away to make open air cuttings. Parts of the tunnel were left in place where roads crossed the tunnel/cutting, creating deep natural rock bridges.

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Below is the existing tunnel, and all around where they have widened and made the large cutting quadrupling the tracks. The brick lining of the existing old tunnel can be seen, as they dismantle it opening it up into the surrounding big cutting. It was quite clever what they did.
Mike Turner posted these links a while back:
http://www.yoliverpool.com/forum/roa...tml#post120630
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