Lead or Rumour info - Underground thing in Liverpool

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Cave Monster
28DL Full Member
Feb 18, 2011
Here's the photo for ease of reference:

The thing about that area of Liverpool is that the land closest to the river now used to be the actual river, hence the name Mann Island, all around Castle Street and James Street was a tidal inlet surrounding what was the old Liverpool Castle. Like this:

And this is how the road system in the 17th and 18th centuries intersect with the original land reclamation:

so really I think it's highly probable that Liverpool's got quite a few underground Vaults where it's easier to build up over the original rather than just straight down


28DL Regular User
Regular User
Aug 23, 2017
Thanks for the info - I had a quick look on the way back from work and there are dozens of manhole covers in the general area where this vault is supposed to be. No idea what sorts these are, but some clearly haven't been opened for a long time.

The Lone Ranger

Safety is paramount!
Staff member
Photo 2 looks very much like what lies under the Georges Dock Building, which is next door to Mann Island. Was lucky enough to have a look in here a few years back, there was the remains of an old row boat bobbing about at the time.