Originally Posted by
SKie
Its probably the heading/flying junction that was constructed during the building of the loop & link to enable a connection south of central to one or more of the disused tunnels so the northern line could run to edge hill with extra underground stations along the way.
Martin S knows more than me. Its a relatively hidden and unknown part of the system, same with the header built between hamilton square and James Street for a connection to the docks.
SKie, I think it was a 1970s construction. I recall (dim memory) that they started the Edge Hill Spur to connect onto the Wapping Tunnel, as a part of the Outer Loop to make north and south loops from the centre outwards and back, but abandoned the idea. That cannot be a big job to re-start and why it is not being re-started when the city is expanding is beyond me.
Originally the Birkenhead to Liverppool rail tunnel was to have a branch before James St stn that went to Huskisson Dock. They stared it and it ran for a number of yards. I used to go to Birkenhead a lot and used James St to Birkenhead Central. I recall seeing it through the dark and always wondered what it was.
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I think it was eventually used in the Loop Line of the 1970s.
Lifted from one of your posts. This thread:
here It shows the spur from Central that would connect onto the Wapping Tunnel for the "Edge Hill Spur". The diagram shows two schemes. One using the Wapping Tunnel and one using the Waterloo Tunnel:
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