Bolton - Salford Crescent Electrification.

[Inox]

have a look at this photo to see about clearance.

http://www.djibnet.com/photo/farnworth+tunnel/farnworth-4448014072.html

you have to squint, but you can see the gap at the top of the train.

 

[ole man]

From going off the picture the clearance looks very tight, but it's like all picture's they can be decieving.
We have just run new OLE at Bedford and the last road bridge was to small and lowering the track wasn't a option, so we run a earthed section on OLE, trains now using this section have to use rear pan's, that would'nt be possible at this location.
The only way to find out is take reading's of the tunnel roof, which somebody at Network Rail will have somewhere

 

[driver9000]

Yep, I know, thought it was just the narrow bore we where refering to.

Fair enough, I thought you meant both bores as you said tunnels.

 

[Inox]

three quarters of the way down the page.

http://www.lancashire.gov.uk/environment/historichighways/maa666.asp

 

[ole man]

Looking at the better picture, the bigger of the tunnels would have no problem at all, was it two track at some time?
The narrower tunnel is the opposite, it looks to tight to have the standard bridge arms most tunnels have.Also apart from having catenary wires up, it must have either Return Conductor wire or Earth wire installed.
Though as previously stated i don't know the height/clearance

 

[Xenophon PCDGS]

Looking at the better picture, the bigger of the tunnels would have no problem at all, was it two track at some time?

I had made a posting upon this thread some days ago, when I gave the history of both these two tunnels. The larger one was the original two-track tunnel that was used until the Lancashire and Yorkshire Railway decided to build a parallel single bore tunnel in the 1880 period, making both tunnels single track running.
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three quarters of the way down the page.

http://www.lancashire.gov.uk/environment/historichighways/maa666.asp

Thank you posting this link which I decided to read in full, finding it extremely well written. I noted that when the graveyard was in need of the approved specialist contractors to disinter the remains, it was the London Necropolis company who did this and I believe that this company had its own railway connections in Victorian times.