|
|
Post by martinkeegan on Dec 8, 2010 15:21:25 GMT
After Leaving Finsbury Park going eastbound to Cockfosters on the Left handside there is a partial disused tunnel which is bricked up with no access to find out what it is........ ANY IDEAS Please
thank you
|
|
mrfs42
71E25683904T 172E6538094T
Big Hair Day
Posts: 5,922
|
Post by mrfs42 on Dec 8, 2010 15:30:00 GMT
Off the top of my head, I think it is connected with the 1932 extensions.
I might be getting confused with Liverpool Street (the same happened there), but the siding and their lengths swapped around a fair bit during the construction.
|
|
|
|
Post by Dmitri on Dec 8, 2010 15:36:42 GMT
Can't it be traces of the 1964-68 reconfiguration to facilitate cross-platform interchange between Picc and Vic?
|
|
mrfs42
71E25683904T 172E6538094T
Big Hair Day
Posts: 5,922
|
Post by mrfs42 on Dec 8, 2010 16:08:52 GMT
Can't it be traces of the 1964-68 reconfiguration to facilitate cross-platform interchange between Picc and Vic? Not eastwards of Finsbury Park, after leaving the platform - the Victoria connections are to the west of the platforms. On the approaches to Finsbury Park from Cockfosters, there is a step-plate junction which moved the Piccadilly 'across' one platform. |
|
North End
Beneath Newington Causeway
Posts: 1,769
|
Post by North End on Dec 8, 2010 17:06:17 GMT
After Leaving Finsbury Park going eastbound to Cockfosters on the Left handside there is a partial disused tunnel which is bricked up with no access to find out what it is........ ANY IDEAS Please thank you I've always wondered about this, it's not shown on any of the tunnel plans I have. I've always *assumed* it was some kind of original overrun tunnel, which wasn't on a suitable alignment for the Cockfosters extension (which curves sharply east towards Manor House, rather than following the GNR mainline which the original GNP&BR route followed from King's Cross to Finsbury Pk). |
|
|
|
Post by v52gc on Dec 23, 2010 10:01:12 GMT
I was told it was made to dig an experimental tunnel from there and the experimental bit is what is sealed off. Something to do with planning for the Victoria construction methods. I suppose doing it so close to the platform gave easier access?
The only physical alterations to tunnelling on the Pic to do with the actual Victoria Line at Finsbury Park is on the W/B.
|
|
|
|
Post by railtechnician on Dec 23, 2010 14:41:46 GMT
I was told it was made to dig an experimental tunnel from there and the experimental bit is what is sealed off. Something to do with planning for the Victoria construction methods. I suppose doing it so close to the platform gave easier access? The only physical alterations to tunnelling on the Pic to do with the actual Victoria Line at Finsbury Park is on the W/B. The original Victoria line test bore tunnel was from Finsbury Park to Manor House and I have always assumed it was part of that. In the eastbound Picc tunnel towards Manor House there are a number of bolt holes sealed with corrugated steel sheet which appear to be accesses to another tunnel to the left and slightly below but I was never able to discover whether they were originally access ways to the Victoria running tunnel(s) or something else. |
|
Ben
fotopic... whats that?
Posts: 4,282 
|
Post by Ben on Dec 24, 2010 16:47:24 GMT
The vic tunnels were driven from the NCL tunnels at Finsbury Pk.
This is something that track plans just never show, where former sidings/crossings were located in tunnels.
|
|
|
|
Post by electricmole on Dec 26, 2010 22:44:06 GMT
Given that Finsbury Park was a terminus for a long time I would suggest that this was access to a tunnel siding. After all there wasn't a lot of space on the Picc, just the terminal platforms at Hammersmith and the loop, apart from Lillie Bridge. Did they also stable a train at Holborn on the branch?
|
|
mrfs42
71E25683904T 172E6538094T
Big Hair Day
Posts: 5,922
|
Post by mrfs42 on Dec 27, 2010 0:06:01 GMT
Given that Finsbury Park was a terminus for a long time I would suggest that this was access to a tunnel siding. After all there wasn't a lot of space on the Picc, just the terminal platforms at Hammersmith and the loop, apart from Lillie Bridge. Did they also stable a train at Holborn on the branch? Ah, well at opening the entire length of the overrruns at Finsbury Park were in the same track circuit as the platforms, plus there was a siding at Hammersmith to hold some stock. By 1916 the WTTs had 2 cars stabling in the interpeaks in the overruns, plus a bit of stabling in the sidings at Barons Court and Hammersmith. By 1932 (the extension of service to South Harrow) [WTT 122 4/6/32] there were 9 trains starting at Finsbury Park in the morning. Obviously by then the overruns had been extended somewhat... *just had a thought* Bingo! (well, sort of) I've just found the 1931 Traffic Notice when Finsbury Park was resignalled at the end of the west-to-east resignalling in preparation for the northern and western extensions, and at least one of the overruns was extended. More (maybe) on the morrow - need a bit more digging around the library... |
|
