Furthest point below the Underground

Status
Not open for further replies.

TheNewNo2

Member
Joined
31 Mar 2015
Messages
1,006
Location
Canary Wharf
I took a walk today along the Northern Heights from Alexandra Palace to Edgware. Very nice, and along the way I walked under the Dollis Brook Viaduct, which, as everyone knows, is the highest point above ground level that the tube reaches (18m).

This set me wondering. By walking under it, I was 18m below the tube, but how far below the tube can one be?

So, here's the challenge. Where in London can one get, via tunnels presumably, more than 18m below a tube line? I'd imagine that the Victoria going under the SSL would have a good shot.
 
Sponsor Post - registered members do not see these adverts; click here to register, or click here to log in
R

RailUK Forums

jopsuk

Veteran Member
Joined
13 May 2008
Messages
12,593
Where in London can one get, via tunnels presumably, more than 18m below a tube line? I'd imagine that the Victoria going under the SSL would have a good shot.

Underground line (including SSL) or Tube?
 

Ianno87

Veteran Member
Joined
3 May 2015
Messages
13,398
What about being on HS1, passing below either the Central Line (at Stratford) or District Line (at Barking).

Also, Heathrow Express tunnels underneath Piccadilly Line mught be a contender.
 

jopsuk

Veteran Member
Joined
13 May 2008
Messages
12,593
There's a list of heights above sea level of all LU platforms here: https://www.ianvisits.co.uk/blog/2011/07/01/how-deep-is-every-tube-station-on-the-underground.

Jubilee at Westminster was my first thought. That's if being on one line below another is allowed.

If it is, then using that data (with its rather odd datum- I guess to avoid negative numbers as many platforms are below sea level) then the track level of the westbound Jubilee at Westminster is 24.4m below the District Line.

In fact, hell, we've got MAX and MIN functions in Excel. So then, greater than 18m difference:

Kings Cross St Pancras
Met/Circle/H&C 109.1m Northern 88.9m Difference 20.2m

Moorgate
Met/Circle/H&C 108.5m Northern Northbound 88.7m Difference 19.8m

Notting Hill Gate
District/Circle 119.4m Central Eastbound 97.1m Difference 22.3m

Waterloo
W&C 98.2m Jubilee 74.0m Difference 24.2m

Westminster
District/Circle 99.0m Jubilee Westbound 74.6m Difference 24.4m

Jubilee at Waterloo is furthest below sea level at 74 above datum- that's -26m. Metropolitan at Amersham is 249.3m above datum, a positively mountainous 149.3m above sea level- the Shard is 309.6m to the tip. The difference between the highest platform track and lowest is 175.3m
 

D Foster

Member
Joined
5 Jan 2016
Messages
152
Location
N Staffs
I suspect that the London water-main ring tunnel is the deepest under London. Does the Underground cross over it on one of its "tentacles"?

One would, of course, need a snorkel... :D
 

TheNewNo2

Member
Joined
31 Mar 2015
Messages
1,006
Location
Canary Wharf
I suspect that the London water-main ring tunnel is the deepest under London. Does the Underground cross over it on one of its "tentacles"?

One would, of course, need a snorkel... :D

I'll allow that - I think the rule should be that one could, in principle, stand in the tunnel, so no 6" electrical pipes.
 

DynamicSpirit

Established Member
Joined
12 Apr 2012
Messages
5,241
Does being on a boat count? If so, I gather there would be a whole range of locations in the southern Pacific ocean that would be a full 12800 km below the Underground! :)

If any commercial airlines happen to fly over the vicinity, you might be able to add a further 10 km or so!
 
Last edited:

HMS Ark Royal

Established Member
Joined
2 Sep 2015
Messages
2,811
Location
Hull
What about Bull & Bush (originally to be named North End) - if we count unfinished stations
 
Status
Not open for further replies.

Top