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Old October 15th, 2006, 08:40 PM   #1
Norbb
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MISC | Maximum depths of stations and tunnels

I am interested in the maximum depths mass transit achieves in your city. Wheter it is a river, cellars, ancient ruins or other subway lines - there may be various reasons for subway (or similar like RER) lines or stations to go exceptionally deep.

I will start off with my city, as I usually tend to do:



Vienna

deepest tunnel: approx. 28m below the street, subway line U1, between Karlsplatz and Stephansplatz stations
reason: deep, multi-story cellars in the historical center

deepest station: depth 24,7m at Karlsplatz, platform of subway line U1
reason: the need to dive under 2 other subway lines and an underground river




Here you can see how the U1 (red) dives under the U2 (purple), U4 (green) and the underground Vienna River at a depth of 24,7m. Diagonal lines are some of the escalators, vertical lines are elevators and orange is the colour of passages and other stories reachable by passengers.





The highest escalator - at 49m length it helps you over a height difference of 19,5m.



I am looking forward to some interesting information from YOU!
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Old October 15th, 2006, 08:59 PM   #2
sturman
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OK, 73 m for a station (Park Pobedy) and about 80 m for a tunnel in Moscow; 102 m for a tunnel and yet-not-opend station (Admiralteyskaya) in Sankt-Peterburg.

All figures show depth of rail head.
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Old October 15th, 2006, 09:54 PM   #3
coth
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PP afaik is -84m, not -73m.
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Old October 15th, 2006, 10:13 PM   #4
pflo777
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munich:

40 m for the second s-bahn tunnel
40 m also for the maglev tunnel
Both still have to be built
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Old October 16th, 2006, 01:34 AM   #5
sturman
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coth - no, -73 m ± 1 m.
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Old October 16th, 2006, 02:22 AM   #6
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official site says it is -84m. and i have never heard about 7x figure.
http://www.mosmetro.ru/pages/page_0.php?id_page=99

vlad has same data
http://metro.molot.ru/facts.shtml

so as urbanrail have -86m figure
http://urbanrail.net/eu/mos/moskva.htm
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Old October 16th, 2006, 02:47 AM   #7
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Deepest Tube station = 58.5m (192ft) Hampstead (Northern Line)

Deepest tunnel = 67.4m (221ft) below Hollybush Hill, Hampstead (Northern Line)

Deepest below Sea Level = -21.3m Waterloo (Northern Line)

The Northern Line reaches some deep depths in the vicinity of Hampstead as the land rises to the hills of Hampstead Heath before dropping steeply to the north... In fact, between Hampstead and Golders Green are the deepest sections of tube followed by a viaduct between Golders Green and Brent Cross as the line crosses the River Brent valley... the land must drop by around 100m in a few kilometres, quite extreme for London.
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Old October 16th, 2006, 09:32 AM   #8
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Deepest station in Tokyo is Roppongi Station on the Toei Oedo Line. The entire Oedo line is deep bore, mostly because there's no room to build any more subways near the surface. They also wanted it to be as earthquake-proof as possible for use in emergencies. Roppongi is one of the taller hills in Tokyo, so it's pretty deep there, at 42 meters.
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Old October 16th, 2006, 12:05 PM   #9
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Nothing much in Amsterdam: the deepest stations are no more than 8 metres underground - same goes for the tracks. But that'll all change when the new North South line will open in 2013, with the deepest station at 26 mtrs below ground level.
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Old October 16th, 2006, 12:15 PM   #10
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Currently, Singapore deepest MRT Station is Dhoby Ghaut (28 m below the street level). Then, followed by Raffles Place MRT Station which is 23 m below the street level.
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Old October 16th, 2006, 12:22 PM   #11
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Quote:
Originally Posted by ryantey View Post
Currently, Singapore deepest MRT Station is Dhoby Ghaut (28 m below the street level). Then, followed by Raffles Place MRT Station which is 23 m below the street level.
To add on, both stations are built deep because they are interchange stations, and newer lines that intersect here go under each other, deeper and deeper. As simple as that.
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Old October 16th, 2006, 12:39 PM   #12
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Quote:
Originally Posted by ignoramus View Post
To add on, both stations are built deep because they are interchange stations, and newer lines that intersect here go under each other, deeper and deeper. As simple as that.
An unusual exception to this rule are the Victoria Line platforms at King's Cross St Pancras (built 1960's), which were squeezed in above the existing Northern and Piccadilly Line platforms (1900's).

Some lines are bored deeper than necessary to avoide other lines / services in order to follow the seam of London clay, which varies in thickness and depth.
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Old October 16th, 2006, 04:55 PM   #13
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Piccadilly Line stations in Central London are very deep underground. I remember taking an elevator from the platform to the course at Gloucester Road.
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Old October 16th, 2006, 07:43 PM   #14
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Quote:
Originally Posted by hkskyline View Post
Piccadilly Line stations in Central London are very deep underground. I remember taking an elevator from the platform to the course at Gloucester Road.
I doubt Gloucester Road is especially deep, but further east platforms like Holborn are very deep indeed; the Central Line platforms are above the Piccadilly Line and even they are very deep... I can only assume the depth at this location is because of the London Clay lying below a deep layer of alluvium.
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Old October 16th, 2006, 09:07 PM   #15
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geez those are some long escalators, we don't have anything like that here...especially the ones in st. petersburg's subway, some of those are practically a commute in itself
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Old October 16th, 2006, 09:41 PM   #16
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I don't know how deep the Hong Kong MTR is but its pretty deep heres some samples:

These escalators are not going straight to the platforms yet theres still one above and below it.





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Old October 17th, 2006, 07:26 AM   #17
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Quarry Bay is the deepest at 45m.
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Old October 18th, 2006, 05:17 PM   #18
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I thought in Hk, Fortress Hill was the deepest?
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Old October 18th, 2006, 11:39 PM   #19
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No, it's Quarry Bay. North Point is the 2nd deepest.
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Old October 19th, 2006, 12:09 AM   #20
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Not really an underground, but...Porta Alpina, 850 m under ground level.
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