Train GraphicClick on the map to explore geographics
 
I need help
FAQ
Emergency
About .
Travel & transport from BBC stories as at 01:55 02 Apr 2025
 
- Police shoot man dead at railway station
- Virginia Giuffre grateful for 'love and support' after car crash
Read about the forum [here].
Register [here] - it's free.
What do I gain from registering? [here]
 15/04/25 - End, Rail Future consultation
15/04/25 - Everything Electric
16/04/25 - Walk from Chetnole
10/05/25 - BRTA Westbury

No 'On This Day' events reported for 2nd Apr

Train RunningCancelled
02/04/25 04:45 Redhill to Gatwick Airport
02/04/25 05:11 Gatwick Airport to Reading
20:22 Reading to Shalford
21:30 Shalford to Reading
Delayed
01/04/25 23:45 London Paddington to Penzance
Abbreviation pageAcronymns and abbreviations
Stn ComparatorStation Comparator
Rail newsNews Now - live rail news feed
Site Style 1 2 3 4
Next departures • Bristol Temple MeadsBath SpaChippenhamSwindonDidcot ParkwayReadingLondon PaddingtonMelksham
Exeter St DavidsTauntonWestburyTrowbridgeBristol ParkwayCardiff CentralOxfordCheltenham SpaBirmingham New Street
April 02, 2025, 02:07:01 *
Welcome, Guest. Please login or register.

Login with username, password and session length
Forgotten your username or password? - get a reminder
Most recently liked subjects
[184] On this day. South Australia's triple decker train experiment.
[69] Extreme Day Trips
[44] Press release from Pilning
[26] Easyjet (re)opens Southend Airport operation
[26] Spare parts issue stops trains
[18] It's not the train that's the problem...
 
News: the Great Western Coffee Shop ... keeping you up to date with travel around the South West
 
   Home   Help Search Calendar Login Register  
Pages: 1 ... 7 8 [9]
  Print  
Author Topic: Severn Tunnel - engineering improvements, events, incidents and history - merged posts  (Read 145963 times)
grahame
Administrator
Hero Member
*****
Posts: 43722



View Profile WWW Email
« Reply #120 on: August 15, 2023, 08:14:10 »

https://www.realtimetrains.co.uk/service/gb-nr:K03023/2023-08-14/detailed

5Q86 - Worksop to Sims, Newport.  Empty none-passenger stock.  A withdrawn train with some personality objecting to being taken to the scrapyard?

Pathed as Diesel locomotive, trailing load 600 tonnes
Planned for 75mph max
Logged

Coffee Shop Admin, Chair of Melksham Rail User Group, TravelWatch SouthWest Board Member
grahame
Administrator
Hero Member
*****
Posts: 43722



View Profile WWW Email
« Reply #121 on: August 15, 2023, 09:05:00 »

Journeycheck was showing disruption until 8am, now extended to 10am

And if you read into individual trains you'll find warnings of ongoing disruption.  Everything will not be magically back on time by 10:01!

Quote
11:23 Swansea to London Paddington due 14:14

11:23 Swansea to London Paddington due 14:14 will be starting late from Swansea.
This is due to a broken down train.
Logged

Coffee Shop Admin, Chair of Melksham Rail User Group, TravelWatch SouthWest Board Member
grahame
Administrator
Hero Member
*****
Posts: 43722



View Profile WWW Email
« Reply #122 on: August 15, 2023, 10:24:49 »

Journeycheck was showing disruption until 8am, now extended to 10am

Quote
Cancellations to services between Bristol Parkway and Cardiff Central
Following a broken down train earlier today between Pilning and Severn Tunnel Jn the line will be reopened shortly. Disruption is expected until 11:00 15/08.
Train services between Bristol Parkway and Cardiff Central are returning to normal but some services may still be cancelled or delayed.
Logged

Coffee Shop Admin, Chair of Melksham Rail User Group, TravelWatch SouthWest Board Member
grahame
Administrator
Hero Member
*****
Posts: 43722



View Profile WWW Email
« Reply #123 on: December 01, 2023, 09:17:05 »

From Wikipedia

Quote
Structurally completed during 1885, the first passenger train was run through the tunnel on 1 December 1886, nearly 14 years after the commencement of work.
« Last Edit: December 01, 2023, 21:47:21 by grahame » Logged

Coffee Shop Admin, Chair of Melksham Rail User Group, TravelWatch SouthWest Board Member
JayMac
Data Manager
Hero Member
******
Posts: 19293



View Profile
« Reply #124 on: May 02, 2024, 22:02:24 »

The Severn Tunnel was closed late afternoon, 2nd May 2024 after a passing train driver noticed water shooting out from the tunnel wall on the up side approximately 1/4 mile from the Welsh portal.

Inspections confirmed water ingress and some dislodged brickwork.

Lots of cancellations to regional services with some London<>Wales services diverted via Lydney.

The tunnel reopened around 9.45pm. Down services at line speed. Up services cautioned through the affected area.
Logged

"Good news for regular users of Euston Station in London! One day they will die. Then they won't have to go to Euston Station ever again." - David Mitchell
broadgage
Transport Scholar
Hero Member
******
Posts: 5661



View Profile
« Reply #125 on: May 03, 2024, 04:54:58 »

Only very recently, I said

"I have no problem with crossing a properly built UK (United Kingdom) bridge, but would be reluctant to cross the improvised looking suspension bridges that are common overseas.
I would certainly avoid bridges with a glass deck as have recently become popular, and I avoided the glass floor at Paddington station.
Waterloo bridge made me a bit nervous in extreme high winds, because the railings looked too low, and I had a fear of being blown over the railings and into the water to a certain death. I took care to only use the upwind walkway in extreme weather, or to take a taxi.
I once knew someone with a phobia about crossing the Thames or any other large body of water by bridge, that was understandable as they had survived an oil rig disaster.

I have a slight fear of deep tunnels under water, lest they suddenly flood. The SEVERN TUNNEL is the worst due to the vast amount of water that enters and the requirement for continual pumping.
Not very keen on the older tube tunnels under the Thames either.
No problem with the channel tunnel as it is newer and well built."
« Last Edit: May 03, 2024, 07:00:20 by broadgage » Logged

A proper intercity train has a minimum of 8 coaches, gangwayed throughout, with first at one end, and a full sized buffet car between first and standard.
It has space for cycles, surfboards,luggage etc.
A 5 car DMU (Diesel Multiple Unit) is not a proper inter-city train. The 5+5 and 9 car DMUs are almost as bad.
Noggin
Hero Member
*****
Posts: 575


View Profile
« Reply #126 on: May 03, 2024, 09:06:28 »

Only very recently, I said

"I have no problem with crossing a properly built UK (United Kingdom) bridge, but would be reluctant to cross the improvised looking suspension bridges that are common overseas.
I would certainly avoid bridges with a glass deck as have recently become popular, and I avoided the glass floor at Paddington station.
Waterloo bridge made me a bit nervous in extreme high winds, because the railings looked too low, and I had a fear of being blown over the railings and into the water to a certain death. I took care to only use the upwind walkway in extreme weather, or to take a taxi.
I once knew someone with a phobia about crossing the Thames or any other large body of water by bridge, that was understandable as they had survived an oil rig disaster.

I have a slight fear of deep tunnels under water, lest they suddenly flood. The SEVERN TUNNEL is the worst due to the vast amount of water that enters and the requirement for continual pumping.
Not very keen on the older tube tunnels under the Thames either.
No problem with the channel tunnel as it is newer and well built."


Slightly off-topic but IIRC (if I recall/remember/read correctly) there's at least one toll bridge in the US where if you are afraid of heights, there's the option for you and your vehicle to be driven across by their staff.

Personally I'm more nervous about fellow travellers
Logged
bobm
Administrator
Hero Member
*****
Posts: 10218



View Profile
« Reply #127 on: May 03, 2024, 10:01:06 »

I wondered which tunnel it was.   Grin

Logged
Mark A
Global Moderator
Hero Member
*****
Posts: 1907


View Profile
« Reply #128 on: May 03, 2024, 14:31:51 »

As it happens, Network Rail have today tweeted a link to a short video on their pump renewal work to keep the tunnel reliably dry. Presumably those pumps will today be adding the small additional ingress from whatever it was managed to pop through the lining at the Welsh end of the structure to their day-to-day load.

The Wikipedia article on the Severn Tunnel quotes 26 minutes between complete cessation of pumping and "The tunnel being full of water" which sounds a bit gloomy. There's no source for that figure, 26 minutes might just be the time for the water to rise above rail level perhaps.

Interesting paper from 1970 on the source of the Great Spring:

https://www.ubss.org.uk/resources/proceedings/vol12/UBSS_Proc_12_2_203-212.pdf

Mark

https://twitter.com/networkrail/status/1786375113962619160
Logged
Do you have something you would like to add to this thread, or would you like to raise a new question at the Coffee Shop? Please [register] (it is free) if you have not done so before, or login (at the top of this page) if you already have an account - we would love to read what you have to say!

You can find out more about how this forum works [here] - that will link you to a copy of the forum agreement that you can read before you join, and tell you very much more about how we operate. We are an independent forum, provided and run by customers of Great Western Railway, for customers of Great Western Railway and we welcome railway professionals as members too, in either a personal or official capacity. Views expressed in posts are not necessarily the views of the operators of the forum.

As well as posting messages onto existing threads, and starting new subjects, members can communicate with each other through personal messages if they wish. And once members have made a certain number of posts, they will automatically be admitted to the "frequent posters club", where subjects not-for-public-domain are discussed; anything from the occasional rant to meetups we may be having ...

 
Pages: 1 ... 7 8 [9]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.2 | SMF © 2006-2007, Simple Machines LLC Valid XHTML 1.0! Valid CSS!
This forum is provided by customers of Great Western Railway (formerly First Great Western), and the views expressed are those of the individual posters concerned. Visit www.gwr.com for the official Great Western Railway website. Please contact the administrators of this site if you feel that the content provided by one of our posters contravenes our posting rules via admin@railcustomer.info. Full legal statement (here).

Jump to top of pageJump to Forum Home Page