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Pont Briwet to be closed to trains until 2015 [Update - now reopened as of Sept 2014]

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merlodlliw

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An amazing Christmas present to Bus Companies, NR paying ATW £10K a day for loss of service compensation, plus NR paying for the buses.What a gift to Berlin.
In other words a shambles that needs sorting.

http://www.dailypost.co.uk/news/north-wales-news/pont-briwet-closed-trains-until-6445894

Eryl Crump said:
BUSES will replace trains on a vital railway link until a new bridge over the Afon Dwyryd is completed in 2015, Network Rail has confirmed.

Detailed examinations have established piling work in the river bed for the new Pont Dwyryd crossing is significantly affecting the structural capability of the wooden viaduct it is replacing making it impractical to run trains during the remainder of the construction works.

Mark Langman, route managing director for Wales said: “We fully understand the inconvenience this will cause and we apologise for this.

“However, the safe operation of the railway is our absolute priority.

“Following the examinations, we found the only option to complete the new bridge was to keep the railway line closed until the new structure is in place.

“We will work closely with Gwynedd Council and its contractor so the new bridge can be completed as soon as possible so that rail services can resume”.

The line has been closed since early November after monitoring equipment detected movement to Pont Briwet viaduct during construction works for the replacement bridge.

The bridge was scheduled to remain open whilst the new bridge was constructed immediately alongside it.

Youngsters use the train service to go to school and the closure of the bridge means an eight-zmile detour through Maentwrog.

Parents and other commuters, already angry the bridge would be closed over Christmas, are furious the bridge will closed for more than 18 months.

One said: “There was every likelihood of this happening from the moment the piledrivers started work. Network Rail should have foreseen this in their planning for this project. I’m disgusted they put the news out just before Christmas.”

Cllr, Gareth Thomas, who represents Penrhyndeudraeth on Gwynedd Council said: “Residents and business owners are aware of the on-going safety issues in relation to the bridge, and closing the bridge for such a long period of time due to the holiday period, causes grave difficulties in the locality.”

The original Pont Briwet crossing is a wooden viaduct built in the 1860s.

The new bridge will be a modern structure capable of carrying heavier trains at a faster speed, as well as a new road crossing.

Until the new bridge is opened, Arriva Trains Wales will be running an amended timetable. All (northbound) services from Machynlleth will now terminate at Harlech.

Buses will take people on to stations towards Penrhyndeudraeth, Porthmadog, Criccieth and Pwllheli.

Passengers are advised to check with National Rail Enquiries for detailed, up to date information.
 
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gnolife

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The routing guide changes and now this!? Merry <edited out> Christmas to you too train companies...
 

Holly

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BUSES will replace trains on a vital railway link until a new bridge over the Afon Dwyryd is completed in 2015, Network Rail has confirmed.
An amazing Christmas present to Bus Companies, NR paying ATW £10K a day for loss of service compensation, plus NR paying for the buses.What a gift to Berlin.

If it's going to be closed that long isn't there time to install a temporary crossing? A Bailey bridge or an aerial tramway perhaps?
 

merlodlliw

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If it's going to be closed that long isn't there time to install a temporary crossing? A Bailey bridge or an aerial tramway perhaps?

We are dealing with devolved Network Rail Wales,who appear not to have a clue.in my opinion sloppy engineering is to blame,I am not an engineer but pile driving next to a 100 year old plus wooden structure should have sent out alarm bells,so whats the easy option now , cancel all trains for two years.
This should have been sorted long before the job started. Another nail in the Cambrian Coast holiday market.
 
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PHILIPE

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We already have a thread on this on the Discussion Board:-

www,railforums.co.uk/showthread.php?t=80851

However, under the circumstances in view of this latest info I think we should continue with this one as it is better suited to the Infrastructure Board.
 

yorksrob

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If it's going to be closed that long isn't there time to install a temporary crossing? A Bailey bridge or an aerial tramway perhaps?

Or at the very least, finding a way to run trains up to Landecwyn, rather than terminating them at Harlech.
 

Gathursty

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Mmm, I'd agree with Harlech. Beyond there is Tygwyn which is a bit too close to the main road and has no place to pull in for the station. Talsarnau would require trains to cross the A496 and might be too small a platform, although it has a car park in keeping with the local population.
 

jones_bangor

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ATW need to get a 153 on a low loader to Pwllheli pronto to setup a Penrhyndeudraeth - Pwllheli shuttle.....
 

headshot119

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Can't do that due to ERTMS. However, it would be self contained, but doubt the rule book would allow

Simple find the newest chair, cut the leg off, take a marker pen, write Penrhyndeudraeth - Pwllheli on it. Add a temporary stop board, sorted!
 

Rich McLean

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Simple find the newest chair, cut the leg off, take a marker pen, write Penrhyndeudraeth - Pwllheli on it. Add a temporary stop board, sorted!

Sounds simple. Except for maintainance. Would this cost less than hiring buses than getting a weekly low loader to swap units around
 

Rich McLean

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Are you sure about that: I think it can be done - however, I'd need to double check the scheme plan; moreover temporary balises can be installed to protect the obstruction.

It's the cost of moving a 153 to and throw each week in order for maintenance to take place which isn't going to be easy
 

Chrisgr31

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If the railway line is shut anyway does these mean the works to replace the bridge can actually be done quicker?
 

HSTEd

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Are you sure about that: I think it can be done - however, I'd need to double check the scheme plan; moreover temporary balises can be installed to protect the obstruction.

Forget the ERTMS system.
The section beyond the bridge would be operated as One-train-in-Steam.
Find a random unit that doesn't even have ERTMS installed and put in a couple of temporary TPWS loops at the ends of the route.

But this costs money, much cheaper to have a bus service.

Why not simply close the line and replace it with a bus?
 

Tomnick

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Forget the ERTMS system.
The section beyond the bridge would be operated as One-train-in-Steam.
Find a random unit that doesn't even have ERTMS installed and put in a couple of temporary TPWS loops at the ends of the route.
Why not use the existing signalling arrangements? Changing the method of signalling has various implications - different signalling regs would apply (which the signalmen probably wouldn't be competent to work to), the Sectional Appendix would need to be changed, some things (such as the WHR crossing?) would still need protection by the signalling system...and so on. Sounds like a lot of complications in pursuit of simplicity!
 

Uranquinty

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Forget the ERTMS system.
The section beyond the bridge would be operated as One-train-in-Steam.
Find a random unit that doesn't even have ERTMS installed and put in a couple of temporary TPWS loops at the ends of the route.

Yes - that's fine and dandy within reason for the northern section. Temporary balises would still be needed for the southern approach and a temporary method of working would need to be agreed for Cae Pawb.

But this costs money, much cheaper to have a bus service.

Why not simply close the line and replace it with a bus?

Golly, that's a bit of whiffy bait.

Because the changes to the signalling would cost less than the sum total of the bus for that duration?
 
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Gareth Marston

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The 2015 date is of the Daily Posts making. NR press release only says until new bridge is built which my sources say the contractor is being leant on heavily to speed up.
 

SWTH

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Hire in a Heritage loco and push pull stock.
2 coaches maybe and see if the enthusiast market makes it worthwhile.

You still have the servicing issue, and running something push-pull capable (can't think of anything available to use off-hand) would almost certainly be much more expensive per mile than a 158. I doubt the enthusiast market would cover operation of that kind of service for more than a week or two before the novelty wears off.
 

merlodlliw

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The 2015 date is of the Daily Posts making. NR press release only says until new bridge is built which my sources say the contractor is being leant on heavily to speed up.

here it is http://www.networkrailmediacentre.c...ges-to-rail-services-at-Pont-Briwet-1f6c.aspx

Its a kind of burying bad news day,releasing the story the day before Xmas Eve.
2015 I am told is also coming from the County Council,I dont think Eryl Crump the Daily Post senior travel reporter,who understands Railways better than any other hack in North Wales will have made up 2015(only a year away),Network Rail saying "Until the Bridge is open") is shooting itself in the other foot.
Its an appalling situation,after the ERTMS years late fiasco on the line.
 
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Harlesden

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How many miles will this new bridge be?
According to a BBC article, Network Rail were describing it back in 2010 as "a robust integrated transport infrastructure fit for the 21st century and beyond".
Is a single track and a two lane highway really adequate?
 

yorkie

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How many miles will this new bridge be?
According to a BBC article, Network Rail were describing it back in 2010 as "a robust integrated transport infrastructure fit for the 21st century and beyond".
Is a single track and a two lane highway really adequate?
I've edited the original post to include a hyperlink, where you'll find some photos.

The bridge appears to have a different name on Google Maps.
 

DarloRich

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We are dealing with devolved Network Rail Wales,who appear not to have a clue.in my opinion sloppy engineering is to blame,I am not an engineer but pile driving next to a 100 year old plus wooden structure should have sent out alarm bells,so whats the easy option now , cancel all trains for two years.
This should have been sorted long before the job started. Another nail in the Cambrian Coast holiday market.

And yet no doubt you and many others would have been shouting just as loudly had the bridge been closed earlier to allow replacement. In trying to offer a service and keep people moving things have gone wrong. Dammed if you do and dammed if you dont!
 
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