Future engineering work

PAGE LAST UPDATED: 26/05/2019 22:29. Update now

See details of routes affected by planned engineering works, including when they take effect, maps of the affected area, alternative timetables, advice for alternative travel and real-time updates.

Amended service between Newport and Cardiff Central from 23:45 on Saturday 30 and all day on Sunday 31 March

Start date
30/03/2019  00:00
End date
Route affected
Download map of route afected

CrossCountry between Nottingham / Birmingham New Street and Cardiff Central

Great Western Railway between London Paddington and Swansea / Carmarthen, and also between Brighton / Portsmouth Harbour / Bristol Temple Meads and Cardiff Central

Transport for Wales between Manchester Piccadilly / Gloucester / Cheltenham Spa and Cardiff Central / Fishguard Harbour / Milford Haven

TOC(s) affected
CrossCountryGreat Western RailwayTransport for Wales

Engineering work is taking place between Newport and Cardiff Central, closing all lines.


Buses will replace trains between Newport and Cardiff Central.

Great Western Railway

On Saturday evening, the 19:23 Portsmouth Harbour to Cardiff Central service will terminate at Newport. Alternative rail services are available between Newport and Cardiff Central.

All day Sunday, buses will replace trains between Newport and Cardiff Central, taking approximately 40 minutes. Some trains will also be amended to start from or terminate at Bristol Temple Meads / Bristol Parkway.

High Speed Trains will be replaced by road transport between Newport and Bridgend. Some late evening buses will be extended to Swansea.

Transport for Wales


Until 12:30:

Trains towards Swansea / Carmarthen will operate to and from Bridgend, with a replacement bus service operating between Bridgend and Cardiff Central via Pontyclun.

Valley lines services will be affected as follows:

  • Rhymney / Ystrad Mynach services will run to and from Cardiff Bay.
  • Barry Island / Bridgend services will run to and from Ninian Park. A replacement bus services will be running between Cogan and Cardiff Central.

From 12:30:

Valley lines services will run as normal but some may use Platform 8, allowing mainline services to use Platform 6 at Cardiff Central.

The following alterations will be in place:

  • Ebbw Vale Town services will be diverted to Newport, with bus connections to / from Cardiff Central at Pye Corner.
  • Cardiff Central to Gloucester / Cheltenham Spa services will start / terminate at Newport.
  • Trains towards Swansea / Carmarthen will operate to and from Cardiff Central but will be diverted via an alternative route.

Check before you travel:

You can plan your journey using the National Rail Enquiries Journey Planner

You can find the location of your bus replacement by checking station signs or by searching for your station on our station information pages


Non folding bicycles are not allowed on rail replacement bus services at any time. Folding bicycles are allowed if fully folded. For more information, please see here.