Engineering work is taking place between Severn Tunnel Junction and Newport, closing some lines.

Great Western Railway:

Trains from London Paddington to Swansea / Carmarthen will be retimed to arrive / depart Newport slightly later than usual.

Trains from Carmarthen / Swansea to London Paddington will be retimed to depart Swansea / Newport and stations in between a few minutes earlier than usual.

Trains between Portsmouth Harbour / Taunton and Cardiff Central will be retimed to run a few minutes earlier or later than usual at Newport / Cardiff Central.

Additionally:

• The 07:55 Swansea to London Paddington service will start from Cardiff Central. An earlier replacement bus will run from Swansea to Cardiff Central (fast) to connect with the train. A second bus will run from Swansea to Neath, Port Talbot Parkway, Bridgend and Cardiff Central to connect with the train.
• The 08:32 Swansea to London Paddington service will start slightly later than usual, and will run later than usual throughout.
• The 14:13 London Paddington to Cardiff Central service will terminate at Bristol Parkway.
• The 16:50 Cardiff Central to London Paddington service will start from Bristol Parkway.

Transport for Wales:

It is not yet known how Transport for Wales will be affected by this engineering work.

Check before you travel:

If you are travelling with Great Western Railway, you can plan your journey using the National Rail Enquiries Journey Planner

If you are travelling with Transport for Wales, these changes are not currently shown in the National Rail Enquiries Journey Planner, please check back nearer to the time of travel.

Replacement Bus Travel Advice:

For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use this page.

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

Please be advised that, on occasion, replacement vehicles may be busier than usual, and you should allow extra time for your journey.