Future engineering work

PAGE LAST UPDATED: 24/10/2021 12:33. 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.

Buses replace trains between Bristol Parkway and Newport on Saturday 23 and Sunday 24 October

Start date
End date
Route affected

Between London Paddington and Swansea / Carmarthen also between Portsmouth Harbour / Taunton and Cardiff Central

TOC(s) affected
Great Western Railway

Engineering work is taking place between Bristol Parkway and Severn Tunnel Junction, closing all lines.

Buses will replace trains between Newport and Bristol Parkway, with both fast and stopping buses being available.

Trains between London Paddington and Swansea will be diverted between Swindon and Gloucester, and will not call at Bristol Parkway. Most trains that usually run to / from Carmarthen will be amended to run to / from Swansea instead. A few trains will still run to / from Carmarthen If you are travelling between Swansea and Carmarthen, you should use alternative Transport for Wales services instead.

Trains that usually run between Cardiff Central and Portsmouth Harbour will be amended to run between Bristol Parkway and Portsmouth Harbour. Trains that usually run between Cardiff Central and Taunton will be amended to run between Bristol Temple Meads and Taunton only.

Check before you travel:

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

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.