Future engineering work

PAGE LAST UPDATED: 19/09/2018 19:54. 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 Great Western Railway services in the Cardiff Central area on Sunday 5 August

Start date
05/08/2018  00:00
End date
Route affected
Download map of route afected

Between London Paddington / Bristol Temple Meads / Portsmouth Harbour / Brighton and Cardiff Central / Swansea / Carmarthen

TOC(s) affected
Great Western Railway

Engineering work is taking place all day between Newport and Cardiff Central and also until 09:00 between Bridgend and Swansea, resulting in closing some lines.

Most trains between Cardiff Central and Bristol Temple Meads / Portsmouth Harbour / Brighton and also between London Paddington and Swansea / Carmarthen will be retimed by a few minutes between Cardiff Central and Newport.

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.

Project Information:

You can read more about engineering work and why it is necessary.