Future engineering work

PAGE LAST UPDATED: 21/05/2019 17:56. 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.

No trains at Swansea on Saturday 9 and Sunday 10 March

Start date
09/03/2019  00:00
End date
Route affected
Download map of route afected

Great Western Railway between London Paddington and Swansea / Carmarthen

Transport for Wales between Crewe / Manchester Piccadilly and Carmarthen / Milford Haven and between Cardiff Central and Swansea / Pembroke Dock / Milford Haven / Llanelli and between Gloucester and Fishguard Harbour and between Manchester Piccadilly and Tenby

TOC(s) affected
Great Western RailwayTransport for Wales

Engineering work is taking place in the Swansea area, closing some lines.

Trains will be diverted via the District Line and will be unable to call at Swansea.

Great Western Railway:

Most services between London Paddington and Swansea / Carmarthen will be revised to start / terminate at Port Talbot Parkway.

Customers wishing to travel to Neath may use Transport for Wales services.

Replacement road transport will operate direct from Port Talbot Parkway to Swansea. Please note that buses will be required to leave earlier than normal train times to maintain connections at Port Talbot Parkway.

Transport for Wales

Buses will replace trains between Swansea and Carmarthen, connecting with train services.

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:

This major upgrade project includes a new signalling system between Cockett Tunnel (west of Swansea Station) and Baglan (west of Port Talbot), as well as upgrading track, power supplies and telecoms equipment. This will increase the resilience, flexibility and reliability of the railway in South Wales.