Future engineering work

PAGE LAST UPDATED: 16/01/2019 20:50. 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 late night / early morning trains between Carmarthen and Swansea from Monday 14 to Friday 18 May

Start date
14/05/2018  00:00
End date
Route affected

between Manchester Piccadilly / Crewe / Swansea and Carmarthen / Fishguard Harbour / Pembroke Dock 

TOC(s) affected
Transport for Wales

Engineering work is taking place overnight in the Swansea area from Monday evening to Friday morning.

Monday to Thursday:

The 19:30 Manchester Piccadilly to Carmarthen will be diverted, and will not call at stations between Port Talbot Parkway and Carmarthen. A replacement bus will run from Port Talbot Parkway to Carmarthen, calling at all booked stations.

The 22:14 Fishguard to Swansea service terminates at Llanelli. A replacement bus will run between Llanelli and Swansea.

Tuesday to Friday:

The 03:03 Carmarthen to Swansea service will not run. A replacement bus will run between Carmarthen and Swansea.

The 05:45 Swansea to Pembroke Dock service will start from Llanelli. A replacement bus will run from Swansea to Llanelli.

The 06:04 Swansea to Crewe service starts from Llanelli at 06:25. A replacement bus will run from Swansea to Llanelli to connect with this service.

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.