Future engineering work

PAGE LAST UPDATED: 21/01/2019 16:51. 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 overnight services between Port Talbot and Swansea / Llanelli from Monday 29 October to Friday 2 November

Start date
29/10/2018  00:00
End date
Route affected

Transport for Wales between Fishguard Harbour / Pembroke Dock / Carmarthen and Swansea / Llandovery / Crewe / Manchester Piccadilly

TOC(s) affected
Transport for Wales

Engineering work is taking place overnight between Port Talbot and Swansea, and also between Swansea and Llanelli, closing lines each night from Monday evening until Friday morning.

As a result, the following trains will be amended:

  • The 18:32 Manchester Piccadilly to Carmarthen is diverted between Port Talbot and Llanelli, and will arrive later than usual at Carmarthen.
  • The 19:30 Manchester Piccadilly to Fishguard Harbour is diverted, and will not call at stations between Neath and Llanelli. A replacement bus will run via these stations.
  • The 22:14 Fishguard Harbour to Swansea service will terminate at Llanelli. A replacement bus will run from Llanelli to Swansea.
  • The 00:15 Swansea to Carmarthen service will start from Llanelli at 00:01, and will run earlier to Carmarthen. A replacement bus will run from Swansea to Carmarthen.
  • The 03:03 Carmarthen to Swansea service will be replaced by a bus (please note this will not connect with the usual Swansea to London Paddington service, the next connection is the 04:58 Swansea to London Paddington service).
  • The 04:53 Carmarthen to Llandovery will depart earlier than usual at 04:51.
  • The 05:03 Carmarthen to Manchester Piccadilly service will start earlier from Carmarthen at 04:59.
  • The 05:45 Swansea to Pembroke Dock service starts from Llanelli at 06:05. An earlier bus service will run from Swansea to Llanelli.
  • The 06:04 Swansea to Crewe service will start from Llanelli at 06:25. An earlier bus service will run from Swansea to Llanelli.

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.