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Amended Transport for Wales service in the Swansea / Carmarthen from Monday 23 to Friday 27 February  

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Engineering work details

Starts Monday 23 February 2026 to Friday 27 February 2026

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Train operators affected

Route(s) affected

Between Manchester Piccadilly / Shrewsbury and Swansea, and between Cardiff Central and Carmarthen / Fishguard Harbour, and also between Swansea and Carmarthen / Llandovery.

Description

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

Monday to Thursday:

  • The 18:35 Shrewsbury to Swansea service will run up to 15 minutes earlier between Llandeilo and Swansea

  • The 21:46 Fishguard Harbour to Cardiff Central service will be diverted via the Swansea District Line

  • The 23:20 Cardiff Central to Carmarthen service will be diverted via the Swansea District Line. Rail replacement buses will run between Port Talbot Parkway and Swansea and also between Swansea and Carmarthen

  • 23:48 Swansea to Carmarthen service will not run and will be bus replaced throughout

Tuesday to Friday:

  • The 04:38 Carmarthen to Swansea service will not run and will be bus replaced throughout

  • The 05:13 Swansea to Llandovery service will now start from Llanelli at 05:27. An earlier rail replacement bus will operate at 04:55 from Swansea, arriving to Llanelli at 05:25

  • The 05:43 Swansea to Manchester Piccadilly service will now start from Cardiff Central at 06:46. An earlier rail replacement bus will operate at 04:49 from Swansea, arriving to Cardiff Central at 06:36 to connect with the train

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 our Rail Replacement Services page.

You can find the pick-up and set-down location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.

Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.

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