Amended early morning Transport for Wales service between Carmarthen and Swansea on Thursday 11 and Friday 12 December
Engineering work details
Starts Thursday 11 December 2025 to Friday 12 December 2025
Train operators affected
Route(s) affected
Between Carmarthen and Swansea / Cardiff Central / Shrewsbury
Description
Engineering work is taking place between Carmarthen and Swansea, closing some lines until 06:00 on Thursday 11 and Friday 12 December.
The 04:38 Carmarthen to Swansea service will not run. Rail replacement transport will run between Carmarthen and Swansea, leaving earlier at 04:09. It will call at Pembrey & Burry Port, Llanelli and Swansea.
The 04:47 Carmarthen to Shrewsbury service will not run. Rail replacement transport will run between Carmarthen and Llanelli, leaving at 04:10. It will call at Pembrey & Burry Port and Llanelli.
The 05:40 Carmarthen to Cardiff Central service will be diverted between Carmarthen and Swansea. Departure times between Carmarthen and Swansea will be altered as a result.
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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