Last updated:Today at 00:23
Train companies affected:National Rail
Last updated:Today at 00:15
Train companies affected:CrossCountry
Starts Monday 15 September 2025 to Friday 19 September 2025
Transport for Wales between Shrewsbury / Cardiff Central / Swansea and Carmarthen
Engineering work is taking place between Swansea and Carmarthen, closing all lines overnight from Monday evening until Friday morning.
Between 23:59 and 06:00 each night, buses will replace trains between Swansea / Llanelli and Carmarthen.
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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