Buses replace late night / early morning trains between Swansea / Llanelli and Carmarthen from Monday 5 to Friday 9 January
Engineering work details
Starts Monday 05 January 2026 to Friday 09 January 2026
Train operators affected
Route(s) affected
Transport for Wales between Shrewsbury / Cardiff Central / Swansea and Carmarthen
Description
Engineering work is taking place between Carmarthen and Llanelli, closing various lines overnight from Monday evening until Friday morning.
As a result:
Monday to Thursday:
The 23:20 Cardiff Central to Carmarthen will terminate at Llanelli, with road replacement transport from Llanelli to Carmarthen
Tuesday to Friday:
The 04:38 Carmarthen to Swansea will be cancelled throughout, and replaced with road transport
The 04:46 Carmarthen to Shrewsbury will start from Llanelli at 05:12. Road replacement transport will run from Carmarthen to Llanelli
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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