Buses replace late night / early morning trains between Swansea / Llanelli and Carmarthen from Monday 2 to Friday 6 March
Engineering work details
Starts Monday 02 March 2026 to Friday 06 March 2026
Train operators affected
Route(s) affected
Between Shrewsbury / Swansea / Cardiff Central and Carmarthen
Description
Engineering work is taking place overnight between Llanelli and Pembrey & Burry Port, closing some lines.
Rail replacement buses will operate between Swansea and Carmarthen between 23:45 and 06:30 each night.
Some buses will also operate between Llanelli and Carmarthen to connect to the Heart of Wales line.
The 04:46 Carmarthen to Shrewsbury service will start from Swansea at 04:54.
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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