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Buses replace late night / early morning service between Haverfordwest and Carmarthen from Monday 21 to Wednesday 23 December 

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Engineering work details

Starts Monday 21 December 2026 to Wednesday 23 December 2026

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Train operators affected

  • Transport for Wales

Route(s) affected

Between Milford Haven and Carmarthen

Description

Engineering work is taking place between Haverfordwest and Carmarthen, closing some lines overnight.

On Monday and Tuesday evenings, the 23:26 Milford Haven to Carmarthen service will terminate at Haverfordwest. A rail replacement bus will run from Haverfordwest to Carmarthen, departing at 23:51.

On Tuesday and Wednesday mornings, the 04:49 Carmarthen to Milford Haven service will start from Haverfordwest at 05:32. A rail replacement bus will run from Cheltenham Spa to Severn Tunnel Junction, departing earlier at 04:07.

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 drop-off 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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