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Track renewals and maintenance work: buses replace trains between Pembroke Dock and Carmarthen / Swansea from Saturday 7 to Friday 13 November 

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Engineering work details

Starts Saturday 07 November 2026 to Friday 13 November 2026

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Train operators affected

  • Transport for Wales

Route(s) affected

Between Pembroke Dock and Whitland / Carmarthen / Swansea / Cardiff Central / Manchester Piccadilly

Description

Engineering work is taking place between Pembroke Dock and Whitland, closing all lines. Background information on the work can be found below.

From Saturday 7 to Friday 13 November, buses will replace trains between Pembroke Dock and Carmarthen.

Background information:

During the line closure, engineers will carry out a significant programme of essential track renewal and maintenance work, including:

  • Renewing around 1,800 metres of track and approximately 500 metres of additional rail

  • Replacing switches, crossings and supporting bearers at Tenby

  • Installing around 900 metres of new rail at Llanion (Pembroke) and converting the track from jointed rail to continuously welded rail

  • Vegetation management along the route and additional maintenance

The work will replace track and components which have reached the end of their operational life, helping to keep the railway safe and reliable for passengers. More information is available on the Network Rail website.

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 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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