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Wednesday 29 Apr 2026

Cambrian line upgrades this May to prepare for new trains and improve reliability

Region & Route:

Wales & Western: Wales & Borders

Passengers are advised of temporary service changes while Network Rail carries out essential infrastructure improvements ahead of new trains entering service later this year.

Rail passengers travelling between mid-Wales and the Borders this May are encouraged to plan ahead, as essential engineering works will affect services between Aberystwyth, Shrewsbury, Llandrindod and Hereford. 

Network Rail will carry out infrastructure improvements on the Cambrian line between Shrewsbury, Aberystwyth and Machynlleth from Friday 8 May until Friday 22 May.  

Services between Llandrindod, Hereford and Shrewsbury will be affected on Saturday 9 and Sunday 10 May 

The work is important to prepare the Cambrian line for the introduction of Class 197 trains on the Cambrian line later this year, and will help maintain a safe and reliable railway for both passenger and freight services in the future.

The programme of work has been carefully planned to minimise disruption, with the line set to fully reopen in time for the May half term.

The work will include:

• Track renewal at Montgomery
• Level crossing renewals at Llanidloes Road, Caersws and Llanbadarn Fawr
• Bridge refurbishment work in Shrewsbury
• Land and drainage improvements near Dol-y-Bont, Fronfraith and Llanbadarn
• General maintenance and vegetation management across multiple locations

Gwyn Rees, Programme Director at Network Rail Wales and Borders, said: “These essential upgrades will help us maintain a safe and reliable railway for passengers and freight services across mid Wales and the Borders. We’ve carefully planned this work to minimise disruption, wherever possible, with the line due to fully reopen in time for the May half term.

“We’d like to thank passengers for their patience while we carry out these important improvements.”

During this period TfW has organised rail replacement buses to ensure customers can continue to travel, including dedicated services to support local schools and colleges along the affected routes.

Colin Lea, Planning and Performance Director at Transport for Wales, said: “We know this will be a disruptive period for customers travelling across mid-Wales and the borders, and we’d like to thank everyone for their patience while these essential improvements are carried out.

“With different sections of the railway closed on different days between 8 and 22 May, it’s really important that customers travelling between Aberystwyth, Pwllheli, Shrewsbury, Hereford and Llandrindod plan ahead and check their journey before travelling, using our website or app.

“These upgrades are a vital step towards introducing our brand-new Class 197 trains on the Cambrian line later this year, which will bring improved comfort and capacity for customers.”