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Last updated:Today at 22:31
Train companies affected:Avanti West Coast, Northern, TransPennine Express
Last updated:Today at 21:29
Train companies affected:Avanti West Coast, London Northwestern Railway, Caledonian Sleeper

Rhymney line transformation: Buses replace trains between Caerphilly and Rhymney from Saturday 19 July to Sunday 31 August 

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Engineering work details

Starts 19 Jul 2025 to 31 Aug 2025

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Train operators affected

Route(s) affected

all routes to / from / via Caerphilly

Description

Engineering work is taking place between Caerphilly and Rhymney, closing all lines from Saturday 19 July to Sunday 31 August (except Friday 1 August when lines are open for an event).

For the duration, when the lines are closed, buses will replace trains between Caerphilly and Rhymney, calling at all stations.

Background Information:

The Rhymney line is being upgraded as part of the next phase of the South Wales Metro. This six-week line closure is part of an intensive 8-month programme of engineering work on the upper Rhymney line, from Caerphilly to Rhymney.

The work taking place includes installing Overhead Line Equipment (OLE) to electrify the line, upgrading the track and signalling, and making station and infrastructure improvements. This will allow the introduction of brand-new tri-mode trains onto the Rhymney line, powered by electricity from the OLE, battery and diesel.

More information on this significant work is available on the Transport for Wales 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 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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