Buses replace trains between Pontypridd and Treherbert from 23:40 on Thursday 30 July to Saturday 15 August
Engineering work details
Starts Thursday 30 July 2026 to Saturday 15 August 2026
Train operators affected
Route(s) affected
Between Cardiff Central and Treherbert
Description
Engineering work is taking place between Pontypridd and Treherbert, closing all lines.
Thursday 30 July:
The 23:00 Cardiff Central to Treherbert service will terminate at Pontypridd. A replacement bus will depart at 23:40 to Treherbert.
Friday 31 July to Thursday 6 August:
Buses will replace trains between Pontypridd and Treherbert.
Friday 7 to Saturday 15 August:
The engineering work will be extended to Radyr, meaning that buses will replace trains between:
Radyr and Treherbert
Radyr and Aberdare
Radyr and Merthyr Tydfil
Additionally there will be an all day bus shuttle between Abercynon and Mountain Ash due to the fact that Penrhiwceiber station is inacessible to standard rail replacement vehicles.
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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