Future engineering work

PAGE LAST UPDATED: 24/05/2018 14:55. Update now

See details of routes affected by planned engineering works, including when they take effect, maps of the affected area, alternative timetables, advice for alternative travel and real-time updates.

Amended late night Great Western Railway service to and from London Paddington from Monday 26 to Friday 30 March

Start date
26/03/2018  00:00
End date
Route affected

'High Speed' trains between London Paddington and Bristol Temple Meads / Taunton / Exeter St Davids / Penzance / Cardiff Central / Swansea

'Thames Valley' trains between London Paddington and Reading

TOC(s) affected
Great Western Railway

Engineering work is taking place between Swindon and Bristol, closing lines via Bristol Parkway and Chippenham.

Monday and Tuesday night:

The following High Speed trains will divert between Reading and Bath Spa / Bristol Parkway, not calling at Didcot Parkway, Swindon and Chippenham:

  • 17:42 Penzance to London Paddington
  • 19:29 Swansea to London Paddington
  • 20:29 Swansea to London Paddington
  • Bristol Temple Meads to London Paddington
  • 21:15 London Paddington to Swansea
  • 21:27 Taunton to London Paddington
  • 21:45 London Paddington to Exeter St Davids
  • 22:15 London Paddington to Bristol Temple Meads
  • 22:45 London Paddington to Swansea
  • 23:30 London Paddington to Cardiff

The 20:45 London Paddington to Bristol Temple Meads will not run.

Road transport will be provided between Reading / Didcot Parkway and Swindon / Chippenham where required. Some buses will be extended to call at stations via Kemble to Cheltenham Spa / Bath Spa.

Some late evening trains will call additionally at Didcot Parkway, Bath Spa and Bristol Temple Meads.

Additional trains will run between Chippenham, Bath Spa and Bristol Temple Meads.

Monday to Thursday:

The 22:01 Reading to London Paddington service will not call at Langley and Iver. Customers should use alternative services that do call at the stations.

Check before you travel:

You can plan your journey using the National Rail Enquiries Journey Planner

You can find the location of your bus replacement by checking station signs or by searching for your station on our station information pages


Non folding bicycles are not allowed on rail replacement bus services at any time. Folding bicycles are allowed if fully folded. For more information, please see here.

Project Information:

The Great Western Route Modernisation project is the biggest investment in the Great Western railway since Brunel built it more than 150 years ago. Modernising the route will improve the experience of everyone who uses it and stimulate economic growth in the South West and beyond.

Network Rail are electrifying one of Britain's oldest and busiest railways, providing greener, more reliable journeys and improving connections across southern England and South Wales: London and Bristol, including Cardiff, Newbury and Oxford. This project is also part of the London Railway Upgrade Plan, creating new connections and increasing capacity in peak hour by 30%.