Future engineering work

PAGE LAST UPDATED: 19/03/2019 02:03. 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 Great Western Railway services to and from London Paddington until 14:00 on Sunday 8 July

Start date
08/07/2018  00:00
End date
Route affected
Download map of route afected

All routes to and from London Paddington

TOC(s) affected
Great Western Railway

Engineering work is taking place between Cholsey and Swindon, also between Severn Tunnel and Newport, closing some lines.

The following alterations will apply:

Great Western will run an amended service between London Paddington and the South West of England.

Trains to / from London Paddington will divert not calling at Didcot Parkway, Swindon or Chippenham until 14:00. Hourly buses will run between Reading / Didcot Parkway and Swindon.

Some services may be cancelled throughout.

Road transport will operate between Reading, Swindon and Didcot Parkway.

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%.