Future engineering work

PAGE LAST UPDATED: 12/12/2018 01:35. 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 service between London Paddington and Reading on Sunday 21 October

Start date
21/10/2018  00:00
End date
Route affected
Download map of route afected

Trains between London Paddington and Reading / Didcot Parkway, and between Twyford and Henley-on-Thames

TOC(s) affected
Great Western Railway

Engineering work is taking place between Slough and Twyford, closing 2 out of 4 lines until 22:15, and between Slough and Reading after this time.

High Speed Trains:

From midday, some High Speed Trains to Cheltenham Spa / Bristol Temple Meads / Weston-Super-Mare / Penzance / Exeter St Davids will be re-timed to depart a few minutes later than usual from London Paddington.

Maidenhead until 10:50:

Some local trains between London Paddington and Reading / Didcot Parkway will operate in two-parts: London Paddington to Maidenhead, and between Maidenhead and Reading. It will be necessary to change trains at Maidenhead.


From approximately 11:30 until 21:00, local trains between London Paddington and Reading / Didcot Parkway will be retimed by up to 5 minutes between Slough and Reading.

From approximately 15:15 until 20:00, some local trains between London Paddington and Didcot Parkway will not call at Burnham. Customers should use other alternative trains.


Local trains between Twyford and Henley-on-Thames will be retimed by a few minutes.

Other services

The 06:45 London Paddington to Reading train will not run. Customers should use earlier TfL Rail services to Hayes & Harlington to connect with a replacement bus service, departing at 07:05  to Reading.

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%.