Future engineering work

PAGE LAST UPDATED: 21/10/2021 02:45. 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.

Buses replace early morning trains via Potters Bar from Tuesday 28 September to Friday 1 October

Start date
End date
Route affected

Great Northern between Moorgate London Kings Cross and Welwyn Garden City / Kings Lynn

Thameslink between London Kings Cross and Cambridge / Peterborough

TOC(s) affected
Great NorthernThameslink

Engineering work is taking place between Alexandra Palace and Stevenage via Welwyn Garden City, closing all lines early on Tuesday to Friday mornings.

From 00:01 to 05:10 each night, trains that usually run via Potters Bar will be diverted to run via Hertford North.

Replacement buses will run between Alexandra Palace and Welwyn Garden City.

Check before you travel:

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

Although journey planners are showing correctly, your journey may be subject to alteration at short notice due to the Coronavirus outbreak. Please check before your journey.

Replacement Bus Travel Advice:

For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use this page.

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