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Buses replace trains between New Barnet and Welwyn Garden City and between Hertford North and Stevenage on Sunday 18 January 

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Engineering work details

Starts Sunday 18 January 2026 to Sunday 18 January 2026

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Train operators affected

Route(s) affected

Great Northern between Moorgate / London Kings Cross and Stevenage and also between London Kings Cross and Peterborough / Cambridge

Thameslink between Horsham and Peterborough and between Brighton and Cambridge

Description

Engineering work is taking place between New Barnet and Welwyn Garden City, and between Hertford North and Stevenage, closing some lines.

Trains between London and Cambridge / Peterborough / Kings Lynn will run to a revised service and divert non-stop via Hertford North, with extended journey times.

A revised train service will run between Welwyn Garden City and Cambridge, and between Moorgate and Alexandra Palace / Hertford North / New Barnet.

Rail replacement buses will run between New Barnet and Potters Bar / Welwyn Garden City, and between Hertford North and Stevenage.

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 set-down 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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