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Reduced late night / early morning service to / from Welham Green / Hatfield from Monday 12 to Friday 16 January 

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Engineering work details

Starts Monday 12 January 2026 to Friday 16 January 2026

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Train operators affected

Route(s) affected

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

Description

Engineering work is taking place overnight between Potters Bar and Hatfield, closing some lines.

At the end of Monday to Thursday service. Northbound services will be unable to call at Welham Green.

Rail replacement buses will run between Potters Bar and Hatfield / Welwyn Garden City.

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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