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Last updated:Today at 01:06
Train companies affected:Avanti West Coast, London Northwestern Railway

Amended late night / early morning service between Potters Bar and Welwyn Garden City from Monday 11 to Friday 15 August 

See all service disruptions

Engineering work details

Starts 11 Aug 2025 to 15 Aug 2025

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Train operators affected

Route(s) affected

between Moorgate / London Kings Cross and Welwyn Garden City

Description

Engineering work is taking place between Potters Bar and Welwyn Garden City, closing some lines.

Until approximately 05:15 on Monday, northbound services will be unable to call at Welham Green and southbound services will be unable to call at Welham Green and Hatfield. Replacement bus services will run between Potters Bar / Brookmans Park and Welwyn Garden Ciy.

From approximately 23:10 on Wednesday and Thursday evenings until approximately 05:15 on Thursday and Friday mornings, northbound services will be unable to call at Welham Green and southbound services will be unable to call at Welham Green and Hatfield. Replacement bus services will run between Potters Bar / Brookmans Park and Welwyn Garden Ciy.

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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