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Buses replace trains to / from Portsmouth Harbour on Saturday 30 and Sunday 31 January 

See all service disruptions

Engineering work details

Starts Saturday 30 January 2027 to Sunday 31 January 2027

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Train operators affected

  • Great Western Railway
  • South Western Railway
  • Southern

Route(s) affected

Great Western Railway between Cardiff Central / Bristol Temple Meads and Portsmouth Harbour

South Western railway between London Waterloo and Portsmouth Harbour

Southern between London Victoria / Horsham / Brighton / Littlehampton / Barnham and Portsmouth & Southsea / Portsmouth Harbour, between Gatwick Airport and Portsmouth Harbour, and also between Haywards Heath and Portsmouth & Southsea

Description

Engineering work is taking place between Cosham and Portsmouth Harbour, closing some lines.

Great Western Railway:

Trains between Cardiff Central / Bristol Temple Meads / Westbury and Portsmouth Harbour will terminate / start at Fareham.

Replacement buses will operate between Fareham and Portsmouth Harbour.

Additionally:

  • On Saturday the 20:30 Cardiff Central to Portsmouth Harbour service will terminate at Westbury. For travel beyond Westbury, you can travel on alternative earlier Great Western Railway services at no extra cost

  • On Sunday the 19:34 Bristol Temple Meads to Portsmouth Harbour service will terminate at Westbury. For travel beyond Westbury, you can travel on alternative Great Western Railway services at no extra cost

South Western Railway:

Buses will replace trains between Fareham / Havant and Portsmouth Harbour all weekend.

Southern:

It is not yet known how Southern are affected by these works.

Check before you travel:

If you are travelling with Great Western Railway or South Western Railway, you can plan your journey using the National Rail Journey Planner.

If you are travelling with Southern, these changes are not currently shown in the National Rail Journey Planner, please check back nearer to the time of travel.

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 drop-off 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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