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Upgrading the railway in the Wessex and South Coast area

Network Rail is carrying out infrastructure improvements as well as essential maintenance of the region's railway to help provide better and faster journeys.

Wessex and South Cost GWR route map

Rail improvement work is planned during the autumn on the Heart of Wessex route serving Weymouth.

This is for track renewal and essential maintenance to be carried out by Network Rail to help maintain rail connections between Somerset and Dorset.

Signalling and track upgrades are also taking place that will affect trains in the Southampton and Portsmouth areas.

Impact on train services

The impact on Great Western Railway services will be as follows:

Rail improvement work will also affect the following train services:

  • Southampton Central to Portsmouth Harbour – Monday 12 to Friday 16 February
  • Portsmouth & Southsea to Portsmouth Harbour – Monday 26 February to Friday 1 March
  • Yeovil Pen Mill to Weymouth – Saturday 16 to Sunday 31 March 

Check before you travel

Online timetables may not be amended until a few weeks before planned disruption, so please check your journey details as close to your date of travel as possible.

Check your journey

Using one of our rail replacement services?

Don’t forget, space is limited on buses/coaches compared to trains, so please don’t bring:
  • large items of luggage
  • bikes (excluding folding bikes)
  • dogs (excluding assistance dogs)

Pushchairs must be folded up and stored as luggage.

Help with your journey

It’s best to let us know in advance if you need help. To find out more, visit

Please note there are no lifts available at Castle Cary station for any customers requiring step-free access for platforms 2 or 3.