Future engineering work

PAGE LAST UPDATED: 19/02/2018 16:04. Update now

See details of routes affected by planned engineering works, including when they take effect, maps of the affected area, alternative timetables, advice for alternative travel and real-time updates.

Buses replace trains between Southampton Central / Eastleigh and Portsmouth Harbour on Saturday 24 and Sunday 25 March

Start date
24/03/2018  00:00
End date
Route affected
Download map of route afected

Great Western Railway between Cardiff Central / Worcester / Great Malvern / Westbury and Southampton Central / Portsmouth Harbour / Brighton

South Western Railway between London Waterloo and Portsmouth Harbour; Salisbury and Romsey; and also between Southampton Central and Portsmouth Harbour

Southern between Southampton Central and Brighton / Gatwick Airport / London Victoria

TOC(s) affected
Great Western RailwaySouth Western RailwaySouthern

Engineering work is taking place between St Denys / Eastleigh and Portchester closing the line.

All weekend, buses will replace trains between Southampton Central / Eastleigh and Portsmouth Harbour.

Great Western Railway

Additionally, some trains will start / terminate at Westbury. Customers should use alternative services to / from Portsmouth Harbour. Which means customers may have to use replacement buses to complete their journey.

Customers to / from Brighton should change at Portsmouth Harbour for alternative Southern services to complete their journey.


On Saturday, trains between Southampton Central and London Victoria will run between Portsmouth & Southsea and London Victoria. Replacement buses will run between Southampton Central and Havant.

As a result of this engineering work the train service between Bognor Regis and London Victoria and between Horsham and Portsmouth Harbour will be retimed.

On Sunday, buses will replace trains between Southampton Central and Cosham.

Check before you travel:

These changes are not currently shown in the National Rail Enquiries Journey Planner, please check back nearer to the time of travel.

You can find the location of your bus replacement by typing in your station here.


Non folding bicycles are not allowed on rail replacement bus services at any time. Folding bicycles are allowed if fully folded. For more information, please see here.

Location Map:

For further location information on any railway station, please use this zoomable map

Project Information:

You can read more about engineering work and why it is necessary.