The work will be carried out throughout the weekend and will affect trains on Saturday and Sunday (April 5 and April 6).
We have outlined and simplified the details so you can plan your journey.
Saturday and Sunday (April 5 and April 6):
Engineering work is taking place in the London Victoria area, closing all lines used by Southeastern.
Trains between London Victoria and Ramsgate or Dover Priory via Chatham will run from London Cannon Street instead and run nonstop between London Bridge and St Mary Cray or Swanley.
On Saturday, stopping services which only run between London Victoria and Gillingham via Denmark Hill will not run.
Trains between London Victoria and Dover Priory via Chatham will run from London Cannon Street and will run nonstop between London Bridge and Bromley South.
On Sunday, trains between London Victoria and Ramsgate or Dover Priory via Chatham will only run between London Cannon Street and Gillingham because of further engineering work.
Saturday (April 5):
Trains between London Victoria and Ashford International via Maidstone East will run from London Charing Cross and run nonstop between London Bridge and St Mary Cray.
Sunday (April 6):
Trains between London Victoria and Ashford International via Maidstone East will run from London Cannon Street, and run non stop between London Bridge and St Mary Cray.
Bromley South Line: Trains between London Victoria and Orpington will run from London Blackfriars, calling additionally at Elephant and Castle.
Brixton station will be closed all day.
Bexleyheath Line: Trains between London Victoria and Gravesend via Bexleyheath will not run.
Additional trains will run between London Charing Cross and Dartford via Bexleyheath.
On Saturday only, additional trains will run between London Blackfriars and Orpington via Denmark Hill, Lewisham and Bromley South.
Sunday (April 6):
Engineering work is taking place between Gillingham and Faversham all day, and all routes through Sittingbourne, including the Sheerness line will be closed.
Sole Street Line: Trains between London Victoria and Ramsgate or Dover Priory via Chatham will only run between London Cannon Street and Gillingham.
These trains will run from London Cannon Street because of further engineering work at London Victoria.
Highspeed via Gravesend: Trains between London St Pancras International and Ramsgate via Faversham will only run between London St Pancras International and Gillingham.
Sheerness Line: Trains between Sittingbourne and Sheerness-on-Sea will not run.
Engineering work is taking place between Ladywell and Hayes, closing all lines.
Trains between London Charing Cross and Hayes will not run.
Replacement buses will run between Lewisham and Hayes calling at all stations and additionally at Beckenham Junction for connections to and from London Blackfriars.
