Friday 28th March - Normal service until 10am.
10am - 11:30am - no trains to/from London Bridge.

Planned changes in the evening rush hour that impact Forest Hill:
1736 London Bridge to West Croydon – will start from New Cross Gate at 1741. Passengers should travel on the 1729 London Bridge to Guildford train which will call additionally at New Cross Gate. This train will be re-timed to leave London Bridge at 1728.

But it is possible that problems will be greater as all services will be operating from just four platforms.

Saturday 29th - Sunday 30th March
No Southern trains to/from London Bridge via any Southern Service route.

Overground (via Canada Water) will continue to run normally on all days.

Full details at http://www.southernrailway.com/southern/...-31-march/