From TfL.
From 2100 Thursday 9 until 1700 Wednesday 15 May, Routes 176 and 197 will be diverted towards Penge / Croydon, between Lordship Lane, Wood Vale and Sydenham, Woodman. Bus stops B E and F at Forest Hill Station will be closed to all routes.
Bus stop B is the one outside Santander for routes 185 and 356, E is the 122 bus stop outside Barclays and F is the 122, 185 and 356 directly outside the station.
The traffic camera there is online and you can see what it's like before setting out. http://www.bbc.co.uk/travelnews/london/t...0000103756