Engineering work is taking place in the Tottenham Hale area, closing lines early on Monday morning, and overnight from Monday evening until Friday morning.
Between 01:50 and 05:00 on Monday morning, and between 23:30 (Monday to Thursday) and 05:00 (Tuesday to Friday), trains that usually run via Tottenham Hale will be diverted to run via Seven Sisters. Stations on the Seven Sisters Line are only a short distance from those on the Tottenham Hale line.
For Lea Bridge, you can use your ticket on London Bus services between Lea Bridge and Hackney Downs / Stratford.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner
You can plan your journey on London Buses by using the Transport for London Journey Planner