Bakerloo line and London Overground passengers are being advised of essential railway upgrades which will impact journeys over six days in August.
From Saturday 3 August to Thursday 8 August.
This will affect the Bakerloo line between Queen’s Park and Harrow & Wealdstone stations and the London Overground between Euston and Watford Junction stations.
From Saturday 3 August to Thursday 8 August, TfL customers affected by the upgrades can complete their journeys by using alternative rail lines, and existing or temporary bus routes.
The lines affected are right next to but not linked electrically to the mainline trains between Euston and Watford Junction and the North. There may be a bit of slow running due to safety restrictions near the work but probably not - they are far enough apart. To get to Watford Junction for the Harry Potter studios, for example, you'd want the faster trains anyway. The Overground (orange on the map) is the all-stops and takes an age, whereas it is only around 15 minutes on the mainline trains.
The rest of the Bakerloo Line and the Overground on other lines are unaffected.