A406 Bounds Green Improvement

Scheme outline

Upgrade of an existing single-carriageway stretch of A406 North Circular Road to a dual carriageway standard. This Transport for London project is a watered down version of the improvements planned but never implemented by the Highways Agency. It involves less property demolition and is a fraction of the cost, but is unlikely to be grade-separated. Even so, any extra capacity here is welcome - it is currently a single-carriageway section of an otherwise dualled and grade-separated road in a busy urban area.

This scheme was completed in and we're no longer accepting updates or changes to this page.

Other upgrade
for use by all traffic
Highway authority
TfL/Central Government


14 June 2005

Scheme will now definitely go ahead. There is much local opposition to the scheme as it will not accommodate future growth - public feeling is very much in favour of the original grade separated plan.

14 March 2006

Transport for London has now announced another review of the scheme and it is back on hold.

14 March 2007

The watered-down scheme, to dual the road and install improved signalised junctions, is now back on and is due to start in 2009, due to be completed in 2011.

30 January 2010

Preparatory work is now well underway with road closures and diversions on weekends.

19 July 2010

Long-term road closures and diversions come into force on 24 May 2010 to allow construction to get underway. The work is expected to continue until spring 2012.

More information


With thanks to Jim Rayner for information on this page.