There will be a preliminary phase of works starting on 26 July 2010 for 2 weeks to install the site offices and narrow lane traffic management. During this time there will be a requirement for the M40 junction 9 northbound exit slip road to be closed overnight. This will take place on the 6 and 7 August 2010 between 10pm and 5am. A clearly signed diversion route via M40 junction 10 will be in place.

This will then be followed by the main phase of work, which is scheduled to start on 9 August 2010, and will take roughly 5 months to complete.

The aim of this scheme is to increase capacity on the slip-roads and A34 in order to improve traffic flow, thereby reducing congestion at the junction.

Details of this scheme and further traffic management updates will be available on this website or by contacting the Highways Agency Information Line on 0300 123 5000