For periods within the Boreham Interchange Construction, there will be night-time closures between the hours of 8pm to 6am whilst certain works are taking place with signs in place showing the diversion routes.

  • March 15th to end of June – A12 Southbound on-slip widening works

Details of the project phases and advance notice of closures will be available on this website.

Project telephone number and project email details:

Tel: 020 7874 1590


If you require any specific information, please contact us through the contact details provided above. The website will be the principal place to search for ongoing information as the project progresses.