HS2 UPDATE: Important notice of overnight lane closures on M25, Denham to Maple Cross

HS2 contractors Align JV will be carrying out urgent cleaning of the gully and carriageway and the works access lane onto the M25 clockwise carriageway between junction 16 (Denham Interchange) and junction 17 (Maple Cross Interchange).

Work will take place from 10 October 2021 at 10:30pm to 5:00am on 11 October. The emergency lane/hard shoulder and lanes one and two will be closed to traffic in a clockwise direction from 10:30pm to 5:00am while road cleaning takes place. Clockwise lanes three and four will remain open during works and you will still be able to travel in both directions during the works..

You can view the works notification, including a map, here


We’re committed to keeping you informed about the planning and delivery of the railway in your area with regular updates on progress.



If you have a question about HS2 or our works, please contact our HS2 Helpdesk team on 08081 434 434 or email hs2enquiries@hs2.org.uk.