Skip to main page content
View route map

Overnight closure of A412 in Denham, Buckinghamshire, September 2023

Work item: HS2-MW-Align-Ph1-Ar-Ce-C2-Traf-1-09/08/2023

Work Item Summary

Project Phase
Phase 1
Region
Buckinghamshire, Hertfordshire, Hillingdon, Oxfordshire
Location
A412
Worksite Name
Colne Valley
Contractor
Align JV
Type of works
Road closure
Estimated Start Date
04/09/2023
Estimated End Date
29/09/2023

What we are doing

Update: These works have now been completed ahead of schedule and the road re-opened on Monday 25 September 2023.

The decking of the Colne Valley Viaduct over the A412 has already been completed, however we now need to work over the road to install parapets – walls either side of the viaduct. To complete these sections safely over the public highway we need to close the road to all users. For the safety of pedestrians and road users during the works, the A412 will be closed to pedestrians and all through traffic between Chalfont Lane, West Hyde and Moorfield Road, Denham Green – Monday to Saturday, from Monday 4 September to Friday 29 September between 10pm and 5am.

This short video explains the road closure and diversion route.

Please see notification below for more information.

Download information relating to these works

Find out more about

If you have a question about HS2 or our works, please contact our HS2 Helpdesk team on 08081 434 434 or email [email protected]