Work Item Summary
- Project Phase
- Phase 1
- Region
- Buckinghamshire
- Location
- A421, A4421
- Contractor
- EKFB JV
- Type of works
- Road closure, Traffic management
- Estimated Start Date
- 28/04/2025
- Estimated End Date
- 31/12/2025
What we are doing
We have recently been working alongside the carriageways on the A4421 and the A421. Here we will shortly be constructing highway tie ins which will connect to new sections of road and the newly built bridges. We previously altered the road layouts in the area by reducing sections of the roads to a single lane with temporary traffic lights. This was implemented to enable safe working areas for our staff. After monitoring the current traffic management in the area, we will be undertaking some changes to help improve the traffic flows.
The lights on the east of the A4421 will be temporarily removed which will allow us to prioritise the works on the west of the road.
A4421 Closure
• 28 April 8:30pm to 29 April 2025 5:30am
Temporary Traffic lights
• A4421 – April to December 2025
• A421 – April to September 2025
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]