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UPDATE: Notice of road closures A421 and A4421

Work item: HS2-EKFB-25-1056

Work Item Summary

Project Phase
Phase 1
Region
Oxfordshire
Location
A421, A4421, Finmere, Newton Purcell
Worksite Name
A421, A4421
Contractor
EKFB JV
Type of works
Road closure, Traffic management
Estimated Start Date
11/12/2025
Estimated End Date
02/02/2026

What we are doing

Location

A421 – Finmere
A4421 – Newton Purcell

Duration

A421
Weekend Road Closures – 8:30pm to 5:30am
– 12 December to 15 December 2025
– 16 January to 19 January 2026
– 23 January to 26 January 2026

A4421
Road Closure
– 8:30pm 11 December to 5:30am 12 December
– 30 January to 02 February 2026

Traffic management (lane closures and/or traffic lights) will remain on both roads when required until summer 2026.

What we are doing

Realigning both roads onto new overbridges.

What to expect

Weekend road closures and traffic lights

HS2 is undergoing a comprehensive reset to ensure it can be built efficiently and for the lowest reasonable cost. This work is being carried out in stages and will be completed in 2026. We will provide you with updates on the reset and what this means for our plans to build the railway in your area.

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]