A120 maintenance work
We’re doing maintenance work on the A120 in Essex, including resurfacing, refreshing road markings and replacing worn-out road studs (cat’s eyes).
Latest updates
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29 October 2026
Planned work in November 2026
We’re undertaking resurfacing and road marking replacement work on the A120 between B1024, Coggeshall and London Road in Marks Tey.
We’ll work in phases over 3 weeks, starting on Monday 9 November.
Closures and Diversions
9 to 18 November (including weekend) - A120 between B1024, Coggeshall and Great Tey Road, Marks Tey
Closed overnight (9pm-5am).
19 to 23 November (including weekend) - A120 between Salmons Lane and Ashbury Drive, Marks Tey
Closed overnight (9pm-5am).
24 to 26 November - A120 between Ashbury Drive and London Road, Marks Tey
Closed overnight (9pm-5am).
A120 eastbound:
- follow the A120 westbound towards Braintree
- at Mark’s Farm Roundabout, take the first exit to continue following the A120 westbound
- leave the A120 westbound at Great Notley Roundabout to take the A131 towards Chelmsford
- follow A131 southbound through Great Notley and Great Leighs
- continue on the A131 Channels Drive and Beaulieu Parkway
- at Generals Lane Roundabout, take the A12 junction 19 northbound slip
- follow A12 northbound until junction 25
- leave the A12 northbound at junction 25 for Mark’s Tey
- re-join A120, resuming your journey
A120 westbound:
- take the A12 southbound from junction 25, Mark’s Tey
- leave the A12 southbound at junction 19
- at Generals Lane Roundabout, take the A131 northbound through Channels Drive and Beaulieu Parkway
- follow A131 northbound through Great Leighs and Great Notley
- at Great Notley Roundabout take the A120 eastbound
- at Mark’s Farm Roundabout take the third exit to continue on the A120 eastbound towards Coggeshall, resuming your journey
There will be access for residents and emergency services.
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30 December 2025
Planned road closures, January to February 2026
We’re doing maintenance work on the A120 in Essex in both directions between Dunmow West Interchange and Panners Roundabout.
We're working from Monday 12 January to Saturday 7 February 2026 (8pm to 6am) on weeknights only, weather permitting.
To work safely, we'll need overnight road closures.
Planned road closures
Monday 12 January to Friday 16 January 2026 (8pm to 6am)
A120 eastbound between Dunmow West Interchange to Dunmow South Interchange
Diversion
Diversion route for A120 eastbound between Dunmow West Interchange to Dunmow South Interchange:
- If you’re heading east on the A120 via Dunmow South Interchange, leave at the B1256.
- Follow the B1256 to the Rayne Road/Pod’s Brook Road roundabout.
- Keep going to Panners Roundabout, where you can rejoin the A120 and continue your journey east.
A120 Dunmow West Interchange to Dunmow South Interchange eastbound closure and diversion route map
Friday 16 January to Saturday 31 January 2026 (8pm to 6am)
A120 eastbound between Dunmow South Interchange and Panners Roundabout
Diversion
Diversion rote for A120 eastbound between Dunmow South Interchange and Panners Roundabout:
- If you’re heading east on the A120 via Dunmow South Interchange, leave at the B1256.
- Follow the B1256 east to Dunmow South Interchange where you can rejoin the A120 and continue your journey east.
A120 Dunmow South Interchange to Panners Roundabout eastbound closure and diversion route map
Monday 2 February to Saturday 7 February 2026
A120 westbound between Dunmow South Interchange and Dunmow West Interchange
Diversion
Diversion route for A120 westbound between Dunmow South Interchange and Dunmow West Interchange:
- If you’re heading west on the A120 via Dunmow South Interchange, leave at the B1256.
- Follow the B1256 east to Dunmow West Interchange where you can rejoin the A120 and continue your journey west.
A120 Dunmow South Interchange to Dunmow West Interchange westbound closure and diversion map
Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.
Project information
Overview
We’re doing maintenance work on the A120 in Essex to keep the road in a good condition.
The work will include resurfacing, refreshing road markings and replacing worn-out road studs (cat’s eyes)
Benefits
Once complete, drivers will benefit from a safer, smoother and better-defined road surface.
Documents
Traffic information
Information about scheduled roadworks and events on our motorways and major roads.Sign up for updates!
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