A12 Chelmsford to A120 widening scheme
We’re widening the A12 between junction 19 (Chelmsford) and junction 25 (A120 interchange) to ease congestion and cope with increasing traffic demands.
Project information
The A12 Chelmsford (junction 19) to A120 (junction 25) is part of the strategic road network and supports national and regional economy by connecting Felixstowe and Harwich ports to London. It links the towns of Chelmsford, Witham, Marks Tey and Colchester.
This road struggles to cope with existing peak traffic levels, resulting in delays and reduced speeds. With few available diversions, accidents lead to traffic disruption over a wide area.
The projected growth in population and local development in the area will only increase the pressures on this road.
To ease congestion and cope with increasing traffic, we’re widening the A12 between junction 19 (Chelmsford) and junction 25 (A120 interchange, Marks Tey).
This project aims to:
- improve safety by closing-off private access onto the A12 and providing alternatives
- reduce congestion and make journey times more reliable
- smooth traffic flow by helping the road to cope with incidents such as breakdowns and accidents
- support planned economic and housing growth in Essex and the surrounding region
- provide safer alternative routes away from the A12 for cyclists, walkers and horse riders
A12 Chelmsford to A120 Widening (Junctions 23 to 25) Public Consultation - 21 October 2019 to 1 December 2019
A12 Chelmsford to A120 widening scheme - 23 January 2017 to 3 March 2017
Documents
Ground investigations and surveys leaflet
A12 Surveys 2019 to 2020
A12 First forum presention 3 to 11 August 2016
A12 Second forum presentation 16 to 29 September 2016
A12 Third Forum presentation 25 November to 7 December 2016
Project Control Framework quick reference guide
Traffic data collection report
Options assessment report
Your property and highways england road proposals
A guide to Part 1 claims
Your property and compulsory purchase
Your property and discretionary purchase
Your property and blight
Your property and land surveys
Report on public consultation - May 2017
A12 Chelmsford to A120 widening (Junctions 23 to 25) - Preferred Route Announcement Brochure
A12 Chelmsford to A120 widening (Junctions 23 to 25) - Preferred Route Map
A12 Chelmsford to A120 widening (Junctions 23 to 25) - Public Consultation Report 2019
A12 Chelmsford to A120 widening (Junctions 23 to 25) - Frequently Asked Questions
A12 Chelmsford to A120 widening (Junctions 19 to 25) - Preferred Route Map
A12 Chelmsford to A120 widening (Junctions 19 to 25) - Proposed Area of Development Boundary
A12 Chelmsford to A120 widening (Junctions 19 to 25) - Public Consultation Report 2017
A12 Chelmsford to A120 widening - Scheme Assessment Report
A12 Chelmsford to A120 widening - Scheme Assessment Report Addendum
Consultation brochure – junctions 23 to 25 (2019)
Preferred route announcement – junctions 19 to 23 (2019)
Consultation response form (2019)
Consultation events 2019 - 19 to 23 preferred route - banner
Consultation events 2019 - Options A and B - banner
Consultation events 2019 - Options C and D - banner
Consultation events 2019 - Project update - banner
Consultation events 2019 - Benefits - banner
Consultation events 2019 - Background - banner
Consultation events 2019 - Journey time savings - banner
Consultation events 2019 - Traffic flows on local roads - banner
Consultation events 2019 - Next steps - banner

Traffic information
Information about scheduled roadworks and events on our motorways and major roads.Sign up for updates!
Keep up to date with what's happening on this scheme by signing up to our updates.