A12 Chelmsford to A120 widening scheme - January 2017

Closed 3 Mar 2017

Opened 23 Jan 2017

Results updated 26 Aug 2020

Preferred Route Announcement (Junctions 19 - 23)

This 2017 consultation is now closed, we have announced our preferred route between junctions 19 and 23, which is based on route options 2 and 3.

We carefully considered all feedback from this consultation to select the best possible option to take forward as our preferred route. You can read more information in the Preferred Route Announcement leaflet and Consultation Report below. 

We are now consulting on four new route options between junctions 23 - 25 which will be considered should a proposed Colchester Braintree Borders Garden Community go ahead. To have your say on these options please visit our October 2019 consultation page 



Have your say

We want your views about plans to widen the A12 between junction 19 (Boreham interchange) and junction 25 (Marks Tey interchange). Inside the brochure, we’ve set out options for improvements.

Please tell us what you think about these plans by filling in the questionnaire.

The public consultation starts on 23 January and finishes on Friday 3 March.

The need for improvements on A12 between junction 19 and 25

The A12 between Chelmsford and Marks Tey is a vital transport link. Locally, it is the main commuter route to nearby towns. Nationally it is a major freight route through Essex and Suffolk, and connects Ipswich to London.

It needs major improvement for several reasons:


In places, the road is almost past its capacity. Motorists regularly experience major delays at peak times. Up to 90,000 vehicles travel between junction 19 and 25 every day. Forecasts reveal that the traffic on the A12 will exceed capacity by 2038. Congestion will increase if nothing is done to address this problem.


In the past 5 years, the junctions along this stretch of the A12 have experienced 3 fatal collisions and 12 serious accidents.

By improving the road, we can make it safer for everybody, including pedestrians, cyclists and equestrians as well as motorists.

Economic growth

By improving the overall traffic flow of a major route, it opens possibilities for growth, offering better access to local towns for businesses.


The 8 junctions along this section of the A12 suffer from a number of problems, including below standard slip roads and capacity problems which can result in tailbacks. As part of this consultation, we are asking you for your views on the junctions.

Your views are important

We want to hear your views about the options we are considering. You can find out more and speak to members of the project team at our public consultation exhibitions.

Although there will be other opportunities to comment and influence the proposals as they progress, this consultation provides a key opportunity for you to have your say on the future direction of the scheme. We will review and consider all comments received.

Please read the consultation brochure and give us your views using the link below.


  • All members of the public


  • Roads