Lower Thames Crossing material change consultation

Overview

National Highways is seeking feedback on proposed changes to the Development Consent Order (DCO) for the A122 Lower Thames Crossing.

The proposed changes relate to environmental mitigation measures associated with the M25 between junctions 26 and 27 and the protection of the integrity of the Epping Forest Special Area of Conservation (SAC). The changes would not affect the design or construction of the road or tunnel.

This consultation brochure explains the changes that National Highways is considering making to the DCO for the A122 Lower Thames Crossing.

Your views are important to us and will help inform our next steps. Please use this online form to provide your comments on the proposals. The provision of contact details is optional and your comments will still be considered if provided anonymously.

How to have your say

Online
The easiest way to give us your views is by completing the online response form which can be accessed using the link further down this page.

By post
Download and print a paper response form.

The downloaded response form can be submitted by post to:

Material Change Consultation
Lower Thames Crossing
Pilgrims Lane
Chafford Hundred
RM16 5UZ

Email
You can also email the downloaded response form to: consultationresponses@lowerthamescrossing.co.uk

The deadline for submitting your feedback is 11:59pm on Tuesday 28 July 2026.

We cannot guarantee that consultation responses received after this deadline, will be considered.

If you have a question about the material change proposals, please contact National Highways using the details below:

Email: info@lowerthamescrossing.co.uk
Phone: 0300 123 5000 (Monday to Friday, 9:00am to 5:00pm)