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A40 dual carriageway extension

The proposed scheme will increase general road capacity, improve journey time along the A40, and allow easy access to the new Eynsham park and ride.

About the project

Image showing the proposed extended dual carriageway

The proposal is to upgrade the A40 east of Witney to the Eynsham park and ride site from a single carriageway to a dual carriageway - a distance of 3.4km or 2.1 miles. This will include improving dedicated routes for walking and cycling. 

Junction improvements at Barnard’s Gate are also proposed, which will mean safer links to local access roads.

Your questions answered

View your questions about the A40 dual carriageway extension scheme for more details.

Take a look at a flyover of the scheme

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Why we are investing here 

Across the full A40 improvements programme, we’re investing £180 million in six major schemes, which will deliver a new park and ride, an extension of the dual carriageway around Witney, new bus lanes and junction improvements.

The programme will result in better transport connections, promote sustainable travel options, and reduce emissions. It will enable the creation of new jobs and support the requirements of local housing. 

Public engagement on the A40 HIF2 Smart Corridor projects brings together the A40 dual carriageway extension, with two other complementary projects:

The dual carriageway extension will ease congestion along the A40 and benefit users of all types of transport. This will result in improved journey times between Witney and Eynsham and allow enhanced access for pedestrians and cyclists.

Timetable of activity
Activity Target date
Public engagement May/June 2021 - Complete
Preferred option presented to Cabinet July 2021
Planning application submission November 2021
Compulsory Purchase and Side Roads Orders made Early 2022
Detailed design commences January 2022
Planning approval Spring 2022
Main construction begins on site Mid 2023
Construction works completed Late 2025

How it is being funded

The scheme is entirely funded by Homes England’s Housing Infrastructure Fund. Oxfordshire County Council has agreed a funding contract with Homes England subject to a series of conditions,

This project is expected to cost £53m