M3 junction 9 improvements

We’re proposing to change junction 9, so it has free-flowing links between the M3 and the A34 in both directions

Start date 2024-25
End date Road Period 3 (2025-2030)
Cost £190 to £210 million

Latest updates

  • 05 March 2024

    Development Consent Order - Recommendation stage complete

    The ‘Recommendation’ stage of our Development Consent Order (DCO) was completed on 16 February, when the Planning Inspectorate submitted the Recommendation Report to the Secretary of State for Transport.

    We’re expecting a decision and announcement in May 2024. Should the DCO be granted, we will start construction in early 2025.

    Our proposed changes to junction 9 will bring a host of benefits. Read about these across this project page where you can find out more about the improvements that have been put forward and how they will benefit road users and businesses, as well as leaving a positive environmental legacy of for years to come.

  • 05 February 2024

    February update and some lane closures

    We’re in the ‘Recommendation and Decision’ stage of our DCO (Development Consent Order) for the M3 Junction 9 Improvement Scheme. We’re expecting a decision from the Secretary of State for Transport by May 2024. Should the DCO be granted, we will start construction in early 2025.

    Changes to junction 9 will bring a host of benefits. Read about these across this project page where you can find out more about the improvements that have been put forward and how they will benefit road users and businesses, as well as leaving a positive environmental legacy of for years to come.

    Upcoming works – temporary lane closures

    We need to survey the condition of trees onsite to help us continue with our detailed design.

    We’ll do these using overnight lane closures on weeknights (usually between 9pm and 6am) and these aren’t expected to affect journeys.  

    Monday 12 February

    • M3 northbound between junction 11 and Winchester Services
    • A34 southbound between Three Maids Hill and M3 junction 9

    Tuesday 13 February

    • M3 north and southbound between Winchester Services and junction 11

     

     

     

     

  • 24 November 2023

    Our proposals reach next stage of the DCO process

    Good news - we’ve now reached the next stage of our DCO (Development Consent Order) for the M3 Junction 9 Improvement Scheme. We’re now entering the ‘Recommendation and Decision’ stage - this process takes six months, with a decision from the Secretary of State for Transport expected by May 2024. Should the DCO be granted, we will start construction in early 2025.

    Changes to junction 9 will bring a host of benefits. Read about these across this project page where you can find out more about the improvements that have been put forward and how they will benefit road users and businesses, as well as leaving a legacy of environmental enhancements for years to come.

  • 29 August 2023

    Survey work continues

    We’re continuing with some overnight ground investigations and survey work while the examination of our DCO application to improve junction 9 on the M3 gets underway.

    These will take place between 9pm and 6am between Monday 4 to Friday 8 September 2023.

    The A33 will be closed southbound from the B3047 to the M3. Drivers wishing to join the motorway will be diverted via B3047, A31 and Spitfire Link.

    The A34 will be fully closed in both directions between the junction 9 roundabout and the A272 at Three Maids Hill. Motorway drivers for the A34 northbound will be diverted via M3 and A303 or via Easton Lane. Non-motorway drivers will be diverted through local routes where they can join the A34 at Three Maids Hill.

  • 03 July 2023

    Land and utility surveys

    While the examination of our DCO application gets underway, we’re continuing to collect data from land and utility surveys to help us with our detailed design.

    Over the next few months, there will be some overnight road closures to carry out these surveys.

    We’re also working closely with communities and taking part in careers events at local schools. If you think we can help by giving a talk or lending a extra pair of hands, please get in touch – we’d love to hear from you.

    Upcoming closures

    • Monday 24 and Tuesday 25 July – the M3 southbound exit slip and A272 southbound exit from the junction 9 roundabout will be closed overnight (9pm to 6am). Drivers will be diverted via junction 11, B3407 and A31.

    Related closures

  • 23 May 2023

    DCO Examination begins

    A Preliminary Meeting was held on Tuesday 16 May 2023 by the Planning Inspectorate to discuss the Examination of the Development Consent Order (DCO) for our proposed improvements.

    An Open Floor Hearing was held on Wednesday 17 May 2023 for any Interested Party to make a spoken representation about the application directly to the Examining Authority.

    The Planning Inspectorate now has up to six months to carry out the Examination. Interested Parties who have registered by making a Relevant Representation will be invited to provide more details of their views in writing.

    Learn more about the DCO process

    For the most up to date information, please visit the Planning Inspectorate’s website.

    Survey work

    We’ve recently carried out a number of different surveys to help us with our detailed design.

    You may have seen us working during the day, drilling boreholes, and digging trenches to investigate the different types of materials below ground and analyse the time it takes water to drain away naturally.

    We’ve also been testing the strength of the M3 and A34 carriageways using a special weight and piece of equipment called a deflectograph to measure the impact it has on the road surface.

    We did our land surveys during the day and only worked on the road at night to keep disruption to a minimum.

    Winchester Bypass maintenance

    On Wednesday 24 June, there will be closures of the A33 and A34 overnight heading north while our maintenance teams carry out inspections on the bridge over the River Itchen ahead of work due to start here in July 2023.

    For more information, please visit our maintenance page.

  • 07 March 2023

    DCO progress, overnight closures and surveys

    Our Development Consent Order (DCO) application was accepted for examination by the Planning Inspectorate in December last year. A DCO is a special kind of planning permission required for Nationally Significant Infrastructure Projects.  

    The period for registering as an Interested Party closed on 13 March.

    Relevant representations will shortly be published on the M3 junction 9 project page on the National Infrastructure Planning website.

    Over the coming weeks, the Planning Inspectorate will publish the draft timetable for the Examination period.

    Learn more about the process

    At the end of the Examination period, the Examining Authority (a group appointed by the Planning Inspectorate to look through our application) submit a report to the Secretary of State for Transport. This report includes a recommendation on whether to grant the scheme.

    If our DCO is accepted, construction could start as early as 2024/25.

    Read more in our latest newsletter

    Upcoming closures

    We need to carry out ground surveys to help us continue with our detailed design.

    We’ll do these using overnight closures on weeknights (usually between 9pm and 6am) when there’s less traffic on the road.  

    Tuesday 21 to Thursday 30 March

    • The M3 will be closed northbound between junction 10 and 9. Drivers will be diverted via A31, B3047 and A34

     Friday 31 March to Wednesday 5 April

    • The M3 will be closed southbound between junction 9 and 10. Drivers will be diverted via A272 and A31

    Tuesday 11 to Friday 14 April

    • The M3 southbound exit slip and A272 southbound exit from the junction 9 roundabout will be closed. Drivers will be diverted via junction 11 and B3407 and A31

  • 15 December 2022

    Development Consent Order accepted for examination

    The Government’s independent planning authority, the Planning Inspectorate, has accepted our Development Consent Order application for examination, meaning that plans to improve junction 9 on the M3 can now move forward to the next stage.

    View the decision documents and register as an Interested Party on the Planning Inspectorate website

    What happens next?

    The decision means we’ve submitted all the information needed for our application to move into the examination stage. The Planning Inspectorate will have around three months to prepare for this. Should consent be granted, construction could start as early as 2024/25.

    In the early part of 2023, we’ll be carrying out some engineering and ecology surveys to monitor local wildlife and assist with the design of the project.

    This may require temporary road closures and diversions. Please continue to check our website or subscribe to our newsletter for the latest information.

  • 21 November 2022

    DCO application submitted

    Our DCO application to the Planning Inspectorate has been submitted.

    We’ll know whether our application has been accepted by the end of 2022. This does not mean that our application has been approved – instead the Planning Inspectorate decides whether we have submitted all the information needed for our application to move into the pre-examination stage.

    Keep following this page for more updates.

  • 20 September 2022

    Key changes to our design

    We’ve been reviewing the comments from our last consultation and have made some key design and environmental changes to our scheme.

    You can view our current plans, see the changes and look at our proposed timeline in our new online information portal.

    Public engagement events

    For anyone who would like to meet the team in person, we will be holding two public information events at Tesco Extra, Easton Lane, Winchester, SO23 7RS on:

    • Sunday 25 September from 10am until 4pm
    • Monday 26 September from 10am until 4pm

    Free parking is available on site, we look forward to meeting you.

    We’ll continue to carry out surveys of local flora and fauna. We’ve recently completed dormice and bat surveys and have been looking for white clawed crayfish. It’s important that we know about our neighbours so that we can protect their habitats and work around them.

    You can still contact us in the usual way by emailing m3junction9improvements@nationalhighways.co.uk or calling 0300 123 5000.

    The best way to stay up to date is by signing up to receive our email updates.

  • 21 June 2022

    Summer Newsletter

    In our latest newsletter, we talk about progress on the scheme, why we’re reviewing our designs and some of the environmental work we’re doing.

    We're continuing to refine our design and aim to apply for consent to make our improvements by Spring 2023 at the latest. We will update you when we’ve made our application and let you know the outcome from the Planning Inspectorate. We will also be in touch before then to keep you updated about the project.

    Read more and subscribe to our newsletter

  • 09 May 2022

    Development Consent Order update

    We’re applying for development consent for improvements to junction 9 later than we originally announced. We’re now looking to apply by Spring 2023 at the latest. This gives us time to consider how our design will tie-in with the existing road layout as opposed to a smart motorway layout.

    Earlier this year, Government asked National Highways to pause all smart motorway projects that were in their early stages, including the M3 J9-14 project. The pause on M3 J9-14 means we must adapt the designs and materials we submit to the Planning Inspectorate as part of our application for consent to improve junction 9.

    We’re applying later than originally planned but this allows us time to adapt some parts of our design so that when we come to submit our application for consent to improve junction 9 to the Planning Inspectorate, it has all the information needed to fully consider our application.

    We’re working hard to gather and analyse additional data so we can submit our application as soon as possible, with next Spring being the latest.

    We’re committed to making sure our application is as comprehensive and complete as possible.

    The delay in applying for consent to build means our date for starting construction will also be later

    If you have any queries about this update, please contact us by phone on:0300 123 5000 or by email: m3j9improvements@nationalhighways.co.uk

  • 22 December 2021

    Additional consultation after changes to land boundary

    A statutory consultation was previously held between 27 May and 8 July 2021.

    We listened to the feedback and the responses received, and as a result have developed our proposals further. This means a small amount of additional land is needed and we’ve had to change the Indicative Application Boundary.

    Due to these changes, before submitting our Development Consent Order (DCO) application to the Secretary of State for Transport in 2022, we have had to consult with people that have a legal interest in the land that may be compulsory acquired by the Scheme. This consultation took place between 17 November and 22 December 2021.

    The changes planned at M3 junction 9 are a critical part of our ongoing investment in the strategic road network and will improve journey times between south Hampshire and London via the M3 and the midlands and the north via the A34.

    Further information about the Planning Act 2008 process and Development Consent Orders can be found on the Inspectorate’s National Infrastructure Planning website: http://infrastructure.planninginspectorate.gov.uk/

  • 09 November 2021

    Consultation summary report now available

    Following our community consultation on the project design that ran for six weeks from 27 May to 8 July 2021, we have written a Consultation Summary Report.

    As set out in 2021 Statement of Community Consultation (SoCC), the summary report contains the initial feedback and views from the community and its stakeholders all of which will help us to develop proposals further and understand any concerns about the project ahead of the DCO (Development Consent Order) application.

    What happens now?

    We will continue to develop our proposals further for the DCO submission, that will include a longer Consultation Report that summarises all the feedback we received and how it has informed the development of the scheme. Although the Secretary of State for Transport will decide whether to give permission for the scheme, local planning authorities such as Winchester City Council, Hampshire County Council and the South Downs National Park Authority have an important role to play in the process. We’ve already been talking to them about our proposals and will continue to engage before, during and after we submit the DCO to the government, via the Planning Inspectorate, which is likely to happen in early 2022.

    The Planning Inspectorate will then examine the DCO application, with input from interested parties and statutory consultees. The examination period is a maximum of six months. Following the examination, the Planning Inspectorate will present its recommendation to the Secretary of State for Transport, who will then make the final decision on whether the DCO should be granted. We’ll carry on working on our detailed design throughout this process and, assuming the DCO application is successful, we expect to start construction work by mid to late 2023.

  • 19 July 2021

    Consultation now closed

    The consultation on our latest designs for junction 9 is now closed.

    All responses will now be reviewed and addressed in a Public Consultation Summary Report, which will be available on this webpage later this year. We will then look to submit our planning application in early 2022, with a decision to be made by the Secretary of State in 2023.

    If we’re given permission to build the scheme we hope to start in 2023.

    You can continue to view the latest designs, watch a fly-through and get information on the measures we're taking to protect the surrounding environment, by clicking on the consultation webpage.

    Consultation webinar recordings

    We hosted a series of webinars on particular topics between Wednesday 2 June and Thursday 17 June. Below are links to the recordings:

    If the subtitles do not automatically appear when you open the video, you can click on the 'Settings' icon (in the bottom right corner of the You-tube video screen), click on 'Subtitles', then select 'English.

  • 27 May 2021

    We're consulting on our proposals for this junction

    M3 J9 proposed improvements

    Visit our virtual room and see our latest designs, watch a fly-through and get information on the measures we're taking to protect the surrounding environment. Then take part in our consultation by giving us your thoughts and leaving your feedback by filling in our questionnaire.

    We're also hosting a series of webinars on particular topics. These are free and open to everyone:

    Introduction to the M3 Junction 9 improvement scheme and next steps - Wednesday 2 June, 7.00pm – 8.00pm and Saturday 5 June 3.30pm – 4.30pm

    Our proposals – what we are planning to do - Tuesday 8 June, 9.30am – 10.30am and Thursday 17 June 7.00pm – 8.00pm

    Our effect on the environment: overview - Thursday 10 June 7.00pm – 8.00pm

    Our effect on the environment: landscape, visual impacts, wildlife and habitats Monday 14 June 7.00pm – 8.00pm

    Our effect on the environment: air quality and noise Tuesday 15 June 7.00pm – 8.00pm

    You can register for an online webinar and submit your questions in advance by emailing M3junction9Improvements@highwaysengland.co.uk or calling 0300 123 5000. 

    Speak to our team

    Our team will be available Monday to Friday between midday to 7pm and Saturday between 10am to 4pm throughout the consultation period (27 May until 8 July) to discuss our proposals and to answer any questions you may have. You can book an appointment by emailing M3Junction9Improvements@highwaysengland.co.uk or call 0300 123 5000.

    If you'd like a paper copy of any of the consultation documents, we can send these to you. Please note there may be a charge of up to £200 (including postage) for a paper copy of the Preliminary Environmental Information Report. All other consultation documents are available free of charge either in hard copy or digitally on a USB.

    Please email: M3Junction9Improvements@highwaysengland.co.uk or call 0300 123 5000 to request a consultation document for delivery.

  • 01 April 2020

    Further public consultations

    A full report on our 2019 design consultation will be available in spring 2020. We aim to go back out to public consultation with a further refined set of proposals later in 2020.

  • 19 March 2020

    Proposal review

    We consulted the public on our proposals for improving junction 9 of the M3 in summer 2019. The feedback received during that consultation showed there is widespread support for changes to the junction which will reduce congestion and improve traffic flow.

    Following feedback from our 2018 consultation, we made improvements on the A34/A33 northbound weaving lengths. In further feedback received in the 2019 summer consultation events, some people told us that they continued to be worried that weaving lengths northward of the new junction along the A34 were not long enough.

    We have taken that feedback into account, along with new information from additional traffic modelling, and are now reviewing our original proposals. By doing this we’re making sure our final designs are for an even better performing junction.

Project information

Overview

The M3 connects south Hampshire with London, the Midlands and the North.

Traffic levels are heavy at junction 9 between the M3 and A34, resulting in lengthy queues on the northbound off-slip of the M3 and A272 Spitfire Link, affecting journey times and road safety.

We’re proposing to change the junction so that it has free-flowing links between the M3 and the A34 in both directions.

Our proposals would also see the junction widened and two new bridges build on the gyratory, allowing the M3 to increase from 3 lanes to 4 as it passes through the junction.

We’ll also extended the southbound slip onto the M3 so traffic has more time to join the motorway and improve the safety of the junction with upgraded signs and gantries.

Walker, cyclists and horse-riders will also benefit from our scheme with non-motorised routes connecting Kings Worthy and Winnall and Long Walk and Easton Lane.

Find out more in our information portal

Our scheme will

  • Improve safety, journey times and air quality
  • Reduce congestion and noise levels
  • Provide better routes for walkers, cyclists and horse riders
  • Increase road capacity and support economic growth

Our improvements will provide a safer and more integrated network, bringing real benefits to people who use this junction daily.

Find out more in our information portal

We hosted a series of webinars in June 2021. Below are links to the recordings:

If the subtitles do not automatically appear when you open the video, you can click on the 'Settings' icon (in the bottom right corner of the You-tube video screen), click on 'Subtitles', then select 'English.

Documents

Consultation 2021

Public Consultation Brochure

Public Consultation Feedback Questionnaire

Section 47 Notice

Section 48 Notice

Consultation Exhibition Boards

Consultation Poster

Indicative General Arrangement

Indicative Application Boundary

Indicative Land Use

Environmental Mitigation Design Plan

Walking and Cycling Proposals Plan

Preliminary Environmental Information Report - Non-Technical Summary 1 of 2

Preliminary Environmental Information Report - Non-Technical Summary 2 of 2

Preliminary Environmental Information Report (PEIR)

PEIR Appendix 2.1 General Figures 1 of 2

PEIR Appendix 2.1 General Figures 2 of 2

PEIR Appendix 5.1 Air Quality Figures 1 of 6

PEIR Appendix 5.1 Air Quality Figures 2 of 6

PEIR Appendix 5.1 Air Quality Figures 3 of 6

PEIR Appendix 5.1 Air Quality Figures 4 of 6

PEIR Appendix 5.1 Air Quality Figures 5 of 6

PEIR Appendix 5.1 Air Quality Figures 6 of 6

PEIR Appendix 6.1 Detailed Cultural Heritage Baseline

PEIR Appendix 6.2 Geophysical Survey Summary Report

PEIR Appendix 6.3 Archaeological Evaluation Report

PEIR Appendix 6.4 Geophysical Survey Report

PEIR Appendix 7.1 Landscape and Visual Figures 1 of 3

PEIR Appendix 7.1 Landscape and Visual Figures 2 of 3

PEIR Appendix 7.1 Landscape and Visual Figures 3 of 3

PEIR Appendix 8.1 Biodiversity Figures

PEIR Appendix 8.2 Baseline Reports 1 of 5

PEIR Appendix 8.2 Baseline Reports 2 of 5

PEIR Appendix 8.2 Baseline Reports 3 of 5

PEIR Appendix 8.2 Baseline Reports 4 of 5

PEIR Appendix 8.2 Baseline Reports 5 of 5

PEIR Appendix 10.1 Material Assets and Waste Figures

PEIR Appendix 11.1 Noise and Vibration Figures

PEIR Appendix 12.1 Population and Health Figures

PEIR Appendix 13.1 Road Drainage & the Water Environment Figures

PEIR Appendix 14.1 Climate Projections Data

PEIR Appendix 15.1 Long List of 'other development'

PEIR Appendix 15.2 Short List of 'other development'

PEIR Appendix 15.3 Cumulative Assessment Matrix

Statement of Community Consultation

Traffic information

Information about scheduled roadworks and events on our motorways and major roads.

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