M25 junction 25 improvements

Upgrade of junction 25 on the M25 to provide greater capacity.

Region:  South East
Start date:  2020/21
Cost:  £25 million to £50 million
Status:  PLANNED
Type:  Major Scheme
End date:  TBC
Programme:  

Progress report

Public consultation

We've developed the scheme using feedback from the public consultation we held from January to February 2017.

We proposed two options for improving junction 25:

  • Option 1 – extra lanes on roundabout and widen the A10 southbound approach
  • Option 2 – extra lanes on roundabout, widen the A10 southbound approach and M25 approaches, and provide free-flow left turn

Results from our public consultation:

  • 92% agreed that there was a need for improvement overall
  • When asked about key concerns relating to the junction improvements, most concerns were around congestion (95%), construction impacts (81%) and road safety (80%)
  • 77% supported Option 2 over Option 1

For more information read our Consultation Report

The preferred route is Option 2

Following an in-depth analysis of the work done to date and your feedback from our consultation, we announced in June 2017 that we'll proceed with Option 2. This will improve journey times through the junction and allow more capacity on the exit slip roads, reducing the likelihood of traffic queuing back onto the M25, particularly into the Holmesdale Tunnel, delivering major safety improvements.

For more information:

What’s next?

The next stage in the process is to hold public information exhibitions. We initially planned to hold public information exhibitions in 2018; however, to allow us extra time to ensure the events will be useful and informative, we now plan to hold them in summer 2019.

Further details will be provided in spring 2019.

Timeline

Date Event
16 January to February 2018 Public consultation
June 2017 Preferred route announcement
Summer 2018 Scheme update
TBC Public information exhibition
2020/21* Start of works

* The optimisation announcement by the Department for Transport (November 2017) has allowed us the opportunity to review the scheme taking the ‘start of works’ to 2020/21.

Why we need this scheme

Junction 25 is a nationally and regionally important road, connecting the M25 with the A10. Up to 6,300 vehicles per hour currently travel through the junction 25 roundabout at peak times, causing congestion and regular delays. The A10 southbound approach into the junction is also a congestion hotspot in Broxbourne.

Our research shows that if we don’t improve junction 25 by 2037, we can expect:

  • increased congestion and lengthy queues and journey times could double
  • average speeds could reduce by up to 30% through the junction
  • disruption would be more widespread following incidents
  • congestion would constrain future development and growth opportunities
  • uncontrolled deterioration to local air quality

Aims

Through this scheme, we aim to:

  • reduce congestion and delays at junction 25 between the M25 and the A10
  • increase capacity by widening both the roundabout and the A10 southbound approach
  • redesign the roundabout to improve safety and traffic flow
  • support future traffic demands, enabling development and economic growth
  • maintain access for pedestrians and cyclists and improve conditions where possible
  • minimise the environmental effects of this scheme on local air quality and noise

Project media files and documents

There are no images for this project

Project timeline

Planned roadworks

Roadworks and Events for England

The latest incident information for England's motorway and trunk routes provided by Highways England

Location : The M25 clockwise between junctions J27 and J28 . Lane Closures : Lanes 1, 2 and 3 will be closed. Reason : Road repairs are planned. Status : Pending. Schedule : From 23:00 on 22 February 2019 to 06:00 on 23 February 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 21, 2019, 5:31 am
Location : The M25 clockwise between junctions J25 and J26 . Lane Closures : Lanes 1, 2 and 3 will be closed. Reason : Emergency roadworks are planned. Status : Pending. Schedule : From 22:00 on 21 February 2019 to 05:30 on 22 February 2019. Schedule : From 23:00 on 22 February 2019 to 06:00 on 23 February 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 21, 2019, 5:31 am
Location : The M11 southbound between junctions J6 and J4 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 22:00 on 21 February 2019 to 05:30 on 22 February 2019. Lanes Closed : There will be two of three lanes closed.
Posted: February 21, 2019, 5:31 am
Location : The M25 clockwise between junctions J24 and J25 . Lane Closures : Lanes 2, 3 and 4 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 22:00 on 21 February 2019 to 05:00 on 22 February 2019. Schedule : From 23:00 on 22 February 2019 to 06:00 on 23 February 2019. Schedule : From 22:00 on 23 February 2019 to 06:00 on 24 February 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 21, 2019, 5:01 am
Location : The M25 anticlockwise between junctions J28 and J27 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 22:00 on 21 February 2019 to 05:00 on 22 February 2019. Schedule : From 23:00 on 22 February 2019 to 05:00 on 23 February 2019. Lanes Closed : There will be one of four lanes closed.
Posted: February 21, 2019, 5:01 am
Location : The M25 clockwise at junction J25 . Lane Closures : Lanes 2 and 3 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 22:00 on 21 February 2019 to 05:00 on 22 February 2019. Schedule : From 23:00 on 22 February 2019 to 06:00 on 23 February 2019. Schedule : From 22:00 on 23 February 2019 to 06:00 on 24 February 2019. Lanes Closed : There will be two of three lanes closed.
Posted: February 21, 2019, 5:01 am
Location : The M25 anticlockwise between junctions J26 and J25 . Lane Closures : Lanes 2, 3 and 4 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 22:00 on 21 February 2019 to 05:00 on 22 February 2019. Schedule : From 23:00 on 22 February 2019 to 06:00 on 23 February 2019. Schedule : From 22:00 on 23 February 2019 to 06:00 on 24 February 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 21, 2019, 5:01 am
Location : The M25 clockwise between junctions J26 and J27 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadside drains works are planned. Status : Pending. Schedule : From 22:00 on 21 February 2019 to 05:00 on 22 February 2019. Schedule : Expect disruption everyday between 22:00 and 05:00 from 25 February 2019 to 1 March 2019. Schedule : From 22:00 on 4 March 2019 to 05:00 on 5 March 2019. Lanes Closed : There will be two of four lanes closed.
Posted: February 21, 2019, 5:01 am
Location : The M25 clockwise between junctions J25 and J26 . Lane Closures : Lanes 2, 3 and 4 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 22:00 on 21 February 2019 to 05:00 on 22 February 2019. Schedule : From 23:00 on 22 February 2019 to 06:00 on 23 February 2019. Schedule : From 22:00 on 23 February 2019 to 06:00 on 24 February 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 21, 2019, 5:01 am
Location : The M25 anticlockwise entry slip at junction J27 From M11 South. Reason : Planned Roadworks. Status : Currently Active. Period : expect disruption until 06:00 on 21 February 2019. Lanes Closed : All lanes are closed.
Posted: February 21, 2019, 4:20 am
Location : The M25 anticlockwise between junctions J28 and J27 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 22:00 and 05:00 from 27 February 2019 to 1 March 2019. Schedule : From 23:00 on 1 March 2019 to 05:00 on 2 March 2019. Lanes Closed : There will be one of four lanes closed.
Posted: February 20, 2019, 10:12 pm
Location : The M25 clockwise between junctions J27 and J28 . Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 22:00 and 05:00 from 27 February 2019 to 1 March 2019.
Posted: February 20, 2019, 10:12 pm
Location : The M11 southbound between junctions J7 and J6 . Reason : Barrier repairs are planned. Status : Pending. Schedule : Expect disruption everyday between 08:30 and 17:00 from 21 February 2019 to 22 February 2019.
Posted: February 20, 2019, 5:01 pm
Location : The A1M southbound between junctions J3 and J1 . Reason : Horticultural works are planned. Status : Pending. Schedule : Expect disruption everyday between 09:30 and 16:00 from 21 February 2019 to 22 February 2019. Schedule : Expect disruption everyday between 09:30 and 16:00 from 25 February 2019 to 27 February 2019.
Posted: February 20, 2019, 4:01 pm
Location : The M1 southbound between junctions J2 and J1 . Reason : Barrier repairs are planned. Status : Pending. Schedule : Expect disruption everyday between 09:30 and 16:00 from 21 February 2019 to 28 February 2019.
Posted: February 20, 2019, 4:01 pm
Location : The M25 anticlockwise between junctions J28 and J27 . Lane Closures : Lanes 1, 2 and 3 will be closed. Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : From 22:00 on 26 February 2019 to 05:00 on 27 February 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 19, 2019, 10:12 pm
Location : The M25 anticlockwise between junctions J27 and J26 . Lane Closures : Lanes 1, 2 and 3 will be closed. Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : From 22:00 on 26 February 2019 to 05:00 on 27 February 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 19, 2019, 10:12 pm
Location : The M25 anticlockwise at junction J27 . Lane Closures : Lanes 1, 2 and 3 will be closed. Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : From 22:00 on 26 February 2019 to 05:00 on 27 February 2019. Lanes Closed : All lanes will be closed.
Posted: February 19, 2019, 10:12 pm
Location : The A1M northbound between junctions J1 and J3 . Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : From 09:30 on 22 February 2019 to 16:00 on 22 February 2019.
Posted: February 19, 2019, 11:54 am
Location : The M11 northbound entry slip at junction J4 North. Reason : Road repairs are planned. Status : Pending. Schedule : Expect disruption everyday between 22:00 and 05:30 from 25 February 2019 to 28 February 2019. Lanes Closed : All lanes will be closed.
Posted: February 19, 2019, 10:08 am
Location : The M25 clockwise between junctions J27 and J28 . Lane Closures : Lanes 1, 2 and 3 will be closed. Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : From 22:00 on 25 February 2019 to 05:00 on 26 February 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 19, 2019, 10:08 am
Location : The M25 anticlockwise between junctions J23 and J22 . Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 23:00 on 22 February 2019 to 05:00 on 23 February 2019. Lanes Closed : There will be two of four lanes closed.
Posted: February 19, 2019, 10:08 am
Location : The M11 northbound between junctions J7 and J8 . Lane Closures : Lane one will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : From 21:00 on 21 February 2019 to 05:00 on 22 February 2019. Lanes Closed : There will be one of three lanes closed.
Posted: February 19, 2019, 10:08 am
Location : The M25 clockwise exit slip at junction J25 . Lane Closures : Lane one will be closed. Reason : Road repairs are planned. Status : Pending. Schedule : From 22:30 on 24 February 2019 to 05:30 on 25 February 2019. Lanes Closed : There will be one of two lanes closed.
Posted: February 19, 2019, 10:08 am
Location : The M11 northbound entry slip at junction J4 South. Reason : Road repairs are planned. Status : Pending. Schedule : Expect disruption everyday between 22:00 and 05:30 from 25 February 2019 to 28 February 2019. Lanes Closed : All lanes will be closed.
Posted: February 19, 2019, 10:08 am
Location : The M25 anticlockwise between junctions J27 and J25 . Lane Closures : Lanes 1, 2 and 3 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 22:00 and 05:30 from 25 February 2019 to 1 March 2019. Schedule : From 23:00 on 1 March 2019 to 06:00 on 2 March 2019. Lanes Closed : There will be three of four lanes closed.
Posted: February 19, 2019, 10:08 am
Location : The M25 clockwise exit slip at junction J25 . Lane Closures : Lane two will be closed. Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : From 22:00 on 25 February 2019 to 05:00 on 26 February 2019. Lanes Closed : There will be one of two lanes closed.
Posted: February 19, 2019, 10:08 am
Location : The M25 anticlockwise entry slip at junction J27 From M11 South. Lane Closures : Lanes 1 and 2 will be closed. Reason : Roadworks are planned. Status : Pending. Schedule : Expect disruption everyday between 22:00 and 05:00 from 23 February 2019 to 25 February 2019. Lanes Closed : All lanes will be closed.
Posted: February 19, 2019, 10:08 am

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