M25 closure – live: Motorway section reopens as National Highways issues update

There was slow moving traffic on parts of the M25 in Surrey on Monday morning as a section of the motorway closed over the weekend for maintenance reopened.

Tailbacks were reported between junctions 9 and 10, closed over the weekend, and on the A243 and A3 - near both junctions.

London’s orbital motorway, the busiest in the UK, was closed over weekend between Junctions 9 and 10 for maintenance.

National Highways said it made “good progress” on installing a new gantry and a new gyratory bridge on a section of the motorway.

Diversion routes tool cars on a 19-mile journey on A roads, crossing from Surrey into London’s Ulez area, though National Highways has assured drivers “no enforcement action will be taken” against those who follow official routes.

Key points

• Tailbacks reported as M25 reopens between junctions 9 and 10

• Map shows where traffic is heavy

• Motorists ‘ignoring’ official diversion route

• Heavy near Junctions 9 and 10

• What part of motorway is closed?

09:21 , Matt Mathers

We’re finishing our live reporting on the M25 motorway closure.

Thanks for reading and join us again soon for all the latest traffic and travel updates.

Have a good rest of day.

Motorists still urged to visit Surrey despite M25 closure

Saturday 11 May 2024 08:15 , Matt Mathers

Motorists are still being urged to visit Surrey this weekend despite the closure of the M25 motorway.

“Surrey is an enormous county so please carry on as you are,” National Highways project manager Jonathan Wade told BBC Radio Surrey.

He said the impact from the motorway closure was expected to be “fairly limited to certain areas”.

Pinned post: M25 closed in both directions between Junctions 9 and 10 - mapped

Saturday 11 May 2024 09:48 , Matt Mathers

Map below shows section of M25 motorway that is closed until Monday morning.

Official diversion routes this weekend

Saturday 11 May 2024 10:00 , Matt Mathers

Clockwise diversion for all but over-height vehicles:

• leave M25 at junction 8, A217 (Reigate)

• follow the A217 London, Sutton, (A240) Kingston

• after 3½ miles turn left onto the A240 Epsom, Kingston

• after 3 miles at the Esso roundabout, turn right onto the A24 (A240) Kingston

• continue for 3 miles and at the Tolworth interchange turn left onto the A3 Portsmouth, Guildford

• continue for 9½ miles to the M25 and re-join the motorway at junction 10

Anticlockwise diversion for all but over-height vehicles:

• leave M25 at junction 10 to join the A3 towards London

• after 9½ miles at the Tolworth interchange leave the A3 turning right onto the A240 Epsom, Reigate

• continue for 3 miles to the Esso roundabout and turn left onto the A240 Reigate

• continue for 3 miles then turn right onto the A217 Reigate, M25

• after 3½ miles turn left to re-join the M25 motorway at junction 8.

Drivers using the signed diversion route won’t be subject to any Ultra Low Emission Zone (ULEZ) charges that may usually apply. The Ultra Low Emission Zone will remain in force on all other routes in London across the weekend.

Traffic flowing fairly smoothly early on Saturday

Saturday 11 May 2024 10:06 , Matt Mathers

The key junction on the M25 closure diversion is the A3-A240 interchange at Tolworth in southwest London, travel correspondent Simon Calder reports.

It is a large and complex junction that is normally busy with local traffic and many bus services as well as vehicles joining and leaving the A3 trunk road between London and Portsmouth

Early on the first morning of the closure, traffic was flowing fairly freely. But the diversion route passes close to Chessington World of Adventures, which is expected to be very busy over the weekend. The RHS Garden Wisley, close to junction 10, is open as normal.

Motorists who decide to take the train instead between London and Portsmouth will find that the main railway line is partly closed due to Network Rail engineering work, with rail replacement buses running. There are also rail closures between Reading and Guildford, and between Guildford and Ash.

Traffic on the rest of the M25 is likely to be much heavier; for example motorists from Birmingham or Oxford taking the M40 to London may decide to head for Gatwick via the northern and eastern sections of the M25, increasing the distance covered by almost 100 miles.

Drivers urged to pack extra food and drink if planning to travel on M25

Saturday 11 May 2024 11:00 , Matt Mathers

The RAC advised motorists to avoid travelling if possible and pack extra food and drink if they plan on using the M25 this weekend as stretches of the motorway shut for the entire weekend.

Alice Simpson, RAC breakdown spokesperson, said: “As this next M25 weekend closure immediately follows major national rail strikes which could see many more people take to the roads, it could be up to six days of disrupted travel for London’s drivers.

“The closures also coincide with the retrofitting of new emergency areas on all-lane-running stretches of the M25, meaning delays are likely between junctions 5 and 7 in Surrey and Kent and junctions 23-27 in Hertfordshire and Essex.

“With weekend temperatures reaching 25 degrees or even higher, it’s likely that routes around the 23-mile diversion will be busy as people make the most of the fine weather and jump in the car for day trips.

“Anyone heading to Chessington World of Adventures, which is close to the official A3 diversion route, should expect delays and pack extra food and drink in the event they’re on the road longer than expected.

“Holidaymakers heading to Gatwick or Heathrow should leave an hour earlier than usual and allow plenty of time for parking and security checks.”

Could the work overrun?

Saturday 11 May 2024 11:06 , Matt Mathers

Most unlikely, says travel correspondent Simon Calder. The project bosses are well aware that finishing before the Monday morning rush hour is essential.

There are a series of milestones place to make sure the M25 is open for business at the start of the working week.

Last time the work was completed, and the M25 reopened, eight hours ahead of schedule.

ICYMI: Why is the M25 closed again this weekend and how bad is the traffic?

Saturday 11 May 2024 12:34 , Matt Mathers

“Only travel if necessary”: that was the message from National Highways ahead of the second weekend shutdown of the M25.

A 10-mile stretch of London’s orbital motorway closed between junctions 9 and 10, southwest of the capital, from 9pm on Friday 10 May until 6am on Monday 13 May 2024.

Full report:

Why is the M25 closed again this weekend and how bad is the traffic?

ICYMI: Traffic flowing fairly smoothly early on Saturday

Saturday 11 May 2024 13:00 , Matt Mathers

The key junction on the M25 closure diversion is the A3-A240 interchange at Tolworth in southwest London, travel correspondent Simon Calder reports.

It is a large and complex junction that is normally busy with local traffic and many bus services as well as vehicles joining and leaving the A3 trunk road between London and Portsmouth

Early on the first morning of the closure, traffic was flowing fairly freely. But the diversion route passes close to Chessington World of Adventures, which is expected to be very busy over the weekend. The RHS Garden Wisley, close to junction 10, is open as normal.

Motorists who decide to take the train instead between London and Portsmouth will find that the main railway line is partly closed due to Network Rail engineering work, with rail replacement buses running. There are also rail closures between Reading and Guildford, and between Guildford and Ash.

Traffic on the rest of the M25 is likely to be much heavier; for example motorists from Birmingham or Oxford taking the M40 to London may decide to head for Gatwick via the northern and eastern sections of the M25, increasing the distance covered by almost 100 miles.

Update: Slow moving traffic on lead up to Junctions 9 and 10

Saturday 11 May 2024 15:11 , Matt Mathers

Traffic is slow moving on the lead-up to Junction 9 on the M25, which is currently shut between Junctions 9 and 10 for maintenance work.

There was also slow moving traffic northwards on the A243, where drivers are exiting the motorway on a diversion to avoid the closure.

According to Google Maps, there was also a build-up of traffic at the end of the diversion on the A3, southwards, near Junction 10.

ICYMI: Official diversion routes this weekend

Saturday 11 May 2024 16:14 , Matt Mathers

Clockwise diversion for all but over-height vehicles:

• leave M25 at junction 8, A217 (Reigate)

• follow the A217 London, Sutton, (A240) Kingston

• after 3½ miles turn left onto the A240 Epsom, Kingston

• after 3 miles at the Esso roundabout, turn right onto the A24 (A240) Kingston

• continue for 3 miles and at the Tolworth interchange turn left onto the A3 Portsmouth, Guildford

• continue for 9½ miles to the M25 and re-join the motorway at junction 10

Anticlockwise diversion for all but over-height vehicles:

• leave M25 at junction 10 to join the A3 towards London

• after 9½ miles at the Tolworth interchange leave the A3 turning right onto the A240 Epsom, Reigate

• continue for 3 miles to the Esso roundabout and turn left onto the A240 Reigate

• continue for 3 miles then turn right onto the A217 Reigate, M25

• after 3½ miles turn left to re-join the M25 motorway at junction 8.

Drivers using the signed diversion route won’t be subject to any Ultra Low Emission Zone (ULEZ) charges that may usually apply. The Ultra Low Emission Zone will remain in force on all other routes in London across the weekend.

Why is the M25 closed again this weekend and how bad is the traffic?

Saturday 11 May 2024 17:00 , Matt Mathers

“Only travel if necessary”: that was the message from National Highways ahead of the second weekend shutdown of the M25.

A 10-mile stretch of London’s orbital motorway closed between junctions 9 and 10, southwest of the capital, from 9pm on Friday 10 May until 6am on Monday 13 May 2024.

Full report:

Why is the M25 closed again this weekend and how bad is the traffic?

ICYMI: Drivers urged to pack extra food and drink if planning to travel on M25

Saturday 11 May 2024 18:00 , Matt Mathers

The RAC advised motorists to avoid travelling if possible and pack extra food and drink if they plan on using the M25 this weekend as stretches of the motorway shut for the entire weekend.

Alice Simpson, RAC breakdown spokesperson, said: “As this next M25 weekend closure immediately follows major national rail strikes which could see many more people take to the roads, it could be up to six days of disrupted travel for London’s drivers.

“The closures also coincide with the retrofitting of new emergency areas on all-lane-running stretches of the M25, meaning delays are likely between junctions 5 and 7 in Surrey and Kent and junctions 23-27 in Hertfordshire and Essex.

“With weekend temperatures reaching 25 degrees or even higher, it’s likely that routes around the 23-mile diversion will be busy as people make the most of the fine weather and jump in the car for day trips.

“Anyone heading to Chessington World of Adventures, which is close to the official A3 diversion route, should expect delays and pack extra food and drink in the event they’re on the road longer than expected.

“Holidaymakers heading to Gatwick or Heathrow should leave an hour earlier than usual and allow plenty of time for parking and security checks.”

‘19 mile diversion in place'

Saturday 11 May 2024 18:53 , Barney Davis

Transport correspondent Simon Calder has been warning drivers they could be facing a 19 mile diversion as on the “really key stretch of the M25” between junction 9 and 10.

He told Times Radio: “The diversion goes a long way into London.

“The M25 has been complete for nearly four decades therefore there is lots of it that hasn’t turned out right.

“Towards the A3 junction, the busiest junction on the M25 300,000 cars a day, but it’s a right old muddle.

“They plan to improve the junction for horseriders and cyclists.

“They are closing it for five weekends this year.”

He adds is going to be messy between Heathrow and Gatwick airports with coach travel expected to take at least an hour longer.

Lorries snaking their way through suburbs after M25 closures

Saturday 11 May 2024 19:33 , Barney Davis

Huge HGVs dwarf shoppers as they are forced through Esher high road in Surrey by the diversion.

Good progress on M25 works made despite drivers ignoring diversion

Saturday 11 May 2024 20:33 , Barney Davis

Good progress has been made on the first full day of the M25’s weekend closure, National Highways has said, but drivers are being urged to stick to the official diversion route in a bid to keep traffic moving smoothly.

The motorway – which is Britain’s busiest – closed in both directions between junctions 9 and 10 in Surrey from 9pm on Friday while concrete beams for a new bridge are installed. It will reopen at 6am on Monday.

Diversion routes take cars on a 19-mile journey on A roads, crossing from Surrey into London’s Ulez area, though National Highways has assured drivers “no enforcement action will be taken”.

However, the highways authority said anyone who ignores official diversion signs in an attempt to find shorter alternative routes will be liable for the £12.50 daily Ulez fee if their vehicle does not meet minimum emissions standards.

Failure to pay the charge when required can result in a £180 fine, reduced to £90 if paid within 14 days.

Mapped: 19-mile diversion route will be in place which uses the A3 and the A240

Saturday 11 May 2024 21:22 , Barney Davis

Will M25 diversion drivers be charged ULEZ?

Saturday 11 May 2024 22:30 , Barney Davis

Diversion routes take cars on a 19-mile journey on A roads, crossing from Surrey into London’s Ulez area, though National Highways has assured drivers “no enforcement action will be taken”.

However, the highways authority said anyone who ignores official diversion signs in an attempt to find shorter alternative routes will be liable for the £12.50 daily Ulez fee if their vehicle does not meet minimum emissions standards.

Failure to pay the charge when required can result in a £180 fine, reduced to £90 if paid within 14 days.

More motorists ignoring diversions

Saturday 11 May 2024 23:22 , Barney Davis

National Highways said they had seen an increasing number of motorists choosing to ignore the diversion route, starting at junction 8, and instead continuing on the motorway to the next junction.

Simon Elliott, National Highways senior project manager, said it was “important that drivers follow the diversion route in place”.

He said in a statement: “It is the most effective way for people travelling clockwise along the M25 to reach their destination and will help keep traffic moving as well as possible during this weekend’s closure.

“Coming off at junction 9 means non-freight drivers will end up travelling behind or alongside HGVs which is something we are actively trying to avoid and is likely to have a negative impact on travel times, congestion and the communities they pass through.”

In Pictures: M25 repairs see Bridge winched into place

Sunday 12 May 2024 00:28 , Barney Davis

Downturn in business claimed after M25 diversions

Sunday 12 May 2024 01:30 , Barney Davis

The 19-mile diversion route saw an “unusually low volume of traffic”, with residents and local businesses reporting quiet roads and reduced footfall in their towns and villages.

Councillor Rod Ashford from the Reigate and Banstead Borough Council told the PA news agency that, at around 5pm, traffic around junction 8, where the diversion route starts, was “free-flowing with an unusually low volume of traffic”.

He added: “Given the A217 would be a route to divert M25 traffic to Epsom and around (to the) M25 junction 9, traffic in my area is quiet.”

Meanwhile, in Epsom, a town on the diversion route, workers at Blacks Burgers told the PA news agency there had been a “downturn in business and walk-in trade” compared to last weekend and corresponding with the road closure, whilst the area in general seemed quieter.

National Highways previously urged drivers to only travel the route if necessary, to avoid the closure and to complete their journeys in other ways if possible.

The M25 closure is the second of five planned weekend closures which come as part of a £317 million project to improve junction 10.

ICYMI: Why is the closure happening?

Sunday 12 May 2024 02:30 , Barney Davis

National Highways says it is necessary for “the installation of a bridge and gantry” as part of a £317 million project to improve junction 10 – which handles 300,000 motorists per day.

“Our improvements will reduce congestion, create a smoother flow of traffic and provide safer journeys for thousands every day,” National Highways says.

The organisation is promising:

• A larger roundabout with extra lanes to increase capacity.

• Free flow left turns at all four corners of the junction.

• New and safer routes for cyclists, pedestrians and horse riders.

• Improvements to the local environment and wildlife.

Drone footage of M25 closures as beams for new bridge installed

Sunday 12 May 2024 04:28 , Barney Davis

ICYMI: Drivers warned over Ulez charges if they ignore diversions

Sunday 12 May 2024 05:30 , Barney Davis

Drivers are being warned that they will be subject to London’s ultra low emission zone (Ulez) rules if they move off official diversion routes during this weekend’s M25 closure.

National Highways said anyone ignoring diversion signs in an attempt to find shorter alternative routes will be liable for the £12.50 daily Ulez fee if their vehicle does not meet minimum emissions standards.

Full report:

M25 closure: Drivers warned over Ulez charges if they ignore diversions

Watch: Drone footage captures scale of M25 closure as new bridge beams installed

Sunday 12 May 2024 06:30 , Barney Davis

Drone footage has captured the sheer scale of this weekend’s M25 closure as new bridge beams are installed.

The motorway – which is Britain’s busiest – will be closed in both directions between junctions 9 and 10 in Surrey from 9pm on Friday (10 May) until 6am on Monday (13 May) while concrete beams for a new bridge are installed.

Diversion routes will take cars on a 19-mile journey on A roads, crossing from Surrey into London’s Ulez area, though National Highways has assured drivers “no enforcement action will be taken”.

Watch the clip here.

Drivers ‘ignoring’ official diversion route

Sunday 12 May 2024 09:22 , Matt Mathers

An increasing number of drivers are “ignoring” an official diversion route around the M25 motorway closure, highways bosses have said.

London’s orbital motorway, one of the busiest in the country, is closed this weekend between Junctions 9 and 10 for maintenance work.

National Highways say they are making "good progress" to install a new gantry and a new gyratory bridge on the motorway.

“Coming off at junction 9 means non-freight drivers will end up travelling behind or alongside HGVs which is something we are actively trying to avoid and is likely to have a negative impact on travel times, congestion and the communities they pass through,” Simon Elliott, National Highways senior project manager, said as he urged motorists to use the official diversion route.

National Highways urges motorists to follow diversion

Sunday 12 May 2024 10:12 , Matt Mathers

National Highways has issued a fresh plea for drivers on the M25 motorway to use an official diversion route to avoid maintenance work between Junctions 9 and 10.

“#M25 #Surrey remains closed in both directions between J9 #Leatherhead & J10 #Wisley for planned works until 05:30 - 13/05, work is progressing well,” it said in a post on X.

“Please follow the official diversion routes to manage traffic flow effectively.”

ICYMI: Drivers warned over Ulez charges if they ignore diversions

Sunday 12 May 2024 11:00 , Matt Mathers

Drivers are being warned that they will be subject to London’s ultra low emission zone (Ulez) rules if they move off official diversion routes during this weekend’s M25 closure.

National Highways said anyone ignoring diversion signs in an attempt to find shorter alternative routes will be liable for the £12.50 daily Ulez fee if their vehicle does not meet minimum emissions standards.

Full report:

M25 closure: Drivers warned over Ulez charges if they ignore diversions

Slow moving traffic near junctions 9 and 10

Sunday 12 May 2024 12:14 , Matt Mathers

There continues to be slow-moving traffic on roads leading up to junctions 9 and 10 of the M25.

Tailbacks are being reported by Google Maps traffic on the A234 near Junction 9 and the A3 near Junction 10.

The two junctions are closed for maintenance.

ICYMI: Drone footage captures scale of M25 closure as new bridge beams installed

Sunday 12 May 2024 12:45 , Matt Mathers

Watch: Drone footage captures scale of M25 closure as new bridge beams installed

Recap: Why is the M25 closed again this weekend and how bad is the traffic?

Sunday 12 May 2024 13:00 , Matt Mathers

Full report:

Why is the M25 closed again this weekend and how bad is the traffic?

‘Major delays’ on two roads near M25 diversion route

Sunday 12 May 2024 13:40 , Matt Mathers

There are “major delays” on two roads coming off the M25 diversion route.

Surrey Highways said: “#M25 Update: Major delays in #WestByfleet along the Parvis Road, please avoid the area if you can.

“There is also congestion in #Leatherhead, #Oxshott  and in surrounding areas #Weybridge, #Cobham & #WaltonOnThames

“Check before you travel”.

Maps show latest delays near M25 diversion

Sunday 12 May 2024 15:14 , Matt Mathers

Maps show the latest delays near the M25 diversion as the motorway shuts for maintenance work.

There was heavy traffic on WestByfleet along Parvis Road in Surrey as well as the A243 and A3.

Traffic was also slow moving on the M25 approach to the A243.

Watch: Drone footage captures scale of M25 closure as new bridge beams installed

Sunday 12 May 2024 16:04 , Matt Mathers

Drone footage has captured the sheer scale of this weekend’s M25 closure as new bridge beams are installed.

The motorway – which is Britain’s busiest – will be closed in both directions between junctions 9 and 10 in Surrey from 9pm on Friday (10 May) until 6am on Monday (13 May) while concrete beams for a new bridge are installed.

Diversion routes will take cars on a 19-mile journey on A roads, crossing from Surrey into London’s Ulez area, though National Highways has assured drivers “no enforcement action will be taken”.

Watch the clip here.

ICYMI: National Highways urges motorists to follow diversion

Sunday 12 May 2024 16:30 , Matt Mathers

National Highways has issued a fresh plea for drivers on the M25 motorway to use an official diversion route to avoid maintenance work between Junctions 9 and 10.

“#M25 #Surrey remains closed in both directions between J9 #Leatherhead & J10 #Wisley for planned works until 05:30 - 13/05, work is progressing well,” it said in a post on X.

“Please follow the official diversion routes to manage traffic flow effectively.”

M25 roadworks ‘progressing well’

Sunday 12 May 2024 17:45 , Barney Davis

Roadworks on the M25 in Surrey are “progressing well” as the motorway remains shut in both directions between junctions nine and 10, National Highways has said.

The M25’s weekend closure on Britain’s busiest motorway has been in place since Friday from 9pm while concrete beams for a new bridge are installed. It will reopen at 6am on Monday.

On Sunday in a post on X, formerly known as Twitter, National Highways said that “work is progressing well” and urged drivers to “please follow the official diversion routes to manage traffic flow effectively”.

Major delays on roads surrounding M25 closures

Sunday 12 May 2024 20:30 , Barney Davis

Surrey Highways reported on Sunday at about 1.20pm that there were major delays in West Byfleet along Parvis Road and told drivers to try and avoid the area.

It also said there was congestion in Leatherhead, Oxshott and in surrounding areas of Weybridge, Cobham and Walton On Thames.

At around 3pm, it added that traffic levels were “reducing but the roads around the M25 closure and the diversions are still busy.”

Malden Rushett, Cobham, Esher and the A244 near Oxshott were still experiencing some delays.

Work ‘progressing well'

Monday 13 May 2024 00:42 , Alex Ross

On Sunday in a post on X, formerly known as Twitter, National Highways said that “work is progressing well” and urged drivers to “please follow the official diversion routes to manage traffic flow effectively”.

Traffic issues on Sunday

02:42 , Alex Ross

Surrey Highways reported on Sunday at about 1.20pm that there were major delays in West Byfleet along Parvis Road and told drivers to try and avoid the area.

It also said there was congestion in Leatherhead, Oxshott and in surrounding areas of Weybridge, Cobham and Walton On Thames.

At around 3pm, it added that traffic levels were “reducing but the roads around the M25 closure and the diversions are still busy.”

Diversion routes

04:15 , Alex Ross

Diversion routes take cars on a 19-mile journey on A roads, crossing from Surrey into London’s Ulez area, though National Highways has assured drivers “no enforcement action will be taken”.

However, the highways authority said anyone who ignores official diversion signs in an attempt to find shorter alternative routes will be liable for the £12.50 daily Ulez fee if their vehicle does not meet minimum emissions standards.

Failure to pay the charge when required can result in a £180 fine, reduced to £90 if paid within 14 days.

‘Avoid the closure'

05:15 , Alex Ross

National Highways previously urged drivers to only travel the route if necessary, to avoid the closure and to complete their journeys in other ways if possible.

The M25 closure is the second of five planned weekend closures which come as part of a £317 million project to improve junction 10.

Slow moving traffic between junctions 9 and 10 as they reopen

07:22 , Matt Mathers

There was slow moving traffic on parts of the M25 in Surrey on Monday morning as a section of the motorway closed over the weekend for maintenance reopened.

Slow moving traffic was reported between junctions 9 and 10, closed over the weekend, and on the A243 and A3 - near both junctions.

Maintenance work completed ahead of schedule

07:30 , Matt Mathers

National Highways said the maintenance work between junctions 9 and 10 was completed ahead of schedule as it confirm the road had reopened.

“We are pleased to confirm the planned works on the #M25 in Surrey between J9 #Leatherhead and J10 #Wisley have been completed ahead of schedule,” it said in a statement on X.

“The road is now fully open in both directions.

“Traffic is flowing well in both directions. Thanks for your patience.”

ICYMI: Drone footage captures scale of M25 closure as new bridge beams installed

07:43 , Matt Mathers

Watch: Drone footage captures scale of M25 closure as new bridge beams installed

Traffic still slow moving near junctions 9 and 10

08:20 , Matt Mathers

Traffic continues to be slow moving on parts of the M25 in Surrey between junctions 9 and 10.

It was slowest one side of the motorway near Downside (Junction 9) and on one side near West Byfleet/Byfleet (Junction 10), according to Google traffic.

The section of the motorway closed between the two junctions has reopened following a closure for maintenance work.

Traffic builds on A243 near Juction 9 of M25

08:45 , Matt Mathers

Traffic appears to be building on the A243 near junction 9.

Google’s traffic map says there is slow moving traffic on the road between Leatherhead and Chessington, Surrey.

The road leads onto Junction 9 of the M25, which has reopened following maintenance work.

Tailbacks grow past Junction 10

09:00 , Matt Mathers

Tailbacks on Junction 10 of the M25 (West Byfleet/Byfleet) appear to have grown all the way up to Junction 12 (Chertsey/Lyne).

Junction 12 connects the M25 to the M3, which connects London to the south.

Traffic was also building on the northbound lane of the A3 near Wisley.