The closure is the latest scheduled disruption that has taken place as part of a £317m project to demolish a bridge that is no longer in use.
Here is what the latest closure means for motorists.
What is this latest modification?
The Wisley interchange between the M25 and A3 is set to be closed all weekend.
While the slip roads and roundabout at junction 10 will be blocked, the M25 and A3 will stay open.
Drivers won’t be allowed to switch from the A3 to the M25 or the other way around.
J10 of the M25 has been undergoing major improvement works
PA Archive
The closure is necessary to give National Highways time to complete the gyratory’s final resurfacing project.
This is the final scheduled full-weekend closure of the Wisley Interchange as part of a long-term effort to widen the A3 at junction 10 with the M25.
When will the M25 closure take place?
The next closure will take place from 9pm Friday, May 16 until 6am on Monday, May 19.
National Highways has advised motorists to consider the impact of the closure on their travel plans and potential detours
Expect traffic on the M25 and in the vicinity during the weekend.
Diversion routes are anticipated to take between nine and 12 miles to complete, with light traffic each diversion route should take between 20 and 30 minutes.
What alternative routes can I take?
Other options include taking the M3, M23, or A24 to enter the M25 from the south, or entering the M25 from London or the north of Surrey via the A316 and M3, A23 and M23, or the A24.
The National Highways have established a total of six diversions. Some will pass through Leatherhead, West Clandon, Old Woking, and the Byfleets.
M25 travelling eastbound (towards Gatwick), continue north or south on the A3
M25 east diversion route map
Google Maps
- Leave the M25 at Junction 11
- follow the A320 towards the six crossroads roundabout Junction with the A245 Woking, (3.6 miles)
- then pick up the A245 to Sheerwater, West Byfleet and Byfleet (5.7 miles) to access the A3 north or south at the Painshill Junction
M25 travelling westbound (towards Heathrow), continue north on the A3
M25 west diversion (north) route map
Google Maps
- Leave at junction 9 and follow the A243 towards Malden Rushett and Chessington (5.3 miles)
- At the Hook Junction turn left onto the A309 Kingston Bypass and continue to the Scilly Isles Junction with the A307 (2.1 miles), then take first exit to the A307 towards Esher and Cobham to the Between Streets Junction (4.5 miles)
- at the junction of the A307 Portsmouth Road take the second exit to the A245 and head towards Painshill Junction and join the A3 north (0.6 miles)
M25 travelling westbound (towards Heathrow), continue south on the A3
M25 west diversion (south) route map
Google Maps
- Leave at junction 9 taking the first exit and follow the A24 Leatherhead Bypass south to the Givons Grove junction with the A246 (3.6 miles)
- at the Givons Grove roundabout junction with the A246 take the second exit to the A246 Leatherhead Road toward Guildford to the Clandon Crossroads (8.5 miles)
- at the Clandon Crossroads take the right turn to the A247 Clandon Road and then access the A3 South at the Send Junction (2.1 miles)
If you’re travelling to Gatwick and Heathrow airport this weekend and don’t want to face any delays, there are a number of train services you can take.
The Gatwick Express provides a non-stop train service to and from the airport and London Victoria, which departs every half hour and takes just 30 minutes.
There is also a Thameslink train which stops at central London stations including St Pancras, Blackfriars, London Bridge and Farringdon.
People travelling to Heathrow can take the Heathrow Express, a non-stop train service that runs to and from the airport and London Paddington. It runs every 15 minutes and takes just 15 minutes.
Heathrow is also on the Elizabeth Line and the Piccadilly Line, stopping at terminals 2, 3, 4 and 5.
