South East - Maintenance schemes

We've found large numbers of dead or dying Ash trees. These are a potential safety risk to people on or near our road network.

We need to remove or make safe ash trees identified as needing urgent action.

We'll put signed diversions in place while we work. Please follow our official diversions, not satnav instructions.

Closures

While we work, we'll need overnight closures at these locations.

6 to 18 November - M3 southbound junction 5 to junction 6

Closed overnight (9pm-6am).

Diversion:

• If you wanted to travel northbound on Blackstocks Lane, instead travel eastbound on Greywell Road until joining the A30 eastbound.
• continue on A30 eastbound until exiting on to Crown Lane northbound.

10 - 12 November - A303 Winchester Road eastbound exit slip closure

Closed overnight (9pm-6am).

Diversion for slip closure:

• If you wanted to exit the A303 on to Winchester Road, instead continue eastbound on the A303 and exit on to A3093 northbound.
• continue on A3093 until first roundabout and then exit on to A3093 southbound
• rejoin the A303 westbound and continue until exiting at Hundred Acre Roundabout
• join the A343 from Hundred Acre Roundabout and follow until Folly Roundabout
• exit the Folly Roundabout on to A3057 and continue until reaching the roundabout that joins Winchester Rd 

20 to 21 November – A31 eastbound from Boundary Lane roundabout to Ashley Heath roundabout

Closed overnight (9pm to 6am)

Diversion:

• head westbound on the A31 and exit on to New Road (A347)
• join Christchurch Road/Parley Lane (B3073) until joining Spur Road (A338) northbound
• follow the A338 until rejoining the A31 at Ashley Heath roundabout

23 to 24 November 2026 – A3 northbound from Berelands Interchange to Sheet Interchange

Closed overnight (9pm to 6am).

Diversion:

• exit the A3 northbound at Berelands Interchange and join Winchester Rd/Station Rd eastbound
• continue eastbound on Station Rd/Ramshill until joining the A272 northbound
• rejoin the A3 northbound at Sheet interchange

24 to 26 November 2026 – M27 westbound junction 1 to A31 Upper Canterton

Closed overnight (9pm to 6am).

Diversion:

• exit at Cadnam Interchange onto the A31 and then join the A336
• from the A336, join the A326 and then join the A35
• continue on the A35, turn left on to Gosport Lane
• continue on Chapel Lane, then rejoin the A35
• follow the A35 until Iford Brg and then join the A3060
• follow the A3060, then join the A338
• rejoin the A31 at Ashley Heath Roundabout.

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

We're undertaking bridge deck refurbishment and the replacement of both expansion joints on the A2 at Patrixbourne.

The deck and expansion joints have worn out and need replacing to keep the structure safe and up to standard.

Lane Closures (8pm-6am)

19 to 20 October

Lane 2 closed both directions.

20 to 22 October

Lane 1 closed both directions.

Lanes reopen fully at the end of each overnight shift, so there's no impact on daytime traffic.

Main works September 2027

Main construction works are planned from September 2027, including weekday overnight shifts and full weekend closures. Diversion routes for this stage will be confirmed closer to the time.

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

We've closed the southbound exit slip on the A21 at Vauxhall. The closure is needed following damage to a bridge parapet.

For safety reasons the slip way will remain closed until we carry out repairs.

We'll provide further information on timescales as soon as possible. 
 
Diversion

• stay on the A21 southbound until the Longfield junction
• exit the A21 and re-join northbound

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

We're stabilising the embankment that supports the footpath on the southbound carriageway of the A21.

Work includes:

• clearing vegetation
• planting willow poles that will grow into trees
• installing safety barriers.

Traffic management

• 15 September to 9 November 2026 (weekdays only 8am-5pm)
• 11 January to 5 February 2027 (weekdays only 8am-5pm)

Two-way temporary traffic lights on the A21 between the B2099 junction at Swiftsden and Boarzell Lodge (around 300m north of the junction).

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

Closures

17 – 20 November - A21 northbound and southbound, Morleys to Vauxhall.

Lane 1 closed overnight (8pm - 6am) each night, reopening fully by morning.

Main works July 2027

The main construction works are planned for July 2027, with 4 overnight weekday shifts and 4 full weekend closures.

A21 northbound and southbound, Morleys to Vauxhall - July 2027

Diversion 

• follow the A26 through Tonbridge
• continue via the A227, using local roundabouts and roads
• rejoin the A21 northbound beyond the closure

A21 Quarry Hill southbound exit slip closure - bridge joint works at Quarry Hill.

Diversion 

• stay on the A21 southbound
• exit via A26 Pembury Road / Vauxhall Roundabout
• follow Woodgate Way through Tonbridge
• continue to Quarry Hill Road and rejoin the A21 at Quarry Hill interchange

Further details will follow once confirmed.

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Closures and traffic management

24 November to 19 December 2026 - A21 from Junction Road to Moat Lane

Closed overnight (8pm - 6am).

14 to 19 December 2026 - A21 Ebden's Hill

Daytime traffic lights (6am to 8pm). 

Signed diversions in place by the A2100. Please allow extra time for your journeys.

We'll need more traffic management from January to Spring 2027. We'll give you more information here when we have firm details.

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

We're undertaking lighting works on the A23 London Road at Gatwick.

Closures

12 October to 13 November - A23 London Road westbound exit slip

Closed overnight (9pm-4am).

Diversion:

• continue along London Road to Longbridge roundabout
• turn around and head back along London Road
• leave at the exit for Gatwick Airport, East Grinstead and M23 to join Airport Way
• at the Airport Way roundabout, turn around and continue on Airport Way

16 November to 4 December - A23 London Road westbound entry slip

Closed overnight (9pm-4am).

Diversion:

• take the exit from the roundabout onto Airport Way
• continue to the Airport Way roundabout
• turn around and head back onto Airport Way, taking the first exit towards North Terminal
• turn left onto Perimeter Road North, then left following signs for Horley (A23 N) and Crawley (A23 S)

7 to 12 December - A23 London Road to A23 Airport Way eastbound entry slip

Closed overnight (9pm-4am).

Diversion:

• continue on London Road to Gatwick Road roundabout
• turn around and return along London Road
• take the exit towards M23 and Gatwick Airport to join Airport Way

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

Closures

23 to 25 November - A26 from Bedingham Roundabout to Southease

Closed overnight  (8pm - 6am).

26 and 27 November  - A26 from South Heighton to Drove Road, Newhaven

Closed overnight  (8pm - 6am).

Diversion

Clearly signed diversion routes will be in place.

• we'll divert north and southbound traffic by the A27 between Beddingham roundabout and Polegate
• from this point, drivers can continue on local authority roads to re-join  the A26

We'll provide escorted access for residents during overnight closures. 

We'll maintain access for emergency services throughout works.

Please plan ahead, follow the signed diversion route and allow extra time for your journey.

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Closures

28 September – 24 October - A26 South Heighton to South Downs Way (both directions)

Closed overnight (8pm - 6am), Monday to Friday only. No closures on 30 September and 9 October.

Southbound diversion-

• head eastbound along the A27
• continue southbound on the A2270
• turn right onto the A259, then westbound along East Dean Road, Eastbourne Road and Newhaven Road

The northbound diversion follows the same route in the opposite direction.

Access for residents and emergency services

We'll escort local residents and emergency services through closures. Pull up to our traffic management gates and wait for one of our staff to assist you.

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

We’re resurfacing four roundabouts along the A27 Chichester bypass:

• Stockbridge
• Whyke
• Bognor
• Fishbourne

Closures

The following overnight (8pm to 6am) closures will be in place:

Tuesday 1 to Friday 4 September 

A27 closed from Fishbourne Roundabout to Whyke Roundabout

Monday 7 to Friday 11 September

A27 closed from Stockbridge Roundabout to Bognor Roundabout

Monday 14 to Friday 18 September

A27 closed from Whyke Roundabout to Portfield Roundabout

Monday 21 September to Thursday 8 October (excluding Fridays)

A27 closed from Warblington to Stockbridge Roundabout

Please follow signed diversions and allow extra time for your journeys. 

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Closures and diversions

Overnight closure of A3 northbound from Dennis Interchange to Clay Lane

• Monday 26 October to Sunday 8 November (9pm-6am)
• Wednesday 18 November to Saturday 21 November (9pm-6am)

Overnight closure of A3 southbound from Burpham to Dennis Interchange

• Tuesday 15 to Friday 18 December (9pm-6am)
• Monday 4 to Thursday 14 January (9pm-6am)

Northbound diversion

• Traffic to leave Dennis interchange and use the A25 east to Parkway
• A3100 and rejoin A3 at Clay Lane junction.
• High sided vehicles are to leave Dennis Interchange and use the A3 southbound
• leave the A3 at university to The Chase
• Guildford Park Road
• Bridge Street
• A322
• A25 east to Parkway
• A3100 and rejoin A3 at Clay Lane junction

Southbound diversion

• Traffic to leave the A3 at Burpham slip road
• A3100 west to Parkway
• A25 to rejoin A3 at Dennis Interchange
• High sided vehicles are to leave the A3 at Burpham slip road
• A3100 west to Parkway
• A25
• A322
• Bridge Street
• Guildford Park Road
• The Chase and rejoin the A3 at University

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Closures

A31 between Bere Regis Roundabout and Roundhouse Roundabout (Sturminster Marshall)

Closed overnight, Monday to Friday (9pm-6am).

Update

Started 2 October and was expected to be completed by 23 October (3 weeks). 

Due to adverse weather we require a further 4 nights of closures to complete the work, we aim these will be during week of 23 to 27 November.

Diversions 

Westbound:

• leave the A31 at Roundhouse Roundabout onto the A350 towards Poole
• continue to Upton Roundabout and join the A35 towards Bere Regis
• rejoin the A31 at Bere Regis Roundabout

Eastbound:

• leave the A31 at Bere Regis Roundabout onto the A35 towards Poole
• continue to Upton Roundabout and join the A350 towards Blandford Forum
• rejoin the A31 at Roundhouse Roundabout

Emergency services access will be maintained throughout.

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Lane closures

October and November - A31 eastbound at New Ocknell

One lane closed overnight (8pm - 6am)

8pm Monday 2 to 6am Saturday 7 November - A31 westbound at New Ocknell 

One lane closed.

Footpath adjacent to A31

We'll need to close the footpath while we move equipment between our compound and the culvert.

At other times, we'll re-open the footpath to let wildlife move through.

Slufters Enclosure carpark

We'll close the carpark 24/7 while we work.

Protecting the New Forest 

We'll be working within the New Forest National Park and Site of Special Scientific Interest (SSSI). We've planned our activities to meet the requirements for working within an SSSI, in partnership with:

• Environment Agency
• Forestry England
• Natural England
• The Verderers of the New Forest 

As well as maintaining the culvert, we'll help wildlife to move safely through it by:

• creating a mammal ledge
• installing fish baffles 

Closures

15 June to 23 November - A34 northbound from Marcham Interchange to Lodge Hill junction

Closed overnight (9pm-6am) up to seven nights a week until Sunday 1 November. 

After this date closures will be Monday to Friday nights only.

There will also be daytime narrow lanes and a 50mph speed limit northbound.

Diversion by

• the A415
• and A4074

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

We’re undertaking additional structural investigation work between Monday 26 October and Wednesday 25 November at Five Ways Corner, M1 junction 2.

Closures

26 and 27 October - M1 northbound junctions 1 to 5 and M1 southbound junction 2 exit slip road

Closed overnight (10pm-5:30am)

Diversion by:

• M1
• A406 eastbound and A41 northbound
• A1 northbound
• A41 northbound to M1 junction 5

28 October - M1 northbound junctions 1 to 5 and M1 north and southbound junction 2 both entry and exit slip roads

Closed overnight (10pm-5:30am)

Diversion by:

• M1
• A406 eastbound and A41 northbound
• A1 northbound
• A41 northbound to M1 junction 5

2 to 4 November - A1 westbound Great North Way between Parsons Street and the M1 road closure

Closed overnight (10pm-5:30am)

Diversion by:

• A406 for M1 traffic
• and A41 for A1 traffic

Access maintained for Hilltop Garden Residents.

5 to 13 November and 23 to 25 November - A1 Great North Way eastbound entry slip road with A1 southbound Watford Way and A1 northbound Great North way lane closures

Closed overnight (10pm-5:30am)

Diversion by:

• A1
• A41
• A406

Access maintained for residents adjacent to the slip road.

Bunns Lane Bridge bus stop (southbound) suspension.

We'll provide overnight escort access for residential side roads adjacent to the A1 to maintain property access where there is no alternative route in or out.

These investigations will involve several safety checks for the continued safety of the structure.

Please remember that closures can change at short notice. You can find the latest information on our daily closures page or check for current incidents, disruptions and delays. Our travel alerts give details of high priority incidents on our network.

Closures

16 – 20 November, 26 – 27 November and 14 – 18 December - M2 eastbound, junction 5 to 6

Closed overnight (8pm – 6am), weeknights only:

Diversion 

• leave at M2 junction 5 onto A249 southbound
• join M20, junction 7 to 9 eastbound
• take A28 northbound back to A2

3 – 4 December and 7 – 11 December - M2 westbound, junction 7 to 5

Closed overnight (8pm – 6am), weeknights only:

Diversion 

• from A2, take A28 southbound
• join M20, junction 9 to 7 westbound
• take A249 northbound back to M2 junction 5

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

We've had to put some temporary metal barriers and restrictions in place on the London-bound carriageway of the M2 Medway Bridge.

They will need to remain in place until we carry out permanent repairs to a damaged parapet barrier. This is expected to take up to six weeks because of the need to order a specialist part.  

Three lanes remain open, but for safety reasons the following restrictions are currently in place London-bound only:

• lane closure
• hard shoulder closure
• 50mph speed limit
• junction 2 exit slip closure 

We're working to re-open the junction 2 exit slip as soon as possible. 

If you need to exit at junction 2, follow this diversion route:

• leave the M2 at junction 3 and join the A229
• travel southbound to the M20, joining at junction 6
• leave the M20 at junction 4
• join the A228 northbound back to junction 2 of the M2

Please plan ahead and allow extra time for your journey. 

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Closures

Overnight closures run 8pm to 6am, Monday to Friday nights, plus Saturday 31 October and 7 November.

27 October - M20 junction 7 London-bound entry slip

Closed overnight (1 night - 8pm to 6am).

Diversion 

• join M20 coastbound at junction 7
• travel to junction 8 and use the roundabout to return London-bound

28 – 29 October - M20 London-bound distributor road from junction 6

Closed overnight - 8pm to 6am. You can still join the distributor via the junction 6 entry slip.

Diversion 

• continue London-bound to junction 4
• return coastbound to reach the junction 5 or junction 6 exit slip

30 – 31 October - M20 junction 6 London-bound entry slip

Closed overnight (2 nights - 8pm to 6am).

Diversion 

• join M20 coastbound at junction 6
• travel to junction 7 and use the roundabout to return London-bound

7 November - M20 junction 5 coast-bound entry slip

Closed overnight - 8pm to 6am.

Diversion 

• join M20 London-bound at junction 5
• travel to junction 4 and use the roundabout to return coastbound

9 – 11 November - M20 junction 6 coast-bound entry slip

Closed overnight (3 nights - 8pm to 6am).

Diversion 

join M20 London-bound at junction 6 from Running Horse roundabout
travel to junction 5 and use the roundabout to return coastbound

12 – 13 November - M20 coast-bound distributor road from junction 6 exit slip

Closed overnight - 8pm to 6am.

You can still join the distributor via the junction 6 entry slip.

Diversion 

• leave the distributor road at junction 6 exit slip
• use the roundabout to rejoin the M20 at junction 6 entry slip

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Closures

14 November – M20 junction 9 to junction 10a eastbound, full carriageway (including junction 9 eastbound entry slip)

Closed overnight (8pm-6am).

28 and 29 November – M20 junction 9 to junction 10a eastbound, full carriageway (including junction 9 eastbound entry slip)

Closed overnight (8pm-6am).

Diversion 

• exit at junction 9 via the eastbound exit slip
• at the junction 9 roundabout, follow signs for the A20
• turn left at Simone Weil Roundabout onto the A28
• turn left onto A28 Canterbury Road
• at the next roundabout, turn right onto the A2070 (via
• Willesborough Road and Kennington Road)
• at Lacton Interchange
• take the first exit onto the A20 Hythe Road
• continue to the  junction 10a roundabout and re-join the M20 eastbound

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Closures

11 – 20 November - M20 westbound, junction 11 to 10a

Closed overnight (8pm - 6am), Monday to Friday.

Diversion -

• exit at junction 11
• take the first exit at the roundabout onto A20 (Ashford Road)
• stay on A20 to rejoin at junction 10a

HGV diversion (due to weight limit) -

• exit at junction 11 and follow A20 (Ashford Road)
• turn left onto A261 (Hythe Road/London Road), then follow A259
• (Dymchurch Road)
• turn left onto B2071 (Station Road) towards Grand Parade, then
• south on Coast Drive to Battery Road
• follow Battery Road to Dungeness Road, then north to Dungeness Roundabout
• turn right for Harden Road, then follow B2075 (Station Road/Romney Road)
• turn left onto A259 (Lydd Road)
• turn right at Rhee Wall Roundabout onto A2070
• follow A2070 to rejoin at junction 10a

15 November and 23 to 25 November - M20 westbound from  junctions 12 to 11

Closed overnight (8pm-6am).

Diversion - 

• exit at junction 12
• follow the roundabout onto A20 (Ashford Road)
• continue westbound on A20 to re-join at junction 11

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Closures

14–19 September and 21–26 September – M20 Junction 6 westbound distributor road, exit slip road, Lane 1 and hard shoulder.

Closed overnight (8pm – 6am) each weeknight, reopening each morning.

Diversion

• continue to M20 Junction 4
• exit and return eastbound to reach Junction 6

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

To work safely and reduce the impact on people driving through the junction, we've revised our plans:

• temporary traffic lights will remain in place 24/7 while we work
• we haven't planned any daytime lane closures
• we'll work using overnight closures

Closures and diversions

16 November to 3 December - M25 junction 3 roundabout inner ring 

One lane closed overnight (10pm - 6am) on weeknights.

4 and 7 December - northern half of M25 junction 3 roundabout

Closed overnight (10pm - 6am) on each night.

Northern half of M25 junction 3 roundabout diversion map.

8 to 18 December  - southern half of M25 junction 3 roundabout

Closed overnight (10pm - 6am) on weeknights.

Southern half of M25 junction 3 roundabout diversion map.

We'll remove traffic management over the Christmas and New Year holiday period.

Work in 2027

We'll need more overnight closures from January to April 2027.

To minimise disruption, we'll only close one section of the roundabout at a time.

We'll give you more information when we have firm details.Please check back for updates.

Please remember that closures can change at short notice. You can check the latest information on our daily closures page. Our travel alerts give details of live incidents on our network.

Surrey County Council work on the M25 J11

Although the M25 is a National Highways road, the upgrade work at junction 11 is being carried out by Surrey County Council as part of the A320 Housing Infrastructure Scheme (HIF) which supports the delivery of the Runnymede Local Plan.

3 November - M25 clockwise (northbound) junction 11 exit slip

Closed overnight (10pm-5am).

Diversion routes can be found on the A320 improvements webpage.

4 November 2026 to February 2027 - M25 junction 11 clockwise exit slip lane closure

A lane closure will be in place on the junction 11 clockwise exit slip (Gatwick to Heathrow direction). 

Project information

The improvements for M25 junction 11 include:

• building an additional lane on the M25 exit slips in both directions
• full signalisation of the roundabout

The works will increase traffic capacity and improve traffic flows, particularly at peak times and are part of the A320 improvements being delivered by Surrey County Council.

Full information on this scheme and latest updates can be found on the Surrey County Council A320 improvements webpage.