South East - Maintenance schemes

Maintenance schemes taking place in the South East region.

The latest maintenance schemes that will be running in this area can be found below in the 'Project information area'.

Project information

Find out where we're taking action to remove or make safe trees affected by Ash Dieback.

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.

Closures

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

8 to 18 December - A3 southbound from Berelands to A3(M) junction 2

full carriageway closures overnight (9pm - 6am)

18 and 19 December - A21 in both directions from Johns Cross Roundabout to Junction Road (Baldslow)

full carriageway closures overnight (8pm-6am)

Diversion:

There'll be a signed diversion by:

A2100 (London Rd, High St/Upper Lake,Lower Lake, Battle Hill, Hastings Rd, The Ridge W)
A2690 (Queensway)
Whitworth Rd

5 to 6 January - A404 junction 9a

A404(M) junction 9a southbound exit slip closure (9pm-6am)

Diversion:

southbound to Holyport Interchange and return to A404(M)

6 to 10 January 2026 - A31 westbound from M27 junction 1 to A31 Poulner Hill

full carriageway closures overnight (9pm - 6am)

Diversion:

There'll be a signed diversion by local roads, re-joining the A31 at Ashley Heath.

12 - 15 January 2026 - A27 westbound from Warblington to Harts Farm

full carriageway closures overnight (9pm-6am)

Diversion:

There'll be a signed diversion on local roads.

leave the A27 at Warblington and re-join at Harts Farm

12 - 15 January 2026 - A34 northbound Hinksey Hill interchange to Botley interchange

full carriageway closure northbound from Hinksey Hill Interchange to North Hinksey (9pm-6am)

Diversion:

Diversion by local authority roads to A34 Peartree roundabout and return to A34 southbound

14 - 17 January 2026 - A404 northbound between Bisham roundabout and Westhorpe interchange

full carriageway closure northbound from Bisham roundabout to Westhorpe Interchange (9pm-6am)

Diversion:

A404 southbound
A4130 westbound
and A4155 northbound to Westhorpe Interchange

15 - 17 January 2026 - A34 northbound Botley Interchange to Godstow (Seacourt Lane entrance)

full carriageway closure northbound from Botley Interchange to the entrance of Seacourt Lane (9pm-6am)

Diversion:

A34 southbound from Botley Interchange to Hinksey Hill Interchange
A423
A4142
A40
A44 to Peartree Roundabout and return on A34 southbound

19 - 27 January 2026 - A34 northbound Marlow to Handy Cross

full carriageway closure of A404 northbound and northbound entry slip road closure at Westhorpe Interchange (9pm-6am)

Diversion:

A4155 eastbound
A409 northbound
A40 westbound
re-join A404 southbound from Handy Cross roundabout

24 to 27 February 2026 - A404 southbound between Bisham interchange and Henley Road junction

full carriageway closures overnight (9pm to 6am)

We'll also fully close Dungrove Hill Lane.

Diversion:

take the A404 northbound to Westthorpe Interchange
then take Little Marlow Road
Marlow Road
Henley Road (A4155)
Northfield End
New St
Thameside
White Hill (A4130)
and Henley Road

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

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

You can view more details about the maintenance schemes taking place on the A1(M) below:

You can view more details about the maintenance schemes taking place on the A1089 below:

We’re installing new maintenance access points in the A1089 central reservation barrier.

New access points will allow us to divert traffic onto the opposite carriageway when we close the A1089 north or southbound during maintenance. This will reduce long-term disruption in future .

Closures and diversions

We’ll carry out overnight closures to complete the work safely.

Monday 13 October and Saturday 22 November - A1089 southbound between Asda roundabout and Port of Tilbury entrance

Closed overnight (9pm - 4am) on weeknights.

Diversion

Our diversions will use Marshfoot Road, Chadwell Hill, and Fort Road.

For safety, narrow roads such as Gun Hill, Turnpike Lane and Blue Anchor Lane, will become a one-way system overnight.

We'll lower speed limits through residential areas each night for safety until we re-open the A1089 each morning.

Monday 13 October to Friday 7 November - A1089 northbound between the Port of Tilbury entrance and Asda Roundabout.

Closed overnight (9pm - 4am) on weeknights.

Diversion

You’ll be diverted by:

Windrush Way eastbound
Gun Hill, Turnpike Lane northbound
Linford Road westbound
Chadwell Hill southbound
Marshfoot Road westbound to the A126 / A1089 Marshfoot Interchange

A temporary one-way system will operate overnight in a clockwise direction on the following roads:

Gun Hill
Turnpike Lane
Muckingford Road
Blue Anchor Lane
Church Road
Coopers Shaw Road.

Traffic from Rectory Road will need to turn right onto Turnpike Lane or Church Road

Monday 10 to Friday 14 November - A1089 southbound between Asda Roundabout and Port of Tilbury entrance

Closed overnight (9pm - 4am) on weeknights.

Diversion

You’ll be diverted by:

The A1089 / A126 Marshfoot Interchange
Marshfoot Road eastbound
Chadwell Hill northbound
Linford Road eastbound
Turnpike Lane, Gun Hill southbound
Windrush Way westbound

A temporary one-way system will operate overnight in a counter clockwise direction on the following roads:

Coopers Shaw Road
Church Road
Blue Anchor Lane
Muckingford Road
Turnpike Lane
Gun Hill

Traffic from Rectory Road will need to turn left onto Gun Hill or Blue Anchor Lane

Monday 17 to Friday 21 November - A1089 between the Asda Roundabout and A13

Closed overnight (9pm - 4am) on weeknights.

We'll share more details shortly.

Our second phase of work, between the Asda Roundabout and A13, will take place in 2026. Please check back for updates.

This work isn’t part of the Lower Thames Crossing project, but we'll keep the project informed on our progress and coordinate work where necessary.

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

You can view more details about the maintenance schemes taking place on the A2 below:

You can find more details about the maintenance schemes taking place on the A20 below:

You can find more details about the maintenance schemes taking place on the A2070 below:

You can find more details about the maintenance schemes taking place on the A21 below:

You can find more details about the maintenance schemes taking place on the A23 below:

The A23 in West Sussex will be closed between Patcham, Sayers Common and Bolney on the following nights:

Patcham to Sayers Common

Monday 24 November for 5 nights
Monday 1 December for 5 nights
Monday 8 December for 5 nights
Monday 15 December for 4 nights
Tuesday 7 January for 3 nights
Monday 12 January for 5 nights
Monday 19 January for 5 nights

Bolney to Patcham

Monday 2 February for 5 nights
Monday 9 February for 5 nights
Monday 16 February for 5 nights
Monday 23 February for 5 nights

You can find more details about the maintenance schemes taking place on the A259 below:

You can find more details about the maintenance schemes taking place on the A26 below:

Works

We’ll soon be returning to complete our resurfacing works to the A26 from Beddingham roundabout to The Hollow junction on the A26.

Closure and Diversion

The A26 will be closed in both directions from Monday 15 December for five nights (8pm to 6am).

A signed diversion will be in place by

A259
Wilson Road
Warren Road
B2123 Falmer Road
A27

For residents and businesses with direct access from the A26, we'll be on site to escort you to your property, please approach the closure point.

There will be telecom systems in place within the closure to enable you to alert our traffic management team you are wanting to leave your property, please press the button and await an escort.

Please note these works will generate noise for which we apologise in advance.

You can find more details about the maintenance schemes taking place on the A260 below:

You can find more details about the maintenance schemes taking place on the A27 below:

Closures

19-28 January 2026 (7 nights excluding weekend) – A27 westbound carriageway from Fontwell East Roundabout to Boxgrove Roundabout

Fully closed overnight (9pm to 6am).

Westbound diversion:

from the A27 Crossbush roundabout, take the A284/B2284 Lyminster Road toward Wick
at the Wick Roundabout, take the A259 toward Chichester
re-join the A27 westbound at Bognor Road roundabout

You can find more details about the maintenance scheme taking place on the A228 below:

You can find more details about the maintenance scheme taking place on the A282 below:

You can find more details about the maintenance schemes taking place on the A3 below:

You can find more details about the maintenance schemes taking place on the A303 below:

You can find more details about the maintenance schemes taking place on the A30 below:

You can find more details about the maintenance schemes taking place on the A31 below:

Works

We’re carrying out lighting renewal works at Ringwood roundabout including the slip roads.

To enable us to carry out these works safely, there will be overnight closures to the slip roads and traffic management on the roundabout.

Works will be Monday to Friday between the hours of 8pm to 6am.

Closures

A31 lane closure on outside lane of roundabout

Monday 20 October for four nights

A31 eastbound entry slip road closure

Wednesday 22 October to Tuesday 18 November
Monday 26 January for one night (resurfacing works)

A31 westbound exit slip road closure

Wednesday 19 November to Tuesday 16 December
Tuesday 27 January to Friday 30 January (resurfacing works)

A31 eastbound exit slip road closure

Wednesday 17 December to Friday 19 December
Monday 5 January to Friday 23 January (including resurfacing works)

There will be a signed diversions in place for the closures.

These works will generate some noise, for which we apologise in advance. To minimise noise impact, we’ll be using temporary acoustic barrier.

These works are weather dependant, dates may change.

For more information, visit our webpage nationalhighways.co.uk/se-maintenance.

You can also call our Contact Centre on 0300 123 5000 open 24/7, who will direct your query to the team, or email: info@nationalhighways.co.uk.

You can find more details about the maintenance schemes taking place on the A34 below:

You can find more details about the maintenance schemes taking place on the A40 below:

You can find more details about the maintenance schemes taking place on the A404 below:

You can find more details about the maintenance schemes taking place on the B2500 below:

You can find more details about the maintenance schemes taking place on the M1 below:

Work

We're replacing 17-year-old traffic signals at the A405 North Orbital Road junction with the M1 to maintain safety and journey time reliability.

Closures and diversions

Work runs from 13 October to 22 December 2025 using overnight lane closures and temporary signals.

Final stages require full overnight road closures for resurfacing, detection loop installation and road marking renewal.

Upcoming closures (10pm-5:30am):

A405 northbound: 4-7 December (four nights) - closed between M1 junction 6 and M25 junction 21a
A405 southbound: 8-11 December (four nights) - closed between M25 junction 21a and M1 junction 6

Fully signed diversions will be in place.

During southbound closures, there will be no access to Oakwood Road or Mount Pleasant Lane from the A405, though local access remains via Park Street Lane or M1 junction 6 slip roads.

Work remains on schedule for completion by 22 December. Temporary signals will stay in place 24/7 until new signals are commissioned.

You can find more details about the maintenance schemes taking place on the M11 below:

You can find more details about the maintenance schemes taking place on the M2 below:

We'll use a series of overnight lane closures on the M2 between Farthing Corner and Hartlip while we work.

This means access to Moto Medway services will be restricted overnight on these dates:

13 to 17 October - Moto Medway services eastbound entry and exit

closed overnight (8pm - 6am) weeknights

29 October to 7 November - Moto Medway services eastbound entry and exit

closed overnight (8pm - 6am) weeknights

8 to 12 December - Moto Medway services westbound entry and exit

closed overnight (8pm - 6am) weeknights

15 to 19 December - Moto Medway services westbound entry and exit

closed overnight (8pm - 6am) weeknights

We're replacing 17-year-old traffic signals at the A405 North Orbital Road junction with the M1 to maintain safety and journey time reliability.

Work runs from 13 October to 22 December 2025 using overnight lane closures and temporary signals.

Final stages require full overnight road closures for resurfacing, detection loop installation and road marking renewal.

Upcoming closures (10pm-5:30am):

A405 northbound: 4-7 December (four nights) - closed between M1 junction 6 and M25 junction 21a
A405 southbound: 8-11 December (four nights) - closed between M25 junction 21a and M1 junction 6

Fully signed diversions will be in place.

During southbound closures, there will be no access to Oakwood Road or Mount Pleasant Lane from the A405, though local access remains via Park Street Lane or M1 junction 6 slip roads.

Work remains on schedule for completion by 22 December. Temporary signals will stay in place 24/7 until new signals are commissioned.

You can find more details about the maintenance schemes taking place on the M20 below:

Slip road closures

Monday 5 to Wednesday 14 January 2026 - M20 junction 9 eastbound on-slip

Closed overnight (8pm - 6am).

Thursday 15 to Wednesday 21 January 2026 - M20 junction 10 eastbound exit slip

Closed overnight (8pm - 6am).

Thursday 22 January to Monday 2 February 2026 - M20 junction 10a westbound entry slip

Closed overnight (8pm - 6am).

Tuesday 3 to Wednesday 11 February - M20 junction 10 westbound entry slip

Closed overnight (8pm - 6am).

You can find more details about the maintenance schemes taking place on the M23 below:

You can find more details about the maintenance schemes taking place on the M25 below:

Work

We’re replacing 17 bridge bearings to ensure the continued safety of the bridge which carries the M25 over the Great Western Main Line, near Iver Station (IVR) in Buckinghamshire.

To access the bridge safely, we’ll close a 160-metre stretch of the hard shoulder on the anticlockwise carriageway for twelve months.

The four M25 running lanes and the national speed limit will be maintained; allowing us to work efficiently with minimum disruption to journeys.

We’ll erect scaffolding access under the M25, which we’ll need to do at Christmas time while Network Rail are doing planned engineering works.

Closures

Wednesday 24 December to Sunday 28 December 2025 (10pm to 6am)

Overnight lane closures,

To safely install scaffolding and a works access area on the hard shoulder:

Lanes 1, 2 and 3 will be closed overnight on the M25 anticlockwise carriageway, between 10pm and 6am, from Wednesday 24 December to Sunday December 2025
Lane 4 will remain open to traffic
The M25 clockwise carriageway won’t be affected

The hard shoulder closure and scaffolding access will then remain in place 24 hours a day, with no impact on rail services.

Our hard shoulder closure will cover a short distance of ~160 metres.

In the unlikely event of a breakdown adjacent to our work area, you can find further advice Driving on motorways - National Highways.

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

You can find more details about the maintenance schemes taking place on the M271 below:

You can find more details about the maintenance schemes taking place on the M3 below:

There will be both day and night time lane restrictions and hard closures on the northbound M3 between Junction 6 (Black Dam interchange) for Basingstoke and junction 5 for Hook.

Thursday 11 December (9pm to 6am)

Lane 1 and 2 closed

Friday 12 December until Wednesday 17 December (closed 24/7)

Hard shoulder will be closed 24/7

We'll put signposted diversions in place while we work.

We'll close the M3 exit slips at junction 5 for Hook on these dates:

The northbound exit slip road closed from 9pm Friday 12 December through to Monday 15 December (6am).
The southbound exit slip closed each night on Tuesday 16, Wednesday 17 and Thursday 18 December.

There will then be a weekend closure of the southbound exit slip road from 9pm Friday 19 December through to 6am on Sunday 21 December.

Diversions for all slip road closures

You'll be diverted to Junction 4a of the M3, which will add 16 minutes to journey times.

You can find more details about the maintenance schemes taking place on the M4 below:

Documents

Traffic information

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

Contact us

info@nationalhighways.co.uk

0300 123 5000

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