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 signposted 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.

30 March to 1 April - M4 eastbound junction 15 to 14

Closed overnight (9pm-6am)

Diversion:

• travel westbound on the M4 to junction 15 (Badbury Roundabout)
• re-join the M4 eastbound

31 March to 1 April - A34 southbound Oxford and Abingdon (including entry slip at Hinksey Hill Interchange)

Closed overnight (9pm-6am)

Diversion:

• exit at Hinksey Hill Interchange onto the A423 (Eastern Bypass Road)
• join the A4074 at Heyford Hill Roundabout
• continue on the A4074 to Berinsfield Roundabout, then join the A415 westbound
• continue on the A415 to re-join the A34 at Marcham Road Interchange

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.

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.

We're resurfacing the eastern side of the Asda Roundabout in Tilbury to keep the road safe.

Closures

Closed overnight (9pm – 4am) on Thursday 26, Friday 27 and Saturday 28 March.

• A1089 southbound carriageway between the Marshfoot Interchange and Dock Road, including the eastern half of the Asda Roundabout
• Dock Road between the Asda Roundabout and Winchelsea Road in both directions

Diversions

A1089 southbound:

• via Marshfoot Road
• Chadwell Hill
• Linford Road
• Turnpike Lane
• Gun Hill
• Fort Road and
• Windrush Way

Dock Road to A1089:

• via Dock Road
• Calcutta Road
• St Chads Road and
• Marshfoot Road

Dock Road to Tilbury Port:

• via Dock Road
• Calcutta Road
• St Chads Road
• Chadwell Hill
• Linford Road
• Turnpike Lane
• Gun Hill
• Fort Road and W
• Windrush Way

Please note: Turnpike Lane and Gun Hill will be one-way southbound.

Fort Road traffic will be diverted via:

• Coopers Shaw Road
• Church Road
• Blue Anchor Lane
• and Muckingford Road

A1089 southbound and Dock Road diversion route map

Closures can change at short notice. Contingency nights are booked for 30, 31 March and 1 April, but will only be used if needed.

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.

Closures

Monday to Friday nights (plus weekends of 16–17 and 30–31 May)

A2 eastbound and westbound between A2 Dover Road/Coldharbour Lane junction and Whitfield roundabout

Closed overnight (8pm – 6am).

Diversion 

• continue to Brenley Corner roundabout
• follow the A299 and A256
• rejoin the A2 at Whitfield roundabout

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.

Weeknight closures

Monday 18 to Thursday 22 May - A25 Westerham Road westbound and A21 Sevenoaks Bypass southbound exit slip road

Closed overnight (8pm-6am) on weeknights only.

Eastbound safety lane (lane 2) also closed.

Weekend closures

A25 Westerham Road westbound and A21 Sevenoaks Bypass southbound exit slip road

Closed over three full weekends (Friday 8pm to Monday 6am):

• Friday 29 May to Monday 1 June
• Friday 5 June to Monday 8 June
• Friday 12 June to Monday 15 June

Eastbound safety lane (lane 2) also closed.

Weekend night closures

Between 19 – 29 June - A25 Westerham Road westbound and A21 Sevenoaks Bypass southbound exit slip road

Closed overnight (8pm-6am) only on these weekends:

• Friday 19 to Sunday 21 June (closure lifted 6am Monday 22 June)
• Friday 26 to Sunday 28 June (closure lifted 6am Monday 29 June)

Eastbound safety lane (lane 2) also closed.

Diversion –

• take the A21 to the next junction
• Turn around and return to your destination

The diversion is approximately 6.5km and takes 5–10 minutes in normal traffic conditions.

Future works

We're planning more work at this location in July and August 2026. We'll give you more information when we have firm details.

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.

Northbound closure – Patcham to Sayers Common – 8pm to 6am 

• 2 March (1 night)
• 5 and 6 March (2 nights)
• 9 to 13 March (5 nights)

Diversion route: A27, A283, A24, A272

Southbound closure – Bolney to Brighton – 8pm to 6am

• 16 to 20 March (5 nights)
• 23 to 27 March (5 nights)
• 30 and 31 March (2 nights)

Diversion route: A272, A24, A283, A27

For the southbound closure, localised closures and diversion routes will also be in place on adjoining roads leading onto the A23 southbound carriageway.

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.

Weekend closures

We'll fully close the A303/A343 Abbotts Ann junction on these weekends:

• 9pm Friday 17 April – 6am Monday 20 April
• 9pm Friday 24 April – 6am Monday 27 April 

There'll be a signed diversion by:

• Salisbury Road
• Weyhill Road (Monxton junction)
• Winchester Road (Stockbridge junction)

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.

Closures - M25 junction 3 Swanley Interchange

Junction closed overnight (10pm-5.30am) on these four weekends: 

• Saturday 28 February to Monday 2 March
• Saturday 14 to Monday 16 March
• Saturday 21 to Monday 23 March
• Saturday 28 to Monday 30 March

Fully signed diversion routes will be in place for motorway and non-motorway traffic. 

Diversion route map

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.

Closures

9 to 17 March - Link roads connecting M25 clockwise to the M4

Closed overnight on weekdays:

• Monday to Thursday 10pm – 5am
• Friday 11pm – 6am

There'll be no closures on Saturday or Sunday nights.

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.

Closures and diversions

Works take place Monday to Friday, 8pm to 6am.

17–18 April – Membury Services access lane (eastbound)

27 April – 1 May – M4 junction 14 Hungerford eastbound exit and entry slip roads

Diversion: 

Exit slip:

• continue to junction 13
• join M4 westbound and leave at junction 14

Entry slip:

• head westbound to junction 15 and
• turn back onto M4 eastbound

5–8 May – M4 junction 14 Hungerford westbound exit and entry slip roads

Diversion 

Exit slip:

• continue to junction 15 and
• turn to head eastbound

Entry slip:

• continue to junction 13 and
• join westbound

8–12 May – M4 junction 6 Windsor eastbound exit and entry slip roads

Diversion 

Entry slip:

• head westbound to junction 7 and
• turn to rejoin eastbound

Exit slip: 

• continue to junction 5
• turn and head westbound

12–13 May – M4 junction 12 Theale eastbound entry slip road

Diversion 

• Head westbound to junction 13 and
• turn to rejoin eastbound

13–14 May – M4 junction 11 Reading eastbound entry slip road

Diversion 

• Head westbound to junction 12 and
• turn to rejoin eastbound

13–14 May – M4 junction 11 Reading westbound entry slip road

Diversion

• Head to J10 and towards Wokingham
• turn at Copper Beach roundabout back to J10 and
• join M4 westbound

18–19 May – M4 junction 5 Slough westbound entry slip road

Diversion 

• Join M4 eastbound to junction 4
• turn and head westbound

19–20 May – M4 junction 5 Slough eastbound exit slip road (may be removed from scope)

Diversion 

• Continue to junction 4 and
• turn to head westbound

22–24 May – Membury Services access lane and exit (westbound)

26–30 May – M4 junction 7 Huntercombe eastbound and westbound exit and entry slip roads

Diversion 

• Head along the A4 westbound to Castle Hill roundabout
• turn left onto Braywick Road and the A308M to access either direction

Eastbound exit slip:

• continue to junction 6
• turn left onto Tuns Lane and join the A4
• continuing to junction 7 Huntercombe roundabout

26–30 May – M4 junction 6 Windsor westbound entry slip road

Diversion 

• Join M4 eastbound to junction 5
• turn and head westbound

1–3 June – M4 junction 12 Theale westbound exit and entry slip roads

Diversion 

Entry slip:

• head to junction 11
• turn and head westbound

Exit slip:

• continue to junction 13 and
• turn to head eastbound

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.

Closures

23 - 27 March (5 nights) -  M4 junction 6 westbound entry slip

Closed overnight.

Westbound entry slip closure diversion -

From M4 Junction 6 head eastbound on the M4 to Junction 5, then return on westbound and continue on M4 past Junction 6.

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.

We're replacing defective bridge joints, installing new signs and lighting columns at M4 junction 12.

Closures

19 and 20 March

Lane closure on the eastbound exit slip

23 and 24 March

• closure of the west bridge and westbound entry slip
• lane closure on the eastbound exit slip

25 and 26 March

• closure of the east bridge and eastbound entry slip
• lane closure on the westbound exit slip

Signed diversions will be in place.

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.