South West - Maintenance schemes

We're resurfacing, replacing signs and clearing vegetation.

Closures

1 to 18 July - A35 in both directions between Axminster and Bridport

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

Here's more information about where we're working and what we're doing in July.

19 July to 8 August - A35 in both directions between Bridport and Dorchester

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

10 to 15 August - A35 Dorchester Bypass in both directions

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

17 August – 5 September - A35 in both directions between Stinsford and Bere Regis

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

Map of closure locations.

We'll put signed diversions in place. Please follow signed routes, not Satnav instructions.

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 

February 2026 

The scheme will begin with ten days of work to clear vegetation from 16 February with weekday northbound lane closures between 7am until 5pm. 

April – November 2026 

The repair works to the wall will take place from 7 April until November 2026 

We need to close sections of the northbound lane of the A36 using temporary traffic lights 24 / 7 to complete the work safely.

At certain points we'll be working on two sections of the route at the same time.

The lane closures will be less than 200m long and our teams will be on site to monitor and manage traffic queues to minimise delays as much as possible. 

While disruptive, temporary traffic lights allow us to complete complex work that can’t be done overnight, as safely and quickly as possible. 

We always aim to work to the programme, however unforeseen circumstances or adverse weather conditions may mean changes.

Please plan ahead and allow plenty of time for your journeys. 

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

Bloor Homes and Montel Civil Engineering are developing land at Stoketon Cross for new housing.

This includes:

• a new access roundabout onto the A38
• two new access junctions.

Bloor Homes and Montel Civil Engineering will need traffic management at various locations while they work.

For more information, visit Montel Civil Engineering.

We're undertaking drainage work on the M4 eastbound between junctions 18 and 17 from February 2026 until April 2027.

There will be lane closures on the M4 between junctions 18 and 17 until the end of October to allow us to undertake enabling work. 

There will be a 50mph speed limit between November 2026 and April 2027 with narrow lanes in place on the M4.

While disruptive, narrow lanes with a 50mph speed limit allow us to complete complex work that can’t be done overnight and help us stay on track to meet our project completion date in 2027. 

What to expect

November 2026 to January 2027 

The M4 will have three narrow lanes running eastbound 24/7 between junction 18 and 17 with a speed limit of 50mph.

Full overnight closures of the M4 will be required to install and remove the narrow lanes.

Signed diversions will be in place via Chippenham for full M4 closures.

Upcoming closures

2 to 6 November 2026

The M4 eastbound will be closed overnight (8pm-6am) between junctions 18 and 17. 

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.