Maintenance schemes - South West

Maintenance schemes taking place in the South West region.

Project information

View a maintenance scheme

You can view more details about the maintenance schemes taking place in the South West below:

National Highways recognises the environmental value of trees. We manage our trees through their whole lifecycle, to control safety risk and optimise their environmental value.

We began a programme of Ash Dieback removal in 2022. Although the issue still requires careful monitoring, we have now completed most of our clearance work. Over the coming months we will begin replanting the areas most affected by this work. We will plant just over 3,000 new trees along the A30 in Devon and Cornwall, ahead of bird nesting season. Local species such as Hazel, Crab Apple, Holly, Hawthorn, Honeysuckle, European Spindle, Hornbeam and several others in lesser numbers, will be planted in a variety of sizes. The trees have been carefully chosen to ensure local habitats are encouraged to flourish.

The work will take place on verges with some rolling lane closures in place. To find out more visit https://nationalhighways.co.uk/our-roads/south-west/

Ash dieback is a national issue and more information from the Forestry Commission can be found at https://www.gov.uk/guidance/managing-ash-dieback-in-england.

Tree Council - Ash dieback a tree owners guide

https://treecouncil.org.uk/wp-content/uploads/2020/06/Tree-Council-Ash-dieback-tree-owners-guide-FINAL.pdf

We’ll be doing road repairs to extend the life of the A30 Longrock bypass, commencing 12 February 2024. We’ll also be carrying out a world class trial to sections of the eastbound carriageway, to produce a quieter road surface experience.

To minimise disruption, we’ll work overnight when there are fewer vehicles on the road. During the day the road will be open under lane closures. Where possible, we’ll complete the noisiest works before 11pm.

We’ll make every effort to ensure the impact on the local community and travelling public is kept to a minimum. Please accept our apologies in advance for any inconvenience these works may cause.

Traffic management

The works will be carried out under full overnight closures of the A30 Longrock Bypass between 12th February and 28th March 2024, with lane closures during the daytime. These works have been programmed in two phases as follows:

  • Eastbound A30 Longrock bypass closures - Monday 12 February to Friday 15 March 2024
  • Westbound A30 Longrock bypass closures - Tuesday 13 February to Thursday 28 March 2024

Works will be carried out overnight on these dates, weeknights only, between the hours of 8pm and 6am the following morning.

Exact closure times will be subject to traffic flows on each night. Fully signed diversion routes will be in place during the closures and can be viewed below, but please allow extra time for your journey.

We’ll make every effort to ensure the impact on the local community and travelling public is kept to a minimum. We always aim to work to the programme, however unforeseen circumstances or adverse weather conditions may mean changes. Please monitor www.trafficengland.com to keep updated.

We’ll be carrying out essential maintenance works on sections of the A36 between Bathampton and Salisbury. Our work will include, but isn’t limited to road resurfacing, and renewing road markings and sensors.

The work will start on the evening of Wednesday 21 February and finish on the morning of Tuesday 19 March, and will take place overnight between the hours of 8pm and 6am.

To minimise disruption, the majority of work will take place on weeknights only when there are fewer vehicles on the road. During the day we will keep the road open as usual.

Closure details

  • Wednesday 21 to Saturday 24 February - full overnight closure of the A36 from Bathampton (Trossachs Dr) to Beckington roundabout, for 3 weeknights from 8pm until 6am the following morning.
  • Monday 26 February to Saturday 9 March – full overnight closure of the A36 near Salisbury (Quidhampton) between Wilton and St Pauls’ roundabouts, for 10 weeknights from 8pm until 6am the following morning.
  • Wednesday 13 to Tuesday 19 March - full overnight closure of the A36 near Fisherton De La Mere, between Cotley Hill roundabout and Deptford junction. For 6 nights including the weekend, from 8pm until 6am the following morning.

Access for residents will be maintained but may involve a short delay depending on our stage of work. Please show a copy of this postcard or speak to our gatemen who will escort you through the works if necessary.

Diversion routes

Between Bathampton (Trossachs Dr) and Beckington roundabout:

Near Salisbury (Quidhampton), between Wilton and St Pauls’ roundabouts:

Near Fisherton De La Mere, between Cotley Hill roundabout and Deptford junction:

We’ll make every effort to ensure the impact on the local community and travelling public is kept to a minimum. We always aim to work to the programme, however unforeseen circumstances or adverse weather conditions may mean changes. Please monitor www.trafficengland.com to keep updated.

The A36 is the most direct route from Bath to Southampton. It's mainly single carriageway and runs for approximately 63 miles through various villages, towns and cities. Parts of the route date back to Roman times.

Cracking has been observed in the southbound section of the footpath running between Limpley Stoke and Monkton Coombe. The extent of the cracking lies within the Bath, Somerset and Wiltshire boundaries. We're currently carrying out detailed surveys to fully understand the scale of the geological defect and monitor movement and groundwater levels within the slope. Safety is our number one priority and traffic management will remain in place to safeguard pedestrians and motorists until our surveys are complete.

A36 Limpley Stoke - March 2022 update

A36 Limpley Stoke - February 2023 update

 

A38 Glynn Valley will be closed overnight for routine maintenance from 8.30pm in the evening to 6am the following morning:

2024

  • 18 to 22 March
  • 18 to 22 November

2025

  • 17 to 21 March
  • 17 to 21 November

Please note these dates may be subject to change.

When overnight closures are in place, please use the following diversion:

Saltash Tunnel will be closed overnight for routine maintenance from 8pm in the evening to 6am the following morning:

2024

  • January 9, 10 and 11
  • April 9, 10 and 11
  • July 9, 10 and 11
  • October 8, 9 and 10

2025

  • January 7, 8 and 9
  • April 8, 9 and 10
  • July 8, 9 and 10
  • October 7, 8 and 9

Please note these dates may be subject to change.

UPDATE: November 2023

  • 9 January to 29 March 2024 – overnight closures of Saltash tunnel and up to Carkeel roundabout. 2-way traffic lights will be in place on the B3271/North Road

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As part of our commitment to safety and air quality, we will shortly begin works to permanently reduce the speed limit between Saltash Tunnel and Carkeel roundabout, from 70mph to 50mph. Average speed cameras will be installed to enforce the 30 mph through the tunnel and we’ll also install average speed cameras on the diversion route through Saltash (the B3271, North Road).

This stretch of the A38 is prone to a high number of shunts and near misses as motorists try to reduce speed on the approach to the tunnel or roundabout. Reducing the speed limit will improve safety and alleviate the need for heavy braking, which in turn should improve air quality.

This is part of a larger package of work affecting Saltash Tunnel, we’ll write with further details nearer the time.

 

Traffic management

We’ll work overnight Monday to Friday when traffic flows are lowest. Work will take place from 8pm in the evening to 6am the following morning.

  • 18 to 30 September – overnight closures of Saltash tunnel
  • 2 to 24 October – overnight closures of Saltash tunnel and up to Carkeel roundabout
  • 25 October to 7 November – overnight 2-way traffic lights will be in place on the B3271/North Road

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

Please note: all enquiries should be directed to National Highways, and not to Tamar Bridge which is independently owned and operated by Cornwall Council and Plymouth City Councils.

We’ll be carrying out post tension structure inspections on the M4 junction 17 gyratory at Stanton St Quintin. Surveys will first take place on the underside of the bridges, then switch to the top of the junction.

We’ll start by working overnight when traffic flows are at their lowest, with lane and hard shoulder closures in place on the M4 to allow us to carry out the work safely. During the day the road will be open as usual.

We'll then switch to 24/7 working with lane closures and a reduced speed limit in place during the week. Lanes will be reopened for the weekends. No work will take place over the Easter period and there will be no traffic management in place.

Traffic management
4 March to Mid- May 2024, surveys to the underside of the bridges - overnight lane and hard shoulder closures on the M4 at junction 17
Mid-May to Mid-July 2024, surveys on the top of the junction/gyratory - We’ll switch to 24/7 working with lane closures and a reduced speed limit in place during the week. Lanes will be reopened for the weekends. No work will take place over the Easter period and there will be no traffic management in place.

Please accept our apologies in advance for any inconvenience which may be caused. We’ll make every effort to ensure the impact on the local community and travelling public is kept to a minimum. We always aim to work to the programme, however unforeseen circumstances or adverse weather conditions may mean changes to the above dates.

We're carrying out essential inspection works on the B3130 Tickenham Road bridge which crosses the M5 to the north of junction 20. This work is part of a routine programme to help us understand what future maintenance this bridge might need.

The work will start on Monday 5 February and finish on Friday 5 April and will take place Monday to Friday. To minimise disruption, we’ll keep one lane open for traffic for the duration of the works, 24-hour traffic signals will remain in place for the duration of the works.  Work will begin on the north side of the road for four weeks, then switch to the south side.

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