Mannington to Nursling Overhead Line Refurbishment

Project Overview

We are refurbishing sections of the overhead line from Mannington to Nursling between June and early 2027. After partially undertaking the refurbishment in 2022-2023, we have returned to complete the refurbishment of the remaining parts of the line.

The route, consisting of 115 pylons, begins at our substation in Mannington, runs across the north of the New Forest National Park, and ends at our substation in Nursling.  

You can view the route using our interactive map by clicking here.

We are refurbishing each circuit separately to allow electricity provision to be maintained throughout the project, and therefore there will be no disruption to your electricity supply during these works.

We are committed to investing in the ongoing refurbishment of our network to ensure that it continues to meet the needs of our customers and communities in the future. This maintenance work is needed to ensure a reliable supply of electricity to homes and businesses.

What you can expect to see

During the main refurbishment works, you may see work to establish access routes, engineers working at height to replace equipment and conductors.  

The works are being carried out by Balfour Beatty, on behalf of National Grid.

We do not anticipate that the works will cause significant disruption, but you may hear some noise whilst we are working on pylons or notice some construction vehicles in your local area.

Closures to roads and public rights of way

In some areas where the overhead line intersects with roads, footpaths and bridleways, temporary closures may be required to ensure the safety of members of the public and workers. We will ensure that these closures will be kept to a minimum and that they are communicated with local communities in advance of them taking place to reduce disruption.

In some areas you may see temporary ‘stop and go’ traffic management measures put in place. These measures are not expected to last longer than 15 minutes at a time and are expected to cause minimal disruption.  

Where a road, lane or footpath closure is anticipated to last longer than this, we will provide updates to those living in the local area to ensure they are informed and know what to expect.

Rockbourne Road - Notice of traffic management and road closures

40mph Speed limit 

There will be a speed limit of 40mph in place from Tuesday 27 October on Rockbourne Road between its junction with Court Hill and its junction with Rockbourne Trout Farm. 

This is so that our works can safely go ahead without a continuous road closure, keeping disruption to a minimum. The speed reduction will be in place until scaffolding is removed, this is expected to be before Friday 27 November.

Road Closure 

To undertake our work in the area safely, we will need to temporarily close Rockbourne Road for a few short periods in November. We’ve tailored our working hours to reduce impacts on school drop off and pick up times. 

We expect to close Rockbourne Road between 9am and 3pm on the following dates:

•    Tuesday 3 November and Wednesday 4 November
•    Thursday 12 November and Friday 13 November
•    Tuesday 24 November and Wednesday 25 November

Outside of working hours there will be unrestricted access for road users along Rockbourne Road, the speed limit will remain in place. 

A diversion route which runs via Court Hill and Rockbourne Lane through Damerham is being put in place and will be signed appropriately. Please refer to the map below, which shows the location of the road closure and the diversion route. 

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What is happening now?

We have now started our second phase of works, which are expected to last until early 2027.

Keeping you informed

We will update this webpage and our FAQs with more information as the project progresses. For some areas, updates will be provided by email or post before we begin our work. 

We have also set up a WhatsApp channel which will share the latest updates on any road or footpath closures, and this can be joined using the QR code below:  

To sign up to receive updates about the project, please use this link.

Any questions?

For more information about the refurbishment works please visit our FAQs page here.

If you have any questions, please do not hesitate to get in contact with our dedicated community relations team via: 

• Email: [email protected]
• Freephone: 0800 099 6087 (between 9am-5pm, Monday to Friday. Unanswered calls will be directed to voicemail, where our team will aim to respond to your message as soon as possible).