Mannington to Nursling Overhead Line Refurbishment

Project Overview

From June to November, we will be refurbishing sections of the overhead line from Mannington to Nursling. After partially undertaking the refurbishment in 2023-2024, we will be returning to complete the refurbishment of the remaining parts of the two circuits across the line.

The route, consisting of 115 steel pylons, begins at our substation in Mannington, runs across the north of the New Forest National Park, and ends at our substation in Nursling. To view the route, please see our interactive map here.

We will refurbish 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 refurbishment works, you may see further work to establish access routes, repairs to pylon steelwork, and engineers working at height to replace components of the pylons.

The works will be 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.

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.

More information on the details of any road closures will be available on this webpage soon.

What is happening now?

To enable the first stage of the refurbishment works to start this year, we are currently undertaking inspections of each pylon to assess their condition. We are also preparing the sites surrounding pylons which require refurbishments, which involves clearing any vegetation to ensure safe access. All vegetation clearance is taking place in line with the guidance and consent provided by the relevant authorities.

Once this initial period of preparation is complete, we expect the main works to commence in June 2026.

We anticipate that the refurbishment will be finished towards the end of 2026.

Keeping you informed

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

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 liaison 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).