We have undertaken pre-installation works including the installation of a temporary bridge over the River Bourne. This involved vegetation removal in our working areas, installation of temporary foundations and construction equipment and materials being brought onto Chertsey Meads. 

We started open cut installation through the SANG in June 2022. Works will likely take place until August 2022.

Reinstatement will take place directly after the main installation works in September 2022.

The map above provides information on installation within the SANG. Further information on our construction plans can be found below.

About installation

During installation, Heras-type fencing bolted together, or strong-wall fencing, is being used to secure the working area.

You may also see mobile welfare units, equipment, materials and vehicles within the working area.

During the open cut installation process, you may see deliveries of the steel pipes. These will be brought to site in a ‘just-in-time’ delivery sequencing – this is because we want to reduce the space needed for the compound within the SANG. We will also have 24-hour security of the working areas within the SANG.

Access to Chertsey Meads will be available throughout installation. If there are any areas of closure, including footpath diversions, we will notify the community in advance.

The car parks serving Chertsey Meads will remain open throughout installation.

We are using an open cut technique to install through the SANG. This work started in June 2022. Works will likely take place until August 2022.

Fencing material has been selected to reduce the visual impact on the SANG, maintaining low visibility of the working area.

We are using a Horizontal Directional Drill (HDD) trenchless technique to install under the River Thames. This work started in June 2022. Works will likely take place until October 2022. 

Before starting installation, pre-construction activities took place including installation of a new temporary bridge over the River Bourne.

We will work with the Chertsey Agricultural Show to limit impacts to the Show and along Mead Lane.

Our working areas are fully secure with locked gates and 24-hour security.


Where the topsoil has been stripped and stored, this will then be replaced after the works have been completed and either reseeded or left to naturally regenerate, following discussion with Runnymede Borough Council.

The vegetation reinstatement will be subject to a five-year aftercare.