Preparing to build new 400,000 volt pylons from Sandford to Seabank

We’re carrying out surveys along the route of a new overhead line from Sandford substation to Seabank substation (approximately 31.2 km).

The findings will help us to plan the final designs for the overhead line, the temporary road entrances and the haul roads needed to access the new pylon locations.

The surveys include:

  • Ecological and topological studies, which involve staff walking along the route.
  • Drainage tests. We will spend about a day at each pylon and road access location.
  • Trial boreholes to study soil and ground conditions. These will involve using a mobile drilling rig.
Mobile drilling rig

Other preparations over the coming months will include carrying out ecological mitigation and clearing some vegetation and hedgerows, as well as erecting stock fencing along the route of the new overhead line.

Working hours

Our agreed standard working hours are between 7am and 7pm Monday to Friday and 8am to 5pm on weekends.

Most work will be carried out on weekdays, although there may be occasions when we’ll need to work at weekends or outside the standard hours. These may include when we are working on a continuous process or if adverse weather or ground conditions cause delays, or to avoid traffic delays during the week, but there are restrictions to this.

Programme of work for the T-pylons

Once the surveys are complete, construction of the road accesses will start later in 2020 and we’ll start building the pylons in 2021. We’ll provide more detailed information on the construction programme when it is available.

Traffic management

When we’re surveying the roads our contractor, Balfour Beatty, will need to manage the traffic to keep public and our workers safe. This will involve using temporary traffic lights or ‘stop/go’ boards. We will inform local residents and businesses ahead of any temporary traffic measurements are put in place.

Social distancing

We have carried out risk assessments and a full review of the work we are doing to make sure we can carry it out safely.

We have introduced strict measures to protect our workers and local communities. These include:

  • Reducing the number of workers on site
  • Restricting travel between our sites
  • Installing additional handwashing facilities and welfare units

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