T-pylons between Sandford and Portbury

In July 2022, we started work to build the northern section of the Hinkley connection between Sandford and Seabank substations.

68 T-pylons are being constructed for part of the route between Sandford and Portbury. The T-pylons will join a line of 27 traditional lattice pylons being built in Avonmouth, to make the final connection into the substation at Seabank - the northernmost point of the Hinkley Connection.

We expect all the lattice and T-pylons between Sandford and Avonmouth, a combined total of 95 new pylons, to be complete, including hanging of the wires by the end of 2023.

During the work to install the wires between the pylons, we’ll use controlled lifting systems and erect scaffolding where the wires cross over roads.

To keep everyone safe while we work on the highways, we put up temporary traffic lights and close some roads for a short time. Our contractors will put up advance notice signs to let local road users and businesses know of any roadworks and traffic management in the area.

Piling foundations

We are continuing to build the foundations for the new pylons which involves driving concrete and steel piles into the ground. 

Piling at each site takes approximately one week and we publish a monthly schedule to show the locations in which we’re working.