- Back
- Connections
- Engineering Solutions
- Network and infrastructure
- Innovation
- Environment and net zero
- Who we are
- Contact us
T-pylons between Sandford and Portbury
National Grid is progressing building the north section of the Hinkley Connection route between Sandford and Seabank substations.
The 68 new T-pylons between Sandford and Portbury will join a line of 27 lattice pylons through Avonmouth to make the final connection Seabank substation.
We expect the 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’re using controlled lifting systems and erecting 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 contractor, Balfour Beatty, put up advance notice signs to let local road users and businesses know of any roadworks and traffic management in the area.
Piling foundations
Work to build the foundations for the new pylons which involves driving concrete and steel piles into the ground is nearing completion. This schedule shows the remaining locations.