On Friday, 6 March 2026, the first weld of the 36-inch Main Onshore Pipeline (the Pipeline) was completed. This milestone marks a significant step in the programme and officially commences the construction phase.
The first weld was:
With construction of the Pipeline now underway, welding and installation activities will continue along the route over the coming weeks. Updates on the construction progress will be shared in advance via the Latest News section of the HyNet Hub.
Image of the UI project team in front of the first Pipeline weld
Key details
The first weld was:
- Completed in line with the approved Welding Procedure Specification, which sets out the formal requirements for welding activities.
- Carried out to the British Standard (BS 4515-1:2009).
- Undertaken in full alignment with the Pipeline's Health and Safety Executive (HSE) requirements.
- Successfully coordinated between the construction, quality assurance and control, engineering and HSE teams.
Next steps
With construction of the Pipeline now underway, welding and installation activities will continue along the route over the coming weeks. Updates on the construction progress will be shared in advance via the Latest News section of the HyNet Hub.
Image of the UI project team in front of the first Pipeline weld