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Branch Report: 21st November 2007

Liquefied Natural Gas Pipeline - Charlie Sirs, National Grid

 Meeting held at the Glamorgan Arms, Pontlliw, Near Swansea

The South Wales Branch was pleased to welcome Tim Parry of the Quarry Products Association to their November Meeting. Mr Parry gave a short address prior to the main meeting on the services and information available from the QPA. He gave members an introduction to the website and showed the links which can be accessed, providing valuable information with video clips and toolbox talks. Mr Parry encouraged members to make full use of these services, including the use of rooms at the QPA offices, which are available for meetings. 

The main speaker was Mr Charlie Sirs, Deputy Project Manager, National Grid, with a presentation on the Natural Gas Pipeline from Milford Haven to Aberdulais, and the continuation of the pipeline to Tirley in Gloucestershire. The project, together with the world’s largest LNG importing terminal at South Hook, Pembrokeshire, were required to provide 20% of Britain’s gas supplies. The initial format for the pipeline was not accepted. The final permission was given in 2005, for the original 120km and additional 90 km in the same timescale, with some 90 conditions. Many issues had to be taken into account and involved several agencies, the Secretary of State for Trade and Industry, Town and Country Planning, and The Environment Agency, Wales.  

This was the largest project ever undertaken by National Grid, and the statistics speak for themselves. The pipeline traverses the Brecon Beacons National Park, makes 44 river crossings, passes under 142 roads, one under the M4 motorway, and under 12 railway lines. The pipeline was imported into Milford Haven in 13500 individual lengths by 70 ships movements. In constructing the pipeline there were 20,000 individual welds, equating to 400 miles of weld, with remarkably few failures. 

Some 700 machines were used on site with 2340 employed. 700,000 tonnes of imported local stone was used for construction of temporary access roads, which was now being made available to farmers free of charge – which did not please many members!!           

The many environmental issues included soil storage, rerouting to avoid and protect trees, the protection of fish resources and nesting birds.           

The Milford Haven to Aberdulais section was commissioned on 5th November 2007, 100 minutes before the contract deadline. The final section is to be commissioned by 5th December 2007, and the pipeline will begin to transport gas by the end of 2008.

The Branch would like to thank Aggregate Industries for their generous sponsorship of this meeting, held at The Glamorgan Arms, Pontlliw.

Charlie Sirs, Deputy Project Manager, National Grid