Gwynt-y-Mor Diversion

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The project comprised of the diversion of approximately 650m of the 914mm NB Steel High Pressure (VN082) section of pipeline to accommodate the installation of a new electrical substation for nPower Renewables Limited, in an area of land just south of the St Asaph Business Park in Denbighshire.

The extent and nature of the works was such that the new diversion removed the existing pipeline from areas of conflict within the new substation site development. Operational constraints on the gas supply system meant that the supply could not be interrupted at any time, and therefore tie-ins were carried out by means of hot tap connections. Isolation of the redundant mains occurred by means of a single stopple and cut and cap at each end.

Long O Donnell Associates were commissioned to provide full Project Support Services including Project Management, Quantity Surveying, Cost Engineering Services, CDM Co-ordination Services, Health, Safety and Environmental Services, Risk Management, Programme Management and QA/QC Inspection Services to support Wales & West Utilities to deliver the Gwynt-Y-Mor Pipeline Diversion project at various stages throughout the project.

We were appointed at the outset of the design stage and our senior project manager ensured completion of the conceptual and detailed design stages was done in accordance with gas design requirements. Following this our team ensured that the environmental and health and safety development stages of the project were completed whilst establishing project budgets and programmes for the successful construction phase.

Client

Wales & West Utilities

Project Value

£1.6M

Project Duration

12 months

Services Provided

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Gwynt-y-Mor Diversion,

The project comprised of the diversion of approximately 650m of the 914mm NB Steel High Pressure (VN082) section of pipeline to accommodate the installation of a new electrical substation…