Long O Donnell Secure Pipeline Diversion Work for Wales and West Utilities

Wales and West Utilities have awarded Long O Donnell (LOD) the Detailed Design for a proposed diversion of a High-Pressure gas pipeline at Mamhilad, Pontypool under the Mechanical Design Services Framework which will include:

  • Full mechanical design and civil design for the New connection and associated connection pipework to the New Regulator. Also, the New Low-Pressure connection, pipework and decommissioning and removal existing Pressure Regulating Station.
  • Detailed design construction drawings for all disciplines (i.e. mechanical, civil/structural, electrical, instrumentation, corrosion protection etc) including:
    • Design of any temporary works required.
    • Design risk assessments.
    • LOD will complete a detailed routeing study to refine the proposed pipeline route and will include full ecological, environmental and archaeological surveillance of sites close to the proposed route.
    • A full stress analysis report together with the Design appraisal will be completed.
  • Full details and costings of all materials, fittings, pipework and equipment with size, grade and specification or code, to demonstrate compatibility with the existing network.
  • A detailed cost estimate will be undertaken by LOD for all elements of work including the engagement of specialist consultants to complete the works.
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Detailed Design for a proposed diversion of a High-Pressure gas pipeline at Mamhilad, Pontypool