Lostock Sub Station


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The contract involved the construction of a new control building and 132kv switch yard compound. The works consisted of providing a full construction package from inception to final handover, and was undertaken within an existing live substation compound.

The schemes involved the following work elements:

  • Safe digging practices to establish depth and positioning of buried services
  • Removal of Himilayan Balsam
  • Reduced dig excavation and cut and fill to formation level
  • Construction of 300mm thick reinforced concrete raft foundation
  • Power floated slab, service trenches and cable pits
  • Fabrication and installation of galvanised support steelwork to service trenches
  • Cavity wall brickwork
  • Pre cast concrete roof slabs
  • New flat roof construction
  • Internal decoration to new and live existing control rooms
  • First and second fix plumbing and joinery to control building
  • Reinforced concrete access roads and car parks
  • Excavation and installation of drainage and oil separators
  • Excavate and lay new 3 and 5 way cable ducts
  • Cast in-situ service trenches and marshalling kiosks with G.R.P trench covers
  • Excavation and construction of reinforced concrete equipment bases, including ducts and holding down bolts