Wan Chai East & North Point Sewerage Trunk Sewers

Wan Chai East & North Point Sewerage Trunk Sewers

  • Wan Chai & North Point, Hong Kong
  • Government of Hong Kong S.A.R (Drainage Dept)
  • Black & Veatch Hong Kong Limited
  • Leighton - Kumagai Joint Venture
  • 2002 - 2006

Project Highlights

The trunk sewers contract involved the construction of 4.4 km of sewers with diameter of 600 mm, 1200 mm, and 1800 mm, with a depth ranging from 4.5 m to 18 m, using slurry- operated TBM's in highly variable ground conditions in two urban areas.

Leighton was the leader of a joint venture responsible for the construction and commissioning of:

  1. 3.1 kilometres of 1,800 millimetre diameter trenchless sewers
  2. 770 metres of 1,200 millimetre diametre trenchless sewers
  3. 58 metres of 600 millimetre diameter trenchless sewers
  4. 182 metres of open cut sewers ranging in diameter from 225 to 1,500 millimetres
  5. 75 metres of watermain, and 27 associated shafts and manholes ranging in depth from six to 20 metres

The Company provided the Medical Lock & Recompression Chamber, Confined Space Supervision & Specialists for changing of the TBM cutting head cutters whilst in situ.

GBFC continued to support and provide confined space Supervision and Specialists throughout the defect liability period to carry out modifications and retro-fits with zero LTI's.