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Alstonville Bypass

Description of Works –

  • Construction of 6.5km of NSW RTA SH16 including interchanges and local access roads
  • Tie in to existing highway at each end of site.
  • Implementation of major & minor traffic control
  • Preparation of bridge construction pads
  • Erosion control
  • Earthworks including 350,000 m3 cut / fill with blasting
  • Major drainage structures
  • Flexible Pavement Construction with varying sub grade treatments to NSW RTA specification
  • Rigid Heavy Duty Pavements


Special Features

  • Bebo Arches over Water Courses
  • Cuttings through Rock including blasting
  • 15m Fills with some reinforced earth
  • Service roads with complex traffic controls and switching under live conditions
  • Filling and compacting around bridge components
  • Final trim of abutment fill
  • Construction of traffic detours
  • Complex sediment and erosion control measures across a large area of open works
  • Haul Road crossings of existing local and state roads


Quick Facts

  • Location - Alstonville NSW
  • Start Date - June 2009
  • Completion Date - July 2010
  • Value - $20 Million
  • Client - NSW Roads & Traffic Authority
  • Consultant - Professional Engineering Services