Allawah Rail Overbridge Replacement

NSW
Sydney Trains
2016
40m

Long Steel Bridge Girders Installed

750mm

Water Main Relocated

11kV

Ausgrid Feeder Relocated

240V

cables relocated

Abergeldie collaborated with Sydney Trains to complete the Allawah Rail Overbridge Replacement project, following thorough engagement with community groups. The project was essential to alleviate traffic congestion and enhance public safety. Throughout the project, the team adhered to the safe working requirements of Sydney Trains, with a dedicated Rail Protection Officer overseeing the construction works.

Scope of Works

The works included:

  • The demolition of the existing bridge and construction of a new bridge and approach road, including earthworks, retaining walls, pavement, drainage, and footpaths.
  • Fabrication and installation of 40m steel bridge girders.
  • Design and installation of a work platform within the live rail corridor, to allow for the installation of abutments for the single-span bridge, including bored piling and FRP concrete works.
  • In-situ concrete bridge deck pours.
  • Relocation of third-party utility service lines, including 750mm water main, 150mm domestic water main, 11kV Ausgrid feeder and 240V cables, as well as street lighting and road signage.
  • Relocation of rail assets and installation of four new OHW structures.
Allawah Rail Overbridge Replacement

Efficient project delivery

Some preparatory works outside the danger zone were carried out mid-week adjacent to live rail traffic, while the majority of works were reserved for weekends during scheduled weekend rail possessions. During these possessions, works were meticulously scheduled on an hourly basis and closely supervised to ensure on-time hand-back. Works were completed within budget and ahead of schedule.


Improved traffic flow and safety 

The new bridge has significantly alleviated traffic congestion in the vicinity and has enhanced safety for both pedestrians and motorists.