Butler Rail Bulk Earthworks


Western Australian Government, Public Transport Authority

RJV Scope

Earthworks to prepare the railway alignment, extending from Hester Avenue to join with the existing earthworks south of Landbeach Boulevard.

Project Location

Rail Extension, Clarkson to Butler Stations

Project details

The Butler Rail Extension Project is a $240 million project to extend the Joondalup rail line to Butler. This project is to extend the Joondalup Line to Butler and involves extending the existing rail line approximately 7.5km north of the existing Clarkson Station, to service Perth’s rapidly growing north-west suburbs. With more than 2,000 passengers expected to board at Butler Station every day, the project will also help ease pressure on the Mitchell Freeway and major road corridors.

Passenger services on the new line started in 2015.

Features of the overall project include:

  • A park ’n’ ride station with approximately 930 car bays
  • 11 new buses to provide feeder services into Butler and Clarkson stations
  • Opportunity to positively influence land use around the station as a Transit Oriented Development
  • Four additional railcars have been acquired to accommodate the extra passengers

A significant factor affecting the project was the complexity of operations due to restricted access and limited work area, and a project requirement to complete the works as close as possible to the allocated timeframe. This was further completed by PTA adding a series of contract amendments to the project that resulted in the required work tripling in scale. Included in the additions was a requirement for: 

  • Under-track boring at the Nowergup Depot – during liv railcar operations
  • Butler Transit Station Forward works
  • Earthworks to Nowergup Depot yard – 200,000m³
  • Additional up main re-alignment (additional rail track) – bulk earthworks 167,000m³
  • Nowergup access road – bulk earthworks 30,000m³
  • Supply and installation of HV electrical pit and pipe at Nowerguy Depot
  • Supply and installation of HV cable works and services relocation at Nowergup Depot
  • Supply and install tech span arch underpass and reinforced earth walls to Nowergup access road

The magnitude of the civil work required achieving the original contract within deadline, plus the additional project works, with changing design requirements within the original deadline was immense.

RJV was the winner of the Civil Contractors Federation ‘2012 Earth Awards’ (WA).