Great Eastern Highway Safety Upgrade

Bilgoman Road to Mann Street



We are undertaking a major safety upgrade of Great Eastern Highway, from Bilgoman Road to Mann Street in Mundaring.

The project is jointly funded with $24 million from the Australian and Western Australian Governments and supported by the Shire of Mundaring.  Construction is being completed in two stages to allow for complex service relocations and additional planning.

In construction - Stage 1: 2 km between Kintore Road and Mann Street

This section is currently being constructed by Downer Group and is expected to be completed by late October.

In all our construction and maintenance projects we seek to achieve balanced and sustainable outcomes for the community and this is documented in our Environmental Policy.

The following sustainability initiatives have been implemented on this project to minimise the amount of construction waste going to landfill:

  • Mulching all vegetation that is cleared and re-using it on site.
  • Crushing and recycling all concrete kerbs and paths for use on other projects.
  • Recycling asphalt for hardstands and driveways.
  • Re-using all soil and pavement material that is excavated as part of the earthworks.

In development - Stage 2: 5.2 km between Bilgoman Road and Kintore Road

Taking into account community and stakeholder feedback, and the outcomes of an independent Road Safety Audit, the Stage 2 design has now been finalised. Construction is subject to additional funding.

In the second half of 2017, Western Power will begin undergrounding and relocation works in this area to upgrade the existing overhead power facilities and street lighting.


Construction impacts


Great Eastern Highway

​Kintore Rd to Mann St

Ongoing to late October

Monday to Saturday

7am to 5pm

​Intermittent single lane closures in both directions

Speed limit reduced to 60 km/h


Project Scope

The planned improvements being delivered as part of this project include:

  • Widening the highway to provide sealed shoulders;
  • Intersections with turning pockets;
  • Improved street lighting;
  • Sealed bus bays;
  • Separate shared use path from Mann Street to Kintore Road eastbound;
  • New road markings, advance warning signs and guide posts;
  • Traffic barriers in the verge and median; and
  • Improved driveway access.



This 7.2 km section of Great Eastern Highway was built in the 1950s and upgraded to a dual carriageway in the 1970s. It now carries about 25,000 vehicles per day and 70 per cent of this traffic is generated from within the Shire of Mundaring.


Further information

For more information, please contact our Customer Information Centre on 138 138 or submit an online form.


Modified: 17 Oct 2017