Great Eastern Highway Safety Upgrade

Bilgoman Road to Mann Street



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

The project is funded with $25 million from the Australian and Western Australian Governments and supported by the Shire of Mundaring.  We plan to complete construction in two stages to allow for complex service relocations, starting with the 2 km section between Kintore Road and Mann Street, at the eastern end of the highway.

Once Western Power has replaced its overhead power lines with an underground service and relocated some street lighting, we expect to begin stage one in early 2017.  Construction of the remaining 5. 2km from Kintore Road to Bilgoman Road (Stage 2) is subject to additional planning and funding.

Read our August 2016 Project Overview for more information.


Project Scope

Planned improvements 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 details please contact:

General project enquiries

Leanne Pitcher, Main Roads' Community Relations Representative

Tel: 0408 923 249


Contracting or supplier enquiries

Tel: 138 138




Modified: 12 Sep 2016