Environmental & Heritage Management

Environmental management requirements are applied throughout a project’s lifecycle. The technical information and templates that employees and contractors need to be aware of to complete activities and projects can be found below.

 Environmental Incident Reporting and Investigation

An environmental incident is any event resulting from the activities of Main Roads, Contractors working on our behalf and third parties, which has the potential to cause, or has caused, an adverse effect on the environment, or has resulted in a complaint relating to an environmental issue. All environmental incidents must be identified, reported, investigated and reviewed. Appropriate corrective actions are to be undertaken and processes revised as appropriate to prevent recurrence.

 Environmental and Heritage Consultants

For consultants conducting environmental or heritage surveys on our behalf, including the Panel Contract 107/16 for Environment and Heritage Services, the following ESRI Geodatabase Templates are available for use in accordance with the Main Roads Environmental and Heritage Data Standards​ - PDF

  Dieback Free Materials

Main Roads aims to use Dieback Free Road Building Material in our construction and maintenance activities to mitigate the spread of the pathogen, Phytophthora cinnamomi, into adjoining areas of significant native vegetation i.e. Nature Reserves which are currently dieback free. Where these dieback protectable areas are adjacent to our works the options for obtaining dieback free material are to source crushed rock (igneous or metamorphic) from a hard rock quarry or to treat material such as gravel or sand with Metham Sodium. Using Metham Sodium to fumigate material stockpiles kills any Phytophthora species present with Main Roads having an established process for this treatment.

Companies wishing to supply treated material to Main Roads must follow this process, which requires they first become an Approved Metham Sodium Treatment Company. Companies currently approved are;

 For information on treating materials with Metham Sodium or to become an approved treatment company please contact:

Acknowledgement of country

The Government of Western Australia acknowledges the traditional custodians throughout Western Australia and their continuing connection to the land, waters and community. We pay our respects to all members of the Aboriginal communities and their cultures; and to Elders both past and present.

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