About Us

Enabling Legislation

The Main Roads Act 1930, as amended, establishes the Commissioner of Main Roads as a corporate body and sets out the powers and duties of the office.

Our Role

Our role is to plan, build, maintain and operate Western Australia’s State Road Network valued at more than $54 billion. We work closely with our portfolio partners, the Department of Transport and the Public Transport Authority, as well as local government, to support the needs of all road users across the state by providing an integrated world-class road transport network.

Extent of Operations

We are one of the most geographically dispersed road agencies in the world, responsible for nearly 18,700 kilometres of road spread over 2.5 million square kilometres. Last year we engaged directly with more than 6,124 suppliers and made in the order of $2.217 billion in payments. Of our suppliers, 171 were state or local government agencies and 7 were research bodies or universities. The remainder are classified as contractors, consultants or suppliers and are predominately from the Western Australian economy. Our indirect supply chain is again more extensive with our construction projects engaging with multiple sub-contractors and suppliers.

Main Roads operates from eight regional locations throughout the state.