Our Minister, Legislation, Role and Operations

Responsible Minister

Honourable Rita Saffioti MLA
Minister for Transport; Planning

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 $49 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 more than 18,600 kilometres of road spread over 2.5 million square kilometres.

Last year we engaged directly with more than 4,900 suppliers and made in the order of $1.753 billion in payments. Of our suppliers, 200 were state or local government agencies and 14 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.

Region Population
(000)
Area Covered
(000 km2 )
State Roads
(km)

Goldfields-Esperance

54

941

2,202

Great Southern

61

49

1,609

Kimberley

36

419

2,243

Metropolitan

1,983

5

943

Mid West – Gascoyne

62

421

3,625

Pilbara

62

506

2,748

South West

287

29

1,764

Wheatbelt

76

157

3,491

Total

2,621

2,527

18,625

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