Leach Highway and Welshpool Road Interchange


Construction has been completed on the new interchange, to ease congestion, improve safety and travel efficiency for all road users.

What’s happening

 Construction complete

The Leach Highway and Welshpool Road Interchange project reached Practical Completion in March 2023. The project was delivered on time and within budget, despite a complex, high-traffic environment.

The project has addressed congestion and improved safety at what was once Perth’s most dangerous and second busiest intersection. The result is shorter, safer, more predictable journeys for local residents, commuters and the freight industry.


traffic flow


travel time



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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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