Leach Highway & Welshpool Intersection Upgrade

Overview

Road
Project type
$136million
Total budget
Under Construction
Project phase
Main Roads WA
Lead agency
600
Jobs supported
Mid 2021
Start date

Late 2022
End date

This project involves upgrading the intersection of Leach Highway and Welshpool Road, currently one of Perth’s most congested intersections.

Constructions works will include a grade-separated interchange at the intersection with a new road bridge installed at Leach Highway over the Armadale/Thornlie rail line.

There will also be a shared path for cyclists and pedestrians along Leach Highway from Sevenoaks Street to Orrong Road, including over the Armadale rail line.

Benefits

Improved traffic flow
Significantly improve travel times and safety
Create local jobs and contract opportunities

Project map

This map shows an aerial view of the project location.

Project work area

Show disruptions

Detour options

Ewing Street North Traffic Changes
Vehicles will be unable to enter Ewing Street North from Railway Parade for 6 months from Monday 2 August 2021.

Traffic at the southern end of Ewing Street North, near Railway Parade, will be reduced to one outgoing lane only, to enable:
- Roadworks to change the alignment of Ewing Street North near Railway Parade
- Construction of walls for the new bridge over the railway line.
Vehicles will be able to enter and exit Ewing Street North from Welshpool Road and exit onto Railway Parade as usual.

We recognise these changes and construction activities can be disruptive, and we thank you for your patience while these works are underway.

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Leach Highway and Orrong Road off-ramp closure

The Orrong Road off-ramp from Leach Highway northbound will be closed 4-6 August from 7pm-5am. Detours will be in place (see detour map).

This closure will allow for the installation of temporary barriers, temporary road line marking, median clearing and temporary pavement construction along Leach Highway.

Detailed traffic planning is underway to optimise traffic flows while construction activities are underway. Please drive carefully and observe the signage on the road.

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