Reid Highway Interchanges Project
Improving transport connections across Cowan is an important part of building a safer, more connected community.
That’s why the Albanese Labor Government is investing $112.5 million towards the $225 million Reid Highway Interchanges Project, helping to deliver safer roads, less congestion and better connections for people across Cowan and Perth's north-east.
These upgrades will improve safety and connectivity for local communities while enhancing freight efficiency by removing two of the remaining five sets of traffic signals on Reid Highway. New entry and exit ramps, together with connecting roundabouts, will maintain access to local roads and residential areas.
Balcatta Road/Reid Highway intersection closure
To support this upgrade, the section of Balcatta Road from Balcatta Road/Reid Highway intersection to Ledgar Road will be removed to make way for the new ramp from Reid Highway westbound onto Mitchell Freeway Southbound.
Once the project is complete, Balcatta Road will only extend west as far as Ledgar Road. The wider project also includes upgrades at the Erindale Road/Balcatta Road signalised intersection to support access to and from the Balcatta industrial area.
Access to the north-west section of the Balcatta industrial area will be via the new Reid Highway/Erindale Road interchange and an improved Balcatta Road and Erindale Road intersection. If you are travelling from:
- Reid Highway - use the new interchange, then continue via the improved intersection at Balcatta Road and Erindale Road.
- Mitchell Freeway - continue to Reid Highway eastbound, then use the new interchange and access the area via the improved intersection at Balcatta Road and Erindale Road.
What stage is the project in?
Main Roads has referred the Reid Highway and Erindale Road Grade Separation project to the Environmental Protection Authority (EPA).
The referral is available for comment on the EPA consultation hub for a seven-day public comment period. If you wish to view the referral documentation and provide comment to the EPA on whether or not the EPA should assess the proposal and, if so, what level of assessment is considered appropriate you can access the referral and provide your comment here.
The EPA will consider the referral documentation and the comments received and will determine whether the project will be assessed under the Environmental Protection Act 1986 (EP Act).
Project Animation
Watch the project animation
Learn More
For more information about the project, visit Main Roads WA. Reid Highway and Erindale Road Grade Separation | Main Roads Western Australia

