​​​​​​​​​​​​​​​​​​​Smart Freeway - Kwinana Northbound

We are delivering Perth’s first Smart Freeway and creating an additional lane from Canning Highway to Narrows Bridge. Smart technology will be used to open and close traffic lanes in the event of an incident and adjust speed limits to get more traffic through during busy periods.

A Smart Freeway is the best solution for this constrained area where the railway and the Swan River prevent traditional widening. It will provide motorists with greater journey reliability, saving time, reducing costs and enhancing safety.

Smart Freeways are used successfully around the world to manage congestion, improve safety and get the most out of existing infrastructure.


 Video: Smart Freeway Kwinana Northbound project overview


  • All Lane Running: creation of an additional lane by transitioning the emergency stopping lane for use by general traffic between Canning Highway and Narrows Bridge.
  • Lane Use Management System: safely enabling all lane running by implementing a smart system to close and reopen traffic lanes, adjust speed limits and provide emergency access during incidents, similar to the system used in the Northbridge Tunnel. 
  • Variable speed limits: are used to improve traffic flow by adjusting the speed limits based on traffic volumes and conditions. 
  • Emergency stopping bays: will be provided at regular intervals for vehicles to use in case of breakdown or incident.
  • Automatic Incident Detection systems, installed between Canning Highway and the Narrows Bridge, alert our operators to any incidents or breakdowns, while CCTV cameras allow further investigation.
  • Coordinated Ramp Signals: will be installed at on-ramps to help balance the flow of traffic onto the freeway and improve merging at Farrington Road, South Street, Leach Highway and Cranford Avenue.
  • Comprehensive CCTV coverage: will be linked to our central Road Network Operations Centre.
  • Driver information: will be better facilitated through electronic message signs on the freeway informing motorists of traffic conditions ahead in real-time.

This project is being delivered by SmartWays Alliance, which includes Main Roads, BMD Constructions, Ventia, and Arup.

Project update

Major project milestone

In early May we completed all freeway asphalt works, signaling a major milestone in the project. The construction activities left to complete include electrical installation testing and commissioning. Once these are finished, the technology required for the Smart Freeway to operate will undergo a rigorous testing process ahead of its deployment.

Principal Shared Path (PSP)

  • Canning Highway to Narrows Bridge closed 6 to 9  July from 7pm to 5am
  • Cale Street footbridge closed until asphalt works can be completed
  • Resurfacing and line-marking still to be completed in some areas, including the section near Cale Street footbridge
  • Occasional traffic management required between Farrington Road and Narrows Bridge.

Thank you for your patience.

Community Engagement Survey

How are we doing? Please take a couple of minutes to complete our Community En​gagement Survey . The information collected will be used to inform how the Smart Freeway - Kwinana Northbound project team communicates with road and shared path users, businesses and community members.


Kwinana Freeway northbound entry from Leach Highway eastbound

  • Closed Thursday 9 July 8pm to 5am

Manning Road eastbound from Ley Street to Davilak Crescent

  • Closed from 7am Saturday 11 July to 5am Sunday 12 July
  • Work may extend to Sunday evening if required
  • Follow signed detours

Manning Road westbound from Welwyn Avenue to Ley Street

  • Closed 5am Sunday 12 July to 5am Monday 13 July
  • Work may be rescheduled to Monday 13 July 7pm to 5am if the eastbound works take longer than anticipated
  • Follow signed detours

Kwinana Freeway northbound from Farrington Road to the Narrows Bridge, including ramps

  • Lane closures and speed reductions as required
  • Further freeway closures will be scheduled for rigorous testing and commissioning

Manning Road southbound on-ramp works

  • Motorists may also notice roadworks on Manning Road between Ley Street and Kwinana Freeway. 
  • This includes a lane closed in each direction between Ley Street and the freeway, and intersection closures. Visit Manning Road southbound on-ramp project page for more information

Dates are subject to change. Please refer to on-road signage for the latest information. 

Visit our Travel Ma​p to find all roadwork, event and incident information you need to plan your trip.


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  • Increase road capacity
  • Adjust speed limits based on traffic demands in congested periods
  • Move more vehicles than ever before as well as reducing stop-start conditions by managing the flow of traffic
  • Improved journey times on Kwinana Freeway as far south as Roe Highway


Construction: By mid-2020

Commissioning and operation: From mid to late-2020

Find out more​​


Project Updates

Open Project Update PDF​​ - December 2019

Open Project Update PDF​ - October 2019

Open Project Update PDF - December 2018

Open Project Update PDF - December 2017

Open Project Update PDF - August 2017

Media Statements

Perth's first Smart Freeway project on track - 19 June 2019

Construction starts on Perth's first Smart Freeway  - 13 January 2019

Contract awarded for Perth's first Smart Freeway (State)  - 28 September 2018

Last Updated: 06 July 2020