What's happening
Coming soon – Stephenson Avenue Interchange set to open in stages!
Phase 2 of the Stephenson Avenue Extension project will provide a new connection from Scarborough Beach Road to Cedric Street, including a new grade-separated interchange with Mitchell Freeway to replace the existing Cedric Street interchange, and local road links to Ellen Stirling Boulevard.
Set to open in stages, and tying into Phase One of the project delivered by the City of Stirling, the Stephenson Avenue Interchange is anticipated to improve access for people travelling in Perth’s northern suburbs when complete.
The staged opening will help minimise and effectively manage impacts on road users, while allowing construction to continue on local roads, ramps and tie-in works.
Stage One will see Stephenson Avenue extended, connecting Cedric Street to Scarborough Beach Road with a new northbound off-ramp from Mitchell Freeway. The existing Cedric Street northbound off-ramp will permanently close at the same time.
Road users travelling eastbound along Stephenson Avenue from Scarborough Beach Road will also be able to access Mitchell Freeway southbound via the previously opened Stephenson Avenue southbound on-ramp.
Road users travelling northbound on Mitchell Freeway who previously used the Cedric Street northbound off-ramp to access Stirling and Innaloo areas, will now need to exit onto the new Stephenson Avenue northbound off-ramp and will need to position themselves in the left lane earlier.
To help manage traffic flows effectively, several intersections along Stephenson Avenue and on connecting roads including Flax Way which had restricted manoeuvres will be modified to function at full operational capacity.
There will be signage in place to support these changes and motorists are encouraged to follow this signage, allow extra time, exercise caution while travelling through the area.
The new local road connecting Sarich Court to Cedric Street, west of the freeway, will soon be officially known as Catspaw Road and will partially open between Sarich Court and Sunray Drive, connecting to the IKEA car parks in the first stage. The name Catspaw Road was chosen in keeping with the botanical themes already existing in the area such as Sunray and Baumea.
Stage two and Stage three will see further new ramp openings and permanent closures of existing ramps to make the full Stephenson Avenue Interchange operational. There will also be changes to the existing Cedric Street Interchange including temporary lane reductions along Cedric Street.
More information, including timing of the changes and detour maps will be available soon.
Read the October Construction Update for more information on what else is coming up.
traffic flow
connectivity
capacity