A NEW flyover at Marshall Rd, which is part of the NorthLink WA project linking Morley and Muchea opened on Monday.
Once complete NorthLink WA will divert 80 per cent of heavy vehicles away from Great Northern Hwy.
Cities, Urban Infrastructure and Population Minister Alan Tudge said the flyover would also mean easier access in the Swan Valley for residents and the 600,000 tourists who visit the area each year.
Transport Minister Rita Saffioti said the flyover at Marshall Rd was a welcome safety initiative as grade separation was safer than a signalised intersection, eliminating the potential for conflict and allowing for smoother traffic flow.
“As part of the overall network of changes, the Marshall Rd flyover will ultimately deliver faster, safer travel times for motorists,” she said.
Cyclists and pedestrians will be diverted onto the flyover via a temporary footpath along the northern side of Marshall Rd, which connects to the existing path on Beechboro Rd North.
It will also separate traffic from the works, allowing construction to progress on Tonkin Hwy near Marshall Rd.
In coming weeks as progress continues, Hepburn Ave traffic will also be redirected beneath new interchange bridges.
NorthLink WA is expected to be completed by late 2019.
Meanwhile, a $5 million limestone noise wall will be built along a 4.5km section of Hepburn Ave from Bellefin Dr to just west of Marangaroo Dr.
Preparatory work to build an access track for construction works is set to start early this month with construction of the wall due to start in January next year.
The limestone wall will be constructed by Great Northern Connect and completed by the middle of the year.
Ms Saffioti said traffic on Hepburn Ave would increase once the NorthLink WA project was complete.
“This wall will reduce noise and significantly improve amenity for residents in this area,’’ she said.
“Residents in properties where the limestone wall will replace their existing back fence will be contacted by GNC prior to works commencing, and I appreciate their patience during construction of the wall.