Orrong Road Planning Study
Leach Highway to Great Eastern Highway
Traffic studies have confirmed that Orrong Road currently operates at capacity, with up to 65,000 vehicles per day using the road. As Perth’s population increases, conditions will deteriorate further.
In its current state, Orrong Road is a deficient link in the state’s road network. This road distributes traffic to Mitchell Freeway and Graham Farmer Freeway to the north-west and Leach Highway, Roe Highway and Tonkin Highway to the southeast.
We have considered several options to determine a preferred concept.
Our preferred concept maintains key local road connections along surface roads, with the majority of a full Orrong Road expressway built below ground level. This expressway will deliver a five-kilometre section with no traffic signals.
Importantly, this concept will reduce journey times to approximately five minutes between Leach Highway and Great Eastern Highway. It also has only minor land impacts and improves safety by eliminating conflict between regional and local traffic.