SITE works for the Reid Highway interchanges project, which includes two new bridges over the highway, is expected to begin in the first half of 2024.

One new bridge on Reid Highway will be over the Altone Road intersection, with connectivity between Altone Road and Reid Highway to be maintained via entry and exit ramps and roundabouts.

The second new bridge over Reid Highway will connect Drumpellier Drive with Daviot Road and have entry and exit ramps onto Reid Highway.

The $225 million project includes modifications to Reid Highway from Altone Road to Arthur Street to support the new interchanges.

There will also be modifications made to the existing Tattler Way roundabout to provide southbound left in-left out access to the residential area.

Main Roads WA said the earthworks happening on the left-hand side of Reid Highway and Drumpellier Drive, between the highway and the noise wall of the estate that can be accessed by Luminous Boulevard, were for a private residential development being undertaken by Mirvac and unrelated to their project.

A principal shared path (PSP) bridge for cyclists and pedestrians passing over the Altone Road on ramp and new PSP underpasses beneath the Altone Road off ramp and Daviot Road will be built as part of the project.

Main Roads WA said the changes would provide an uninterrupted path network from West Swan Road to Malaga Drive.

Additional noise and screening walls in various locations along Reid Highway are also included in the project which is expected to be finished in early 2026.

A Main Roads WA spokeswoman said due to the scale and complexity of the project, there was likely to be some disruption to traffic on Reid Highway during construction.

“This could include intermittent speed reductions, lane closures and detours,’’ she said.

“The impacts to the existing road network will be carefully considered by our contractor in its construction management planning and communicated to the community and road users in advance of any works taking place.”