The new designs directly connect Tonkin Highway northbound and Hale Road via a new road that will be constructed alongside the highway, allowing traffic to merge more efficiently and safely.

When completed, Stage 1 of the Tonkin Highway Grade Separations project will include a half-diamond interchange at Tonkin Highway and Hale Road with north-facing ramps, a diamond interchange at Tonkin Highway and Welshpool Road, and adjacent roads to connect the ramps between Hale Road and Roe Highway.

The scope also includes widening the highway to three lanes and construction of a shared path on the east side of Tonkin Highway, connecting into the existing network.

Urban design elements, including noise walls and underpasses, will also form part of the project's revegetation and landscaping commitment.Ongoing stakeholder consultation, including with the local community, landowners and environmental groups, has ensured early identification and resolution of issues in the area, particularly at the Tonkin Highway and Hale Road intersection.

The Tonkin Highway Corridor, between Roe Highway and Kelvin Road, is a $366 million project jointly funded by the Morrison Government ($293 million) and Western Australian Government ($73 million), with construction to commence next year.

The updated designs can be viewed at: https://www.youtube.com/watch?v=eeD7RTqeRM0

Read full media statement via https://www.mediastatements.wa.gov.au/Pages/McGowan/2021/08/Joint-media-statement-Improved-Tonkin-Highway-Hale-Road-designs-unveiled-following-community-feedback.aspx