The project aims to create the first part of a new transport corridor for the proposed Perth to Adelaide National Highway. It will involve 80 kilometres of road upgrades between Perth and Northam and will include:
- Reid Highway upgrades between Tonkin Highway and Great Northern Highway
- Roe Highway upgrades between Great Northern Highway and Great Eastern Highway, and
- Implementation of the proposed new Orange Route between Roe Highway / Toodyay Road intersection and Great Eastern Highway at the town of Northam.