Oakajee Rail Development is a component of the larger Oakajee Port and Rail Development.

The proposed heavy haulage railway and the associated facilities covered in this proposal include 570 kilometres (km) of railway and associated rail infrastructure extending in a north-easterly direction from the North West Coastal Highway (NWCH) approximately 1.5km south of Olsen Road at Oakajee, approximately 24km north of Geraldton, to the Jack Hills mining operations located approximately 500km to the northeast. In addition there will be a 20km link to the existing WestNet rail to Mullewa, known as the Mullewa Spur approximately 90km from the Oakajee Port, and a 10 to 15km link to the Weld Range iron ore deposit known as the Weld Range Spur at approximately 410km from the Oakajee port.