I still believe Flinders is the One.

https://www.jtsi.wa.gov.au/docs/def...i-annual-report-2017-18.pdf?sfvrsn=ee0b721c_4

Page 12.

Balla Balla Infrastructure Project
The Railway (BBI Rail Aus Pty Ltd) Agreement Act 2017 (State Agreement) for the rail component of the Balla Balla Infrastructure Project, was passed through Parliament on 5 December 2017.
The State Agreement provides for a 160 kilometre heavy haulage railway which is proposed to connect Flinders Mines Ltd’s Pilbara Iron Ore Project to a proposed transhipment and stockyard facility at the port of Balla Balla, situated midway between Karratha and Port Hedland.
Total capital costs for the whole project is estimated at $5.6 billion ($1.4 billion for the port, $1.8 billion for above and below rail, and
$2.4 billion for the mine). There will be an estimated 3,300 construction jobs and 900 positions once the project is operational. A financial investment decision is expected first half of 2019.