The Australian Rail Track Corporation has moved closer to starting construction of the 35 kilometer modernization of track between Narrabri and Turrawan.
Previously, the former federal government had announced $44.7 million for the project.
Once completed, the corridor will accommodate 25 tonne axle load trains traveling at 80 km/h to replace the current aging 20.5 tonne axle load track.
As part of the project, existing steel and timber sleepers will be replaced with 55,000 heavy-duty concrete sleepers.
More than 82,000 tonnes of ballast will serve as the basis for the new rail and sleepers.
Construction is expected to take 15 months.
The environmental factor review for the project was recently approved.
ARTC has made the review of environmental factors, along with a report of submissions, available for public viewing online.
The Submissions Report contains public submissions on the planned upgrade and addresses key issues raised by the Environmental Factors Review that was released to the public in April this year.
ARTC has already completed project development activities including geotechnical investigations, track alignment, studies and constructability assessments on the upgrade of the Narrabri line to Turrawan, which involves the at track level between the existing Hunter Valley network and the planned inland rail line.
The upgrade will be delivered from the Narrabri Coal Junction at Whitehaven Coal, south of Turrawan, to the future interface with Inland Rail at Narrabri North, with construction due to begin later this year.
In a statement, ARTC said it will continue to update the community as work on the upgrade progresses.
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