The rail line at Kankool will be reopened today following the derailment of 19 coal wagons.
The incident occurred early last Sunday morning along a section of track between Ardglen and Willow Tree.
No one was injured when 19 of the train’s 82 wagons derailed.
A spokesperson for the Australian Rail Track Corporation (ARTC) said the track would reopen this afternoon after work to remove the wagons was completed earlier than expected.
“The task of replacing hundreds of concrete rail sleepers, rail track and track ballast is now well underway,” the spokesperson said.
“Additional track supplies and a ballast train are scheduled to arrive later this afternoon to allow the work to remain continuous.”
The derailment meant coal exports from the Gunnedah Basin were disrupted.
Whitehaven Coal said it had stockpiled its coal and was awaiting the line to reopen.