Works are underway to bring critical rail infrastructure back online following devastating fires along the Blue Mountains Line between Mount Victoria and Lithgow, with limited passenger and freight train services resuming along the line.

NSW Minister for Regional Transport and Roads, Paul Toole, said the bushfires had left a trail of destruction along a 25km stretch of the state’s main western line, causing extensive damage to signalling and rail infrastructure.

“We recognise how important this rail connection is to passengers travelling to and from the west and to moving freight and we are doing everything possible to resume full services as soon as possible,” Mr Toole said.

“Sydney Trains’ engineers have worked tirelessly to develop temporary systems that will allow us to restore rail connectivity and safely operate a limited number of freight trains from Monday evening and passenger trains from Tuesday 21 January.

“But this will be a long recovery process as we are essentially rebuilding some parts of the operating system from scratch.”

Crews have already removed more than 300 damaged trees from the corridor and are working to relay thousands of kilometres of communication, electrical and signal wiring.

“We understand customers’ concern and frustration, and we appreciate their patience while the repair work continues,” Mr Toole said.

Nationals Duty MLC for Western NSW, Sam Farraway, said the Broken Hill XPLORER service was suspended before Christmas due to the recent bushfires, with coaches replacing the train for the entirety of the journey. Services will return gradually as repairs are made.