Member for Bathurst Paul Toole visited the site on Monday to announce $150,000 in further support.

Zig Zag Railway chairman Lee Wiggins said the funds would mainly be used to make repairs to the viaducts, tunnels and culverts around the railway.

"It's basically for a sandstone infrastructure repair and will go towards ensuring the 150 year old viaducts will last many years to come," he said.

He said the previous funding meant the management team were currently going through a design process to seal the car park, update amenities and pedestrian crossing on the site.

"We hope to have something in construction soon," he said.

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Mr Wiggins also said with the 150 year anniversary of Zig Zag Railway coming up in October, there was a plan to have works trains in operation.

"We've got a plan in order to get heavy works trains running by the 150th anniversary, this milestone is a big thing for us," he said.

While there will be works trains, Mr Wiggins said he was unsure of when passenger trains would once again run at the railway station.

"Our philosophy is to get the job done right, once and safely and if that means it's going to take us a bit longer to run our passenger trains then I would prefer to see every one of my workers go home at the end of the day safe and well, than to rush it and do a half job," he said.

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Mr Wiggins said he was hopeful to have steam passenger trains in operation again.

"It's all a little bit up in the air at the moment, we're hopeful but it seems every rock we turn there's an ants nest under it," he said.

Mr Wiggins said the next step was to lodge up development applications to the local government and council.

"We'll submit applications for repairs of the shed and car park, plus a radio repeater site at the top of the tunnel," he said.

Mr Toole said he was privileged to announce the funding for Zig Zag Railway which would be an asset to Lithgow and surrounding communities.

"These funds are really important because it's about looking after those heritage items here at the Zig Zag.

"The site will drive the local economy, create jobs and it's going to be a real boost to Lithgow," he said.

Mr Wiggins thanked Mr Toole for the generous funding.

"The support from State government has been sensational with the 2.3 million last year and the 150,000 this year, I don't think we could ask much more."