Locals are concerned that the closure of some key WA train lines will force streams of trucks onto their roads.

The Shire of Perenjori is worried the increased truck movements will put drivers and roads at risk.

Their fears are the result of closing WA's tier three grain freight network, which locals say do not make sense.

The rail network has been placed into care and maintenance as the two firms in charge - Brookfield Rail and grain handler CBH – continue to argue over who should pay to repair the lines.

Speaking to ABC reporters this week, Perenjori Shire president Chris King said having no trains from Perenjori to Maya line will force transport fees up for farmers, and means roads will become degraded faster.

He also fears for local children, as more than 900 truck movements may pass the Perenjori primary school each year.

“That's a concern with potentially 50 to 60,000 tonne going up that road, it's quite a lot of truck movements going past the local school,” he said.

“For a perfectly useable railway line to be suddenly declared useable, it defies description, it's a crazy choice and one I hope that Brookfield and CBH can sort out and if not, at least the Government could step in and maintain what is their asset after all.”