Prefabricated in Belgium, transported to Australia and then constructed in Cowra over a 12 month period, the bridge was officially tested and passed fit for use on Thursday, August 25, 1887.

To celebrate this significant event the Lachlan Valley Railway Society will be running a special Cowra Rail Bridge 120th Anniversary luncheon train on Saturday, August 25.

Departing Cowra Railway Station at 12 noon the train will travel to the eastern bank of the Lachlan River overlooking the bridge site.

Passengers will then be invited to leave the train and join local rail enthusiast Lawrance Ryan, who will present an entertaining history of the bridge from construction to the present day.

Back on board passengers will be treated to a three course meal while the train remains stationary, offering panoramic views across the Lachlan River. With lunch complete the train will travel to Koorawatha and return, giving passengers the opportunity to travel extensive local rail network.

Lawrance Ryan is very enthusiastic about the upcoming trip and the opportunity for locals to pay tribute to a structure that has served the community well for the last 120 years.

"The Cowra rail bridge is the most significant single structure on the entire line," Mr Ryan said.

"It was one of 12 lattice girder bridges designed by John Whitton, the New South Wales Railway's most famous Engineer in Chief. Universally known as the father of the New South Wales Railways, it was Whitton who proposed and oversaw the construction of the cross-country line that passes through Cowra."

Mr Ryan said he was delighted Cowra's own Lachlan Valley Railway Society had decided to commemorate the bridge's 120th anniversary with a special train.

"The Cowra Railway bridge is a direct link to our past and a reminder that the NSW Government Railway's truly were our state's greatest ever public work. What a wonderful tribute to its designer and builders that it isstill in regular use today."

Tickets are limited and seats can be reserved by contacting LVR on 6342 5101.

Bookings for the luncheon trip close on Wednesday, August 22.