THE North Burnett's iconic network of heritage railway bridges is being highlighted on a new information map showcasing the history and location of each unique bridge.

Gayndah Heritage Railway Trail President Mike Goebel helped spearhead the project along with members of the North Burnett Regional Council.

"The North Burnett Community had the privilege of Welcoming Engineering Australia to present an interpretative panel depicting our iconic railway bridges," Mr Goebel said.

The network of bridges run from Degilbo to Mundubbera and incorporate a dozen bridges.

"The bridges were built as part of a stimulus package from 1905 until 1914," Mr Goebel said.

"The chief engineer at the time was William Pagan and he encouraged his engineers to do individual designs for each bridge."

This gave the rail lines a unique flavour as a combination of six separate designs were ultimately used.

They include steel box girders, lattice truss, fish belly truss , riveted lattices truss, an early example of reinforced concrete and an unreinforced concrete structure.

The interpretative panel includes information on each of the bridges including a map on how to get to them.

"The interpretative panel can be viewed at the Gayndah Railway Station and at locations in Mundubbera, Degilbo and Biggenden and will be accessible at all times," Mr Goebel said.

"The purpose of this project is to raise awareness for our iconic and unique engineering heritage.

"One of the engineering representatives said the iconic railway bridges along with the retained timber trestle bridges represented the best collection of railway bridges in Australia."