The line ran from Moe to the former gold-mining town and popular tourist destination of Walhalla.
After the closure of the Walhalla mines, substantial timber traffic was carried from sawmills in the Erica area until the late 1940s.
The Thomson River Railway Bridge is listed on the Register of the National Estate.
The centre span had been part of a road bridge over the Murray River at Tocumwal (NSW).
By this time the roadbed was a totally overgrown jungle of blackberries and heavy scrub, with numerous sections of the trackbed having collapsed and all being derelict except one of the bridges.