It was widened in 1994 to cater for modern traffic demands by overlaying the original deck with reinforced concrete and cantilevering it to the increased width.

The north end is anchored on to the abutment and the remaining supports have rocker bearings to allow movement to the bridge deck.

It demonstrates how bridge designs evolved to address the structural capabilities or reinforced concrete compared to the traditional materials of masonry, timber and steel.

It is a fine example of a continuous girder reinforced concrete bridge, a type constructed in a limited period between 1934 and World War II.

It includes aesthetic qualities such as shuttering / formwork patterning, curved lines and a light graceful form, which addresses the construction process and structural characteristics unique to reinforced concrete.

[1] Yowaka Bridge near Eden was listed on the New South Wales State Heritage Register on 20 June 2000 having satisfied the following criteria.

[1] The place is important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in New South Wales.

The subtle arches, level springings and haunches along the main beam / girder complement the structural characteristics and potential of reinforced concrete, which allowed a lighter and more graceful bridge design.

[1] The place possesses uncommon, rare or endangered aspects of the cultural or natural history of New South Wales.

[1] This Wikipedia article was originally based on Yowaka Bridge near Eden, entry number 01486 in the New South Wales State Heritage Register published by the State of New South Wales (Department of Planning and Environment) 2018 under CC-BY 4.0 licence, accessed on 2 June 2018.