In contrast to the straightforward expression of structure in the cantilevered trusses and walkway, the piers are capped by simple architectural forms which echo the details of Egyptian pylons and Classical Triumphal Arches.

[2] In keeping with many such early reinforced concrete bridges and engineering works (as opposed to buildings) the aqueduct could have been executed at a much larger scale and still retained its visual qualities.

On 1 June 1910, surveyor Charles Campbell Breen had already begun work on the survey alignment for a sewer to serve Geelong.

The Royal Commission on Sanitation in Britain had recently studied the issue of fecal matter discharge into streams.

Mr. R. T. Mackay, Chief Engineer to the Geelong Water Works and Sewerage Trust, was aware that the flow of the Barwon River did not permit the necessary standards except for limited periods.

The final recommendation by Mr Mackay was that an ocean outfall was the best way of sewage disposal while the simplicity of the scheme made for economy.

[2] Designed in 1912 by Mr E. G. Stone, and constructed from 1913-1915 at a tender cost of £18,450, the Barwon Sewer Aqueduct was described in January 1916 in the Commonwealth Engineer.

On the recommendation of Mr R. T. Mackay, Chief Engineer to the Water Works and Sewerage Trust, it was decided to erect an aqueduct.

It was stated that one of the advantages was that the movement caused by temperature variations would not impact on the appearance or function of the sewer, which would have a grade of 1 in 2,500, when compared to steel construction.

The pre-cast concrete pipes (ovoid to achieve maximum hydraulic efficiency), in 8 foot lengths, were to be built into the structure.

[2] A report completed in 1995 for Barwon Water concluded that, due to its condition, there was no factor of safety and the structure could collapse at any time.