Philip Island, South East of Melbourne is home to the Famous Philip Island racing circuit and a favourite holiday destination for Victorians. During Holiday peaks the WWTP runs at its capacity so when Western Port Water wanted to upgrade their plant they needed a solution to access their Surface aeration systems, which at the time were held in place by tie ropes. This made routine inspection and maintenance a bit of a problem, no one likes to go swimming in an aeration pond?
Designs were drawn up for a conventional NEW bridge system requiring lengthy shut downs which potentially could impact on the holiday seasons. Xylem were initially contacted to supply articulated bridges for the three Surface Aerators.
Articulated Bridge design reduce the amount of structural impact on the aeration pond, where a ballast block is attached to the side of the tank, and thus reduces the impact and necessity to shut down the whole plant. Unfortunately Xylem due to other commitments were unable to supply the bridges, and referred AntWorks Engineering to the Construction Team.
The following design was proposed and accepted by Simpson Constructions for the Articulated bridges to connect to 2 x Xylem Surface Aerators and 1 x By-Jas Aerator.