Links Creek Aqueduct Renewal

Links Creek Aqueduct spans over Links Creek, which only flows intermittently. The aqueduct forms part of the Ryde/Killara water main, a nominal 750mm internal diameter (approx. 818mm outside diameter) mild steel cement-lined pipe, which was constructed in 1930. The aqueduct is approximately 30m long with the underside of the pipe about 2.4m above the creek.

The aqueduct consists of 8 spans supported by concrete saddles. Corrosion was quite advanced on the pipe and steel structure with frequent areas of flaking paint. The primary intent of the rehabilitation work was to replace 5 pipe sections during a three-day shutdown and refurbish the rest of the structure to minimise future operational costs, ensuring long-term structural integrity and minimising the chance of any environmental damage. Freyssinet Australia was engaged as Main Contractor to undertake the remediation of the aqueduct.