Proven product for supersize sewer storage

The continued expansion of the Traralgon housing development in Victoria has seen Gippsland Pipelines of Warragul engaged by Gippsland Water to construct a 2400mm diameter sewer pump station and two 90,000L emergency storage tanks, the largest in Gippsland to date.

“The completion of this project allows for the development of two new estates comprising approximately 400 new homes,” said Mark Steggall, Director of Gippsland Pipelines. “The new pump station cuts off the majority of sewer flow upstream where the sewer would have been over capacity. Once the development of the two new estates is complete there will still be capacity left in the existing sewer line. This is an example of development and water authorities working hand in hand to ensure the infrastructure is built ahead of the demand required by the new housing.”

“A lot of what we do remains out of sight and therefore, out of mind,” said Paul Clark of Gippsland Water, “but the reality is, whenever new residential or commercial building takes place, we are there to make sure the supporting infrastructure is done right. Water and sewerage services are among the most critical of amenities for future growth and we take great pride in being able to contribute to the growth of our local communities.”

The sewer pump station is 7.4m deep, including a precast base section, and the emergency storage tanks are 10.5m long and 12.6m long respectively. Both storage tanks were constructed of Rocla® 2550 X 2.1 rubber ring pipes with ends cast in and 1050 sewer access starter shafts so that extra shafts could be added to bring access points to the finished surface levels as required.

“Having ends and sewer access starter shafts cast in the Rocla factory at Campbellfield, meant easier and quicker construction and less time on site for the installation,” said Robert Burns, Rocla Sales Representative. “The site had limited access, so a 200 tonne crane was used to install the pump station and storage tanks meaning timing was critical, especially with the notorious wet Gippsland weather.”

Mark said the project had faced its fair share of challenges. “We had very restricted access on site, so we had to split the deliveries and carefully procure the right segments in the correct order. Robert from Rocla was very helpful and understanding of our needs on site. He did everything he could to help and was very much part of the project team,” he said.