Lara Sewer Pump Station

Lara, Vic

Project Duration

February to June 2016

Client

Department of Justice / Barwon Water

Project Value

$ 2.1m

The Barwon Prison Precinct originally treated all sewage and wastewater on-site via the Barwon Prison Wastewater Treatment Plant (WWTP). Following the proposal of Kareenga – a new 300 bed prison facility – it was identified that the existing WWTP did not have sufficient capacity to treat further wastewater and sewage. The solution involved the construction of an off-site wastewater treatment facility located adjacent to the existing treatment plant. The works required the design and construction of a new Sewage Pump Station (SPS) and Sewage Rising Main (SRM) of length 10km, which JAYDO was contracted to deliver.

The Lara Sewer Pump Station project included:

Design and construction of Aquatec precast 3.2m diameter wet well to the depth of 7m (with
internal epoxy coating)
Installation of 2x 32kW submersible pump sets
Installation of 4x Aquatec 240kL emergency storage vessels
Construction of 7x DN1500 maintenance holes ranging in depths from 2m to 5.3m
Construction of valve and flowmeter pits, in addition to installation of mag flowmeter and associated valves
Design, supply and installation of chemical dosing facility
Ventilation fan, ductwork and vents installation
All associated electrical and mechanical works

key challenges

Large scale excavations was required to install the four storage vessels, which required extensive planning of crane lifts and detailed procedures in order to correctly install the 240kl vessels
A tight project timeline, with delivery of the project fast tracked to meet the opening of the new Kareenga Prison

project outcomes

All works were completed and fully operational prior to the end of June 2016, in time for the openings of the Kareenga Prison facility in July 2016
Both the SRM and SPS components of the Barwon Prison Precinct Wastewater Infrastructure Upgrade were completed on budget and to schedule, to the satisfaction of the client