Northern Sewer Augmentation – Construction

⁠⁠⁠The Northern Sewer Augmentation (NSA) project will deliver the works required to realise the intermediate stage of the Wagga Wagga Northern Sewer Servicing Strategy and to setup the northern sewer network for easy conversion to the ultimate scheme outlined in the strategy. It will augment trunk sewerage infrastructure to enable the NGA and SAP to be serviced by the main city sewerage network and the Narrung Street STP.

The scope of works includes:

1. construction of two new SPSs including associated systems, earthworks, services, site compounds and access roads;

2. decommissioning of three existing SPSs, including augmentations to the existing network and disposal/recycling of materials;

3. construction of two rising mains and three gravity mains, one of which will be designed for future reversal to operate as a rising main;

4. decommissioning of two rising mains and one gravity main; and

5. various temporary works to enable the augmentation of the network, including temporary rising mains and earthworks.

Wagga Wagga City Council has secured funding through the NSW Government’s Accelerated Infrastructure Fund (AIF) to deliver this critical infrastructure, which underpins housing expansion. A portion of this funding is assigned to the delivery of this project and delivery of the Works in accordance with the grant milestones will be critical for the Contractor to achieve.

Spiire have developed a detailed design and accompanying specifications to enable construction of the Works under the Works Contract, this design forms the core of the scope of works under the Works Contract and is referenced throughout this SoW.