Mandalay SPS720 Upgrades

Beveridge, Vic

Project Duration

January to June 2026

Client

Yarra Valley Water

Project Value

$ 2.47m

Yarra Valley Water engaged Jaydo to upgrade the Mandalay Sewage Pump Station (SPS720) at Beveridge, lifting station capacity to meet sewer network demand driven by rapid population growth in Melbourne’s northern growth corridor.

A temporary sewer bypass kept the network in service while the station was rebuilt, and the upgraded station was commissioned ahead of schedule to meet demand and Yarra Valley Water’s EPA compliance obligations.

The scope of works included:

Wet well modifications – scabbling, shotcrete benching, guide rails, pedestals, riser pipework and new pumps
New wet well lid, vent stack and coring
Replacement of pipework within the pump station building
Electrical upgrade – new MCC cabinet, switchboard and 550kVA standby generator
Rising sewer main flushing and cut-in, and a temporary bypass with electric pumps and permanent level sensors

key challenges

Temporary sewer bypass on a live station, with risk of high sewer flows and spills during construction
Multiple network shutdowns cancelled and replanned around extreme fire danger days
Site power supply below the level assumed in design
A year-plus delay outside Jaydo’s control as demand outgrew station capacity, then a request to mobilise ahead of programme
Multiple design changes during delivery
Confined space entry and working at heights within a live wet well, close to housing

key innovations

Self-delivery of high-risk works – in-house crane and workbox for working at heights and wet well entry, and confined space works
In-house electrical redesign and staged pump operation to suit the confirmed site power supply
In-house redesign of the sewer decommissioning and end connection, with conduits installed for a future power upgrade
Electric bypass pumps and mains-powered site offices, keeping noise down for neighbours
Permanent sewer level sensors for early spill notification