Screw Piling
Shepparton & the Valley.

The ground here

Deep alluvial ground, bearing from depth.

The Goulburn Valley is floodplain. The ground through Shepparton, Mooroopna and the surrounding irrigation district is deep alluvial material laid down by the Goulburn and Broken rivers: silty clays and loams running well down, with a water table that sits shallow across much of the district and rises through wet years. There is very little rock near the surface, which means bearing comes from depth rather than from refusal on something hard.

That is a straightforward brief for screw piling and an awkward one for methods that need a stable open hole. The pile is rotated down until it reaches the design torque the engineer has specified, with the torque recorded on every pile, so the load is carried on material that has been measured rather than assumed. No excavation pit standing open in a shallow water table, no concrete curing in wet ground, and almost no spoil to move.

The Valley's building mix leans heavily on agriculture and food processing alongside its residential growth, which means shed pads, storage and processing footings and civil work sit next to houses and extensions on the same job list. All of it gets the same AS2159 engineered install and the same documentation at handover.