South Auckland · Auckland
Geotechnical engineers for South Auckland
Soft ground, high groundwater and Auckland's biggest growth areas.
South Auckland's growth areas sit largely on young, soft alluvial soils with groundwater close to the surface. Settlement under fill and slabs is the main design issue, and CPTs are usually the most efficient way to model it across a large site.
Ground conditions in South Auckland
Tauranga Group alluvium (Puketoka Formation)Soft to firm clays, silts, sands and peat.
South Auckland Volcanic FieldBasalt and volcanic ash soils around Pukekohe and Bombay.
Auckland Volcanic FieldBasalt flows and tuff around Māngere Mountain and Wiri.
What we look out for
- Soft, compressible soils and settlement
- High groundwater and flooding
- Peat in low-lying areas
- Liquefaction screening on loose sands
Typical projects
- Greenfield subdivisions in Drury, Takanini and Karaka
- Warehouses and industrial slabs
- Infill housing
Every site is different. Geology maps and council overlays are a starting point; a site-specific investigation confirms what is actually there.
Start a project
Building in South Auckland? Send us the site address and we'll tell you what geotechnical input you need.
You get a clear, fixed scope and fee up front. Prefer to talk? Call 09 218 6915 or email info@gibbritchie.co.nz.
