Our Geelong office delivers comprehensive geotechnical services tailored to the region's unique subsurface conditions. From site characterization and foundation design to subsurface investigation and construction monitoring, we provide integrated solutions that ensure project success. With consolidated regional experience, we help developers, engineers, and contractors navigate local geology, optimize foundation systems, and meet all compliance requirements. Our work includes everything from grain size analysis for soil classification to slope stability analysis for coastal and hillside developments. We are your trusted partner for safe, efficient, and code-compliant geotechnical engineering in Geelong.
Scope of work in Geelong
Demonstration video
Typical technical challenges in Geelong
Our team brings deep expertise in Geelong's geology, having completed numerous projects across the region—from the Bellarine Peninsula to the Surf Coast. We operate a calibrated laboratory with NATA-accredited testing for soil classification, strength, and permeability. We coordinate closely with local contractors (e.g., for piling and earthworks) and maintain strong relationships with the City of Greater Geelong and the CFA for site compliance. Our retaining wall design and foundation solutions are tailored to local conditions, ensuring cost-effective, safe outcomes. We are your local geotechnical authority.
Our services
Frequently asked questions
What are the typical foundation challenges for homes in Geelong?
Many Geelong homes are built on reactive clay soils derived from weathered basalt. These clays can undergo significant volume change with moisture variation, leading to foundation movement. Additionally, shallow groundwater in low-lying areas can affect footing design. A site-specific geotechnical investigation is essential to determine soil reactivity class and recommend appropriate foundation systems, such as stiffened raft slabs or deep piers.
How does the Newer Volcanics basalt affect excavation and construction?
The Newer Volcanics basalt in Geelong is often highly weathered near the surface, forming a stiff clay that can be excavated with conventional equipment. However, unweathered basalt boulders or layers may require rock breaking or ripping. The variable thickness of the weathered zone means that test pits or boreholes are necessary to confirm conditions. We assess rippability and provide excavation classifications to help contractors plan and budget.
What geotechnical standards must be followed for commercial projects in Victoria?
Commercial projects in Victoria must comply with the National Construction Code (NCC), AS 1726 for site investigations, and AS 1170.4 for seismic design. Additionally, the Building Regulations 2018 (Victoria) require geotechnical reports to be prepared by a registered professional engineer. We ensure all our investigations and reports meet these standards, including NATA-accredited laboratory testing, to gain approval from local building surveyors.
What are the most common geotechnical issues for developments along the Barwon River?
Developments along the Barwon River often encounter soft alluvial clays and silts with low bearing capacity, as well as shallow groundwater that can require dewatering during construction. There is also potential for liquefaction in loose sandy layers during seismic events. We recommend thorough subsurface investigations including cone penetration tests (CPT) and groundwater monitoring to design appropriate foundations, such as piles or ground improvement, and to manage construction risks.