Featured Projects

Seacliff Apartments – Linwood Quarry, South Australia

Project Type: Geotechnical Site Investigation

Client: Private Developer

Overview:

The proposed development comprised a mutli-storey apartment complex featuring a deep basement for car parking, located on a site underlain by deep fill material from historic mining and industrial activities. TERRATECH strategically planned and executed the geotechnical fieldwork program, ensuring compliance with AS1726 standards. TERRATECH supervised subcontractors, conducted thorough soil and rock logging, and performed advanced geotechnical testing to determine the most practical and cost-effective foundation system.

Challenges:

  • Deep and variable fill across the site footprint.

  • Concentrated and high loads from the proposed high-rise development.

Outcome:

The site investigation was completed on time and within budget, and most pragmatic and cost-effective fill treatment and foundation system was adopted for the project.

Paiwalla Wetland, South Australia

Project Type: Geotechnical Site Investigation – Wetland Infrastructure

Client: Wetland Habitat Trust

Overview:

TERRATECH was engaged to undertake a geotechnical investigation for a proposed regulator structure at the Paiwalla Wetland, located near the River Murray. The project involved geotechnical input for foundation design and stability assessment of a hydraulic control structure. Fieldwork included borehole drilling and dynamic cone penetrometer (DCP) testing to assess soil strength parameters and subsurface conditions relevant to the structure’s construction.

Challenges:

  • Saturated and normally consolidated silty clays at shallow depths

  • Limited access for drilling equipment in wetland terrain

  • Structure sensitivity to settlement and erosion due to seasonal water levels

Outcome:

The investigation provided geotechnical parameters for designing a stable foundation system suitable for the regulator. Recommendations included allowable bearing capacities, settlement control strategies, and construction considerations for working in a wetland environment. TERRATECH’s timely input supported informed decision-making for structural design and ecological compatibility.