Geotechnical & Infrastructure

Ground certainty for
New Zealand's
infrastructure.

We provide the geotechnical engineering and infrastructure consulting that underpins confident design decisions — from early feasibility through to construction support.

NZ
Infrastructure projects delivered across New Zealand
All
NZ regions — north island to south island
RMA
Compliant reporting for council and Environment Court
Qualified geotechnical professionals briefed on every engagement
Core services

Geotechnical engineering and infrastructure consulting

Ground Investigation

Comprehensive subsurface investigation programmes designed and supervised by experienced geotechnical engineers — from desk study through to interpretive report.

  • Investigation scope design and tender
  • Borehole, CPT and trial pit supervision
  • Geophysics interpretation
  • Laboratory testing specification
  • Factual and interpretive reporting

Slope Stability & Earthworks

Stability analysis, cut slope design and earthworks specifications for roading, rail, retaining structures and land development across New Zealand.

  • Limit equilibrium and numerical analysis
  • Retaining wall and berm design advice
  • Earthworks specification and QA
  • Landslide risk assessment
  • Remediation options review

Foundation Design Advice

Geotechnical input to structural foundation design for buildings, bridges, retaining structures and utilities across all soil and rock conditions.

  • Foundation type selection
  • Bearing capacity and settlement assessment
  • Liquefaction mitigation options
  • Pile design parameters
  • Seismic ground response assessment

RMA Consenting Support

Geotechnical and geological expert evidence for Resource Management Act processes — section 92 responses, s42A hearings and Environment Court proceedings.

  • Geotechnical assessment reports for resource consent
  • S92 technical response preparation
  • Expert witness testimony
  • Pre-application authority meetings
  • Peer review of applicant reports
Full project lifecycle

We engage at every project stage

Ground conditions influence design decisions at every phase. Early engagement delivers better outcomes and lower project risk.

Phase 01
Feasibility
  • Desk study and data review
  • Preliminary hazard screening
  • Investigation scoping
  • Risk register input
Phase 02
Detailed Design
  • Ground investigation programme
  • Interpretive reporting
  • Design parameter recommendation
  • RMA report preparation
Phase 03
Construction
  • Earthworks supervision
  • Construction monitoring
  • Variation support
  • QA testing oversight
Phase 04
Post-Construction
  • As-built geotechnical records
  • Settlement monitoring
  • Defect investigation
  • Performance reporting
Where we work

Infrastructure sectors

Our geotechnical team has direct project experience across New Zealand's most demanding infrastructure sectors — including some of the country's largest ground investigation programmes.

Sector Typical scope
Roads & Highways Ground investigation, pavement subgrade assessment, slope stability, retaining structures, RMA reporting
Rail Infrastructure Track formation assessment, tunnel and cutting evaluation, embankment stability, foundation investigations
Water & Wastewater Pipeline route assessment, pump station foundations, reservoir siting, trench stability
Energy Wind farm foundation assessment, grid infrastructure, hydroelectric civil geotechnics, renewable energy siting
Bridges & Structures Pile and abutment foundation design, scour assessment, seismic ground response
Coastal & Marine Port and wharf geotechnics, coastal erosion assessment, seabed investigation

For designers & engineers

We integrate with your design team to deliver geotechnical parameters in the format you need, on the timeline your project demands.

  • Design parameters report
  • Peer review services
  • NZS 3604 and AS/NZS 4600 compliance
  • BIM-ready data deliverables
  • Fast-track investigation programmes

For project owners

We help you understand ground risk early — reducing programme uncertainty and construction cost overruns.

  • Ground risk register
  • Independent peer review
  • Contractor tender support
  • Procurement advice
  • Plain-English risk briefing
Ready when you are

Start your next infrastructure project right

Good ground information leads to better designs, lower risk and fewer surprises on site.