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Our capability stretches well beyond New Zealand.
In fact, RDCL grew out of the need to service our Philippines consulting work, and his since gone from strength-to-strength across New Zealand, and the Pacific.
The Philippines team still forms a critical part of our business as we scale up, with a "One Team" philosophy ensuring that our resources are shared across the Asia pacific region. Whether it's staff filling demand for on-site project work or utilising the different time zones to help deliver faster geotechnical and geophysical solutions to our clients, this team rocks! … See MoreSee Less

Most people will never see the work that happens before a major tunnel is built.

For the Herne Bay Connector Trunk Sewer Upgrade in Auckland, an extension of what would become New Zealand’s largest bored wastewater tunnel, understanding the ground between boreholes was a critical part of the design process.

RDCL was engaged to carry out a rapid MASW (Multi-channel Analysis of Surface Waves) survey along approximately 2 km of the proposed alignment, helping reduce uncertainty in the East Coast Bays Formation between boreholes spaced 200–300 m apart.

Using surface and downhole seismic methods, the team developed a continuous subsurface profile and contributed data used to support 3D ground modelling and seismic strength calculations for the design team.

It’s a strong example of the role geophysics can play in major infrastructure projects, providing practical insight into what’s happening below the ground, before construction begins.

🔗 www.rdcl.co.nz/projects/herne-bay-connector-trunk-sewer-upgrade/

Much of this work is never seen publicly, but it plays an important role in helping infrastructure projects move forward with greater confidence and understanding of the ground conditions beneath.

#Geophysics #MASW #GroundModelling #Infrastructure #WastewaterInfrastructure #Auckland #RDCL … See MoreSee Less

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Adding depth to our geophysics capability in Auckland.

We’re pleased to have Leo Peters on the team as a Senior Geophysicist, bringing a strong mix of academic range (PhD) and practical field experience across non-invasive subsurface investigations.

Leo’s work spans survey design, data acquisition, processing, and interpretation, helping turn geophysical data into clear insight for ground modelling and engineering decisions.

For our clients, this deepens RDCL’s Auckland capability, particularly where understanding the ground early can reduce risk and improve project outcomes.
And for those interested in working in this space – it’s a good example of the kind of capability we’re continuing to build.

Great to have you on board, Leo.

#Geophysics #GroundInvestigation #Auckland #RDCL … See MoreSee Less

When critical infrastructure is being built, confidence in what’s below the surface cannot be understated.

As part of the Te Maunga Wastewater Treatment Plant development in Mount Maunganui, RDCL supported the QA process for a complex secant piled wall, designed with seismic resilience in mind.

On projects like this, the consequences of getting it wrong can be significant, making verification a critical part of construction.

Working alongside the wider project team over an 18-month period, RDCL deployed acoustic and optical televiewers to 3D image 84 QA drillholes within the piled wall. This allowed the team to identify and assess potential engineering defects, while eliminating drilling-induced features from interpretation.

The result was an additional layer of confidence in the installation quality of a critical structure at the heart of the project. An important piece of infrastructure, designed to support the Bay of Plenty for future generations.

At RDCL, we know the role specialist geotechnical and geophysical services can play. We respect our role – helping major infrastructure projects move forward with greater certainty, resilience, and understanding of the conditions below the ground.

🔗 Learn more: www.rdcl.co.nz/projects/te-maunga-wwtp/

#GeotechnicalEngineering #Infrastructure #WastewaterInfrastructure #ConstructionQA #Televiewer #BayOfPlenty #RDCL … See MoreSee Less