Downunder Geotechnical Limited



About us



Serving clients since 2007



Downunder Geotechnical is an employee-owned engineering firm located in Maple, Ontario, specializing in geotechnical and hydrogeological investigations across Ontario. Founded in 2007, the firm is managed by an experienced geotechnical engineer and consists of a group of experienced geotechnical engineers and support staff.


Downunder Geotechnical operates a geotechnical laboratory for determination of index soil and rock properties, including advanced laboratory automated oedometer testing and standard triaxial compression testing.


In support of high quality in situ subsurface characterization, Downunder Geotechnical also operates state-of-the-art piezocone penetration testing (CPTu), seismic CPTu and full displacement pressuremeter (FDPMT) equipment for us on geotechnical projects. To facilitate in situ testing Downunder Geotechnical also operates a Pagani (TC63-150) penetrometer.



Practice Areas



Areas of Expertise



Geotechnical Investigations



Our staff are very experienced with geotechnical design options in order to provide cost effective construction. Typical projects include deep and shallow foundations, commercial/industrial developments, residential developments, high rise buildings, tunnels, temporary shoring, deep excavations, ground improvement, feasibility studies, pavement design, contract reviews, and specification preparations.



Hydrogeological Investigations



Our experienced hydrogeologists and geotechnical engineers provide practical, cost effective recommendations for construction dewatering and hydrogeological assessments. Typical projects include excavation dewatering, long term basement dewatering, water taking reports, discharge plans, PTTW and EASR applications.

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Piezocone Penetration Testing



Piezocone penetration testing (CPTu) is carried out on numerous projects using our Pagani penetrometer or the client's drilling rig. We use Pagani, Vertek and Geotech AB cones to carry out work in Southern Ontario. CPTu up to 48mbgs have been carried out successfully in the right soils. CPTu provides continuous, high quality data to support cost effective geotechnical recommendations.

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Infiltration Stormwater Management



We carry out infiltration stormwater management investigations and design for residential homeowners by employing cost effective hydrogeological methods to obtain information on the subsurface conditions at each site, typically consisting of portable soil sampling equipment and use of a Guelph permeameter. Using this information we can provide a cost effective design to meet municipal requirements.

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geotechnical & hydrogeological projects



Geotechnical and Hydrogeological investigation for a residential development in Lindsay, Ontario. Included SPT sampling, monitoring well installations, single well response testing and Guelph permeameter testing to assess infiltration rates. Provided Geotechnical and Hydrogeological Assessment reports.



Geotechnical investigations for numerous cell towers across Southern Ontario. Included SPT sampling, rock coring and index soil laboratory testing. Geotechnical recommendations provided in a short turnaround time.



Geotechnical Investigation for Trent-Severn Waterwater Dam rehabilitations and reconstructions. Included SPT sampling, rock coring, concrete coring, CPTu, lugeon testing in rock, underwater inspections, advanced geotechnical laboratory testing, geophysics to profile bedrock and environmental sampling. Provided geotechnical recommendations for each three dam locations.



PIEZOCONE PENETRATION TESTING PROJECTS



CPTu to 23mbgs in Toronto Waterfront.



CPTu to 48mbgs in Hamilton, Ontario.



CPTu and FDPMT up to 16mbgs in Keswick, Ontario.



We're here to serve you


Phone number: 905-553-2483
Email:office@downundergeotechnical.com

Maple, Ontario, Canada





Downunder Geotechnical Limited





Corporate Sponsor of the Canadian Geotechnical Society



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