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Geotechnical Services from Expert Consultants

Make sure that your site can accommodate your construction project with our Geotechnical Services

Knowledgeable and efficient geotechnical engineering is essential for safe, secure, and environmentally responsible construction. Developers and landowners may require the assistance of our engineers, geologists, and hydrologists in planning and developing properties for the private and public sector.

The G3 team expertly navigates California’s varied terrain from site assessments to fault hazard evaluation and stabilization of ground & slope.

We review your project, perform a site investigation, and determine how the engineering and geological properties of your location will affect the planning of your project.

Our experts can provide quality assurance and quality control consulting services throughout design and construction activities.


Due Diligence and Feasibility

Our geotechnical engineering consultants assess the rock and soil within the property before foundations for structures are laid and discover any disturbances that are present or may arise in the future.

This type of investigations helps our team anticipate the changes made to the soil property and mitigate any issues before undertaking a project.

With these geotech due diligence studies, we are able to make recommendations and plan any future steps to take for the safe and efficient development of a specific project or a land development.

Design Studies

We examine project designs for a specific plot of land and run the needed analysis and tests that will determine the end result of such a project from a geotechnical engineering and testing standpoint. Through our G3 method, we are able to take a closer look at any given plan and a correct course on what needs to be done for it to succeed. This approach is an important step to take, not only from a geotech consultant standpoint, but also for construction compliance efforts and from a land study assessment perspective.

Risk & Mitigation Assessment

As we perform studies on a project’s feasibility through our perspective as geotechnical consultants, we are able to anticipate and prepare for any natural event that would otherwise harm or impede the realization of such a project. Our oversight covers the anticipation and necessary steps that prevent harm from soil hazard otherwise unnoticed without proper due diligence from a geotechnical engineering company.


Geotechnical assessments

A Geotechnical Assessment is the first step in land project and construction endeavors. It consists of evaluating and classifying the soil below the surface so that accurate calculations on foundations and other geological developments are performed.

Our G3 Soilworks experts provide a much clearer picture of what soil you'll be working with and provide accurate predictions on its behavior during and after the project's development and conclusion.

Soil Mechanics

Our geotech expert team covers soil mechanics, which is the assessment of soil performance through observing soil composition, strength, consolidation and other characteristics dictated by our measuring methods.


When undertaking a construction or development project, foundations are a primary concern. Depending on the soil characteristics and the type of structure that would support a specific weight, steps in foundation analysis must be taken with proficient geotech engineering knowledge and testing expertise.

Among these steps, the type and total weight of the load to be supported must be calculated to then perform the necessary subsurface studies and tests that will provide data on soil features. This methodology of field testing and desk work allows an ideal design for foundation analysis, provided for both the project's safe undertaking and for on-budget realization.

Construction Services

Project Oversight

Our team of geotechnical consultants can take over the quality control end of the design and construction efforts of your projects. With the G3 team’s expertise and experience, they are able to see through all aspects of design and development efficiently and safely.

Solution Management

We provide geotechnical solutions that can be applied effectively no matter the situation on the ground. With our expertise in geotech solutions, we have become known for providing a better approach than most geotechnical engineering firms.

As geotechnical engineering professionals, we focus on the scientific study of data without jumping any steps in finding the right solutions to every situation. The projects we’ve worked on are a testament to our method, and as such we feel confident our geotechnical engineering methodology is superior.

Laboratory Testing

We provide soil and rock testing both on the field and in laboratory testing. Using different samples to determine the soil's properties and using a variety of methods for their extraction and delivery, we are capable of running a full spectrum of tests that will stay in compliance with regulatory requirements.

3rd Party Review

Our team is experienced in providing an impartial review on any 3rd party study or geotechnical assessment through our perspective and ethical guidance. With our methodology, we’ll be able to provide trustworthy insight into any development or study you have come across.

Geotechnical Engineering

  • Preliminary exploration / geotechnical and engineering geology assessment
  • Grading plan review and development
  • EIR and SP planning input
  • Seismicity and seismic ground response estimation
  • Foundation design – deep, shallow, hillside, tunnel, basement / subterranean
  • Foundation repair and re-leveling
  • Pools
  • Decking and flatwork
  • Expansive soils – design and mitigation (includes creep, lateral extension, differential expansion, hill-top effects, mixed foundations, vegetation effects)
  • Streets, roadways, drives, pavement design and evaluation
  • Utilities – trenchwork design and construction support, wet, dry, or specialized
  • Corrosion of buried materials
  • Ground stabilization and repair
  • Hillside stabilization and slope restoration
  • Observation and testing – construction documentation
  • Soil laboratory testing
  • Concrete, special duty concrete
  • Water / moisture / vapor control
  • MSE structure design and construction
  • Retaining walls
  • Pipelines
  • Hazard assessment, mitigation, and risk management
  • Experience: heavy hillside, landslide terrain, active faults, alluvial / valley, soft ground, shallow groundwater – residential, commercial, entertainment, roadway / utility, water projects.