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Geotechnical EngineeringCertainty from the Ground Up.

Every project begins beneath the surface. Our team provides vital insights through geotechnical and geologic analyses that public and private partners rely on to build safely, soundly, and sustainably. Through our in-depth assessments of soil, rock, and groundwater conditions, we turn underground complexities into workable solutions that deliver for both clients and communities.

 Tiered stone retaining walls beside a two-lane road, with grassy slopes, evergreen trees, and mountains under a cloudy sky

We combine a deep understanding of native geology with functional and responsive engineering to deliver site-specific solutions. Our technical, data-driven approach provides owners and design teams with the geologic support they need to effectively plan, permit, design, and construct successful projects, protecting time, resources, and the surrounding community. Whether providing solutions for existing sites that are failing or have failed, mitigating geological issues, or developing preliminary designs for new builds, we investigate existing conditions, anticipate challenges, and create custom solutions that keep projects moving forward efficiently.

Technician using a handheld device to inspect a utility box in a rural field

We combine a deep understanding of native geology with functional and responsive engineering to deliver site-specific solutions. Our technical, data-driven approach provides owners and design teams with the geologic support they need to effectively plan, permit, design, and construct successful projects, protecting time, resources, and the surrounding community. Whether providing solutions for existing sites that are failing or have failed, mitigating geological issues, or developing preliminary designs for new builds, we investigate existing conditions, anticipate challenges, and create custom solutions that keep projects moving forward efficiently.

Technician using a handheld device to inspect a utility box in a rural field

Our Geotechnical Engineering Services

  • Insights & Analytics

    • Subsurface Investigations, Soil & Rock Characterization, & Geotechnical Laboratory Testing
    • Geologic Hazard, Slope Stability, Settlement, & Groundwater Evaluations
    • Forensic Investigations, Failure Analysis, & Litigation Support

  • Planning & Design

    • Shallow & Deep Foundation Engineering & Ground Improvement Recommendations
    • Slope Stabilization, Retaining Wall, Shoring, & Earth Retention Design
    • Geotechnical Mitigation & Remediation Design for Expansive, Collapsible, Unstable, or Distressed Ground Conditions

  • Compliance & Permitting

    • Geologic Hazard, Seismic & Critical Area Evaluations Supporting Land-Use, & Building Approvals
    • Dam, Embankment, & Infrastructure Geotechnical Assessments Supporting Regulatory Requirements
    • Geotechnical Reports, Technical Documentation, & Agency Coordination

  • Project Delivery

    • Construction Observation, Materials Testing, & Geotechnical Quality Assurance
    • Instrumentation, Performance Monitoring, & Construction-Phase Geotechnical Support
    • Expert Witness Testimony, Claims Evaluation, & Technical Support for Disputes

Geotechnical Engineering in Practice: Learn More About Our Markets

Excavator with a large auger drills into a dirt hillside while a worker stands nearby
Smiling bald man wearing round glasses, a navy blazer, and a gray collared shirt

Khaled Shawish

Branch Manager, Woodinville

“Even after 30 plus years in my profession, I still get excited to solve complex, sometimes daunting issues with simple, sustainable, and cost-effective designs for my clients. Whether it is landslides, or massive wall failures, helping my clients navigate complex permitting laws and seeing the end design implemented is extremely gratifying.”

Featured Geotechnical Engineering Projects

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