Geotechnical Engineering

Our geotechnical staff will work with you throughout the design process, from site selection research to construction.

We provide:

  • Geotechnical investigations
  • Deep foundation design for bridges and other structures
  • Utility alignment studies
  • Slope stability analyses
  • Seismic evaluations and upgrades
  • Geotechnical instrumentation
  • Geotechnical construction observation
  • Peer reviews

Our projects involve:

  • Essential facilities, such as hospitals and fire stations
  • Commercial, residential, educational, and industrial developments
  • Utility infrastructure, including wastewater facilities, pipelines, and outfalls
  • Transportation, such as commuter rail, roadway and bridge projects, and park and ride facilities

For more information, download our Geotechnical Services brochure.

Northfork Landslide: Before Northfork Landslide: After
Construction Observation and Testing

Our construction observation and testing services include:

  • Observation and testing of compacted fills and (site) earthworks
  • Observation and logging of drilled shaft excavations and construction
  • Coordination and implementation of full-scale shaft load testing
  • Crosshole Sonic Logging (CSL) testing
  • Observation of pile foundation systems
  • Pile Driving Analyzer® (PDA) testing
  • Observation of shoring and tieback installations and performance testing on tiebacks
  • Vibration monitoring
In-house Geotechnical Laboratory Services

GeoDesign maintains state-of-the-art geotechnical and materials testing laboratories. As a result, we can deliver you efficient service and high quality assurance.

In addition to standard geotechnical tests, we offer:

  • Consolidation testing
  • Direct shear testing
  • Triaxial testing
  • Permeability testing
  • Resilient modulus testing

Our laboratory accreditations and certifications include:

  • AASHTO Material Reference Laboratories (AMRL)
  • City of Los Angeles Department of Building & Safety (LA-DBS)
  • Oregon Department of Transportation (ODOT)