Sevier Bridge Dam | View project details »
Wide Hollow Dam | View project details »
Provo Resevoir Canal Enclosure | View project details »

Gerhart Cole Inc. is a Utah geotechnical firm established in 1998; we provide geotechnical engineering services and solutions to the built environment. Active technical involvement of our principals in projects provides our clients access to nearly a century of diverse geotechnical experience. (Read more about our services and expertise ▲)


  • Geotechnical Engineering
  • Dam Engineering
  • Forensic Engineering / Expert Witness
  • Geology and Geologic Engineering
  • Foundation Engineering
  • Earth Shoring Design
  • Design-Build
  • Project Management
  • Construction Management / Observation
  • Dynamic Pile Testing (PDA)
  • Cross-Hole Sonic Logging (CSL)
  • Pile Integrity Testing (PIT)
  • Vibration Monitoring
  • Pre-Construction Video Surveys
  • Micropile and Soil Nail Testing
  • SPT Energy Testing
  • Geotechnical Instrumentation
  • Geotechnical In-Situ and Laboratory Testing


  • Dams / Dam Safety
  • Slurry Walls
  • Bio-Polymer Drains
  • Forensic and Performance Assessments of Geotechnical Works
  • Retaining Walls
  • Earth Shoring Systems
  • Shallow and Deep Foundations
  • Seismic Ground Response and Seismic Hazard Analyses
  • Liquefaction and Cyclic Softening
  • Ground Improvement and Soft Ground Engineering
  • Slope Stability and Landslides
  • Soil and Rock Mechanics
  • Horizontal Directional Drilling and Trenchless Technologies
  • Complex Site Characterization
  • Numerical Modeling

Our project experience includes: geotechnical field services, analyses, and construction quality assurance for over 50 dams (earth, rock-fill, and roller compacted concrete) located primarily in the Western United States; project management, field studies, and geotechnical design for over 70 miles of interstate highway (including embankments, retaining walls, and bridge foundations); geotechnical design, analysis, and testing of over 100 deep foundation projects; design services for over 110 earth shoring projects, and managing geotechnical engineering project assignments for various facilities and infrastructure locally, nationally, and worldwide. (see our projects»)

Our objective is to provide world-class geotechnical services at local/small business costs.