AASHTO Materials Standards 45h Edition (2025)
Standards and Codes

AASHTO Releases 45th Edition of Materials Standards: What Geotechnical Engineers Need to Know

The American Association of State Highway and Transportation Officials (AASHTO) has released the 45th Edition of its Standard Specifications for Transportation Materials and Methods of Sampling and Testing, along with the latest AASHTO Provisional Standards, which are commonly referred to as […]

Provo City Center Temple Micropile Underpinning by Nicholson Construction
Available Resources

Nicholson Legends and Iconic Projects: A 70-Year Celebration of Geotechnical Excellence

Nicholson Construction, one of GeoPrac.net’s long-time sponsors and a pillar of the geotechnical industry, recently celebrated its 70th anniversary with a two-part webinar series titled “Nicholson Legends and Iconic Projects.” The series featured six senior […]

Evert Hoek Distinguished Lecture Series
Available Resources

Evert Hoek Distinguished Lecture Series

If you are tired of doom scrolling and looking for something interesting to watch, check out some of the lectures given by Dr. Evert Hoek on aspects of rock mechanics and geological engineering. Dr. Hoek […]

Dynamic compaction for ground improvement
Book Reviews

Jie Han Seeks Feedback on Ground Improvement Book

Professor Jie Han is seeking feedback on the second edition of his Ground Improvement book. See his LinkedIn Post below. If you’re a geotechnical engineer looking to sharpen your understanding of ground improvement techniques, Principles […]

Attenuator instrumentation by Landslide Technologies
Geologic Hazards

Cool Geohazard Instrumentation Project

I just had to highlight this cool geohazard instrumentation project undertaken by Landslide Technology (Cornforth Consultants). It involves installing instrumentation on several attenuator systems along the Ketchum-Challis Highway north of Stanley, ID for the FHWA. I […]

Wind turbines
Available Resources

New Guidance for Wind Turbine Foundations

A new technical report on Cyclic Degradation in the Geotechnical Design of Wind Turbine Foundations has been released by the American Clean Power Association. The draft report reviews the behavior of foundation support geomaterials under […]