Garry H. Gregory, Ph.D., P.E., D.GE

Adjunct Professor (Ret.)
Oklahoma State University
School of Civil and Environmental Engineering
Stillwater, Oklahoma 74078

Principal Consultant
Gregory Geotechnical
2001 West 44th Avenue
Stillwater, Oklahoma 74074-2415
Phone: 405-747-8200 Fax: 405-747-8201

View Dr. Gregory’s Curriculum Vitae

Dr. Gregory has BS, MS, and Ph.D. degrees in Civil (Geotechnical) Engineering, is a licensed professional engineer in 12 states, and is a Board Certified Geotechnical Engineer, holding the specialty certification credential “Diplomate, Geotechnical Engineering (D.GE)” from the Academy of Geo-Professionals (AGP). He has more than 47 years of civil engineering and construction management experience and has been project engineer, project manager, or principal in charge on many major civil engineering projects. He is a member of the American Society of Civil Engineers (ASCE) and the Geo-Institute, a member of the United States Society on Dams (USSD), and a member of the Association of Environmental and Engineering Geologists (AEG). He was President of the national Geo-Institute of ASCE (2016-2017). He is past chair and continues to be an active member of the Embankments, Dams, and Slopes Committee of the Geo-Institute. Dr. Gregory was selected as the “Outstanding Oklahoma Geotechnical Engineer” 2016-2017 by the Oklahoma Chapter of the Geo-Institute. He has written and/or presented more than 60 technical papers and has been published in proceedings of regional, national, and international conferences, and in technical journals.

Dr. Gregory was Adjunct Professor in the Geotechnical Engineering area of the School of Civil and Environmental Engineering at Oklahoma State University (OSU) for 6 years until his retirement from OSU in December 2014. He was a full member of the Graduate Faculty.  He was engaged on a regular basis in teaching graduate geotechnical engineering courses, serving as advisor and committee chair to selected graduate students, and conducting sponsored research, including research on “Shear strength of fully softened clays.” Graduate courses typically taught by Dr. Gregory included: Foundation Engineering, Slope Stability, Soil-Structure Interaction, Case Histories in Geotechnical Engineering, and Rock Mechanics, among others.