is the owner and President of NCS GeoResources, LLC, a geotechnical firm located in Tucson, Arizona, and has more than 35 years of experience. He earned his doctorate from the University of Arizona in Tucson. He has worked on major infrastructure facilities in many parts of the country including hundreds of bridges and retaining walls, as well as several ground improvements projects. He has authored or co-authored over 15 manuals for agencies such as the Federal Highway Administration (FHWA), the American Association of State Highway and Transportation Officials (AASHTO), research reports for National Cooperative Highway Research Program (NCHRP) of the Transportation Research Board (TRB), 20 webinars for ASCE's Geo-Institute, as well as self-paced web-based training for FHWA. He has delivered over 100 short courses, over 100 distance-learning presentations such as webinars, and several invited and keynote lectures.

Dr. Samtani has helped develop implementation processes and comprehensive design policies for a variety of topics related to bridges, walls, pavements, and scour for several agencies with emphasis on multi-disciplinary interaction between geotechnical, structural, drainage, roadway, and construction specialists. Currently, Naresh concentrates on forensics, expert consultation, education, research, and training services.