Trent Dreese, PE
Senior Vice President and Director of Geotechnical, Dams & Hydraulics
Dreese leads geotechnical, dam, and grouting engineering efforts across North America, delivering advanced solutions that enhance infrastructure performance and resilience.

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Trent Dreese provides leadership, management, and technical oversight for geotechnical and dam projects across North America. He guides multidisciplinary teams delivering dam design, inspection, and assessment services, while overseeing complex water resources engineering initiatives that strengthen critical infrastructure. He ensures projects move forward with clarity and precision, from design reviews through construction contract administration for dam and flood control systems.
Dreese brings extensive industry experience in geotechnical engineering, supporting projects that span transportation, water, and environmental sectors. He leads subsurface investigations, foundation design, and evaluations of earth and rock stability, while advancing solutions in groundwater modeling, seepage control, and ground modification. Dreese directs technical, business, and research efforts, leading the development and application of innovative approaches such as the IntelliGrout® system.
A 40-year industry veteran, Dreese has evaluated and provided engineering services for more than 100 dams. A sought-after speaker at industry events, he provided a keynote lecture at the 6th International Conference on Grouting and Deep Mixing and served as an instructor at the Grouting and Ground Improvement Short Course for over 25 years, where he shared his expertise in grouting design and dam remediation. During his tenure, the course was affiliated with the University of Florida, Colorado School of Mines, and the University of Texas at Austin.
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