John C. Lessley, PE

Vice President and Technical Principal
John C. Lessley, PE

John C. Lessley, PE is a Technical Principal and a Vice President at S&ME where he provides technical overview of the firm’s geotechnical practice, oversees senior reviewers and project managers, researches and collects regional and site-specific data for soils or testing practices and procedures, determines the scope of investigations, and prepares proposals for clients for major or highly complex projects. Mr. Lessley also performs risk analyses and reviews geotechnical aspects of engineering documentation.

Much of Mr. Lessley’s work has focused on heavy industrial development, transportation and institutional/educational/medical development. He devises and implements special purpose geotechnical and materials investigations, such as excavation dewatering studies, landslide analysis, seismic evaluations, and dam safety reevaluations and modifications. Mr. Lessley has served as geotechnical engineer on numerous projects involving assessment of potential for damage due to construction vibrations. He has served as the Geotechnical Engineer of Record for over 300 projects for various state agencies, including the SCDOT and the University of South Carolina, over this period.

John is a graduate of Virginia Tech, earning a BS in mining engineering and an MS in rock mechanics. He also pursued doctoral studies in geotechnical engineering at Georgia Tech. A registered professional engineer in seven states, he has practiced geotechnical engineering for over 35 years, including 25 years with S&ME.