E. Onur Tastan, Ph.D., P.E.

Onur Tastan is a Principal Geotechnical Engineer based in North Carolina with more than 13 years of experience focused on geotechnical and geostructural engineering including field investigation, analysis, design, and construction support.

Onur Tastan is a Principal Geotechnical Engineer based in North Carolina with more than 13 years of experience focused on geotechnical and geostructural engineering including field investigation, analysis, design, and construction support.

Onur helped clients for a diverse mix of projects including dams and levees, nuclear power plants, water treatment plants, bridges, landfills, and flood control structures. He has assisted clients with shallow and deep foundation designs, slope stabilization and retaining structure analyses/designs, ground improvement, seismic hazard assessments and consequence evaluation, fragility analyses, risk-informed decision making including potential failure modes analysis, semi-quantitative and quantitative risk assessments, and numerical modeling for geostructural projects.

Experienced in advanced numerical models, Onur has used them effectively in projects for optimized designs. His specialties include finite-element based soil-structure interaction modelling, seismic hazard/consequence assessment, and risk-informed engineering for dams and levees. Additionally, his experience includes task and project management of multi-disciplinary projects which were regulated by Nuclear Regulatory Commission (NRC) and U.S. Army Corps of Engineers (USACE).

Onur advances the state of the practice as member of the following committees and published more than 15 journal and conference papers: ASCE 1 Committee Developing Standard for Geotechnical Analysis, Design, Construction, Inspection and Monitoring of Nuclear Safety-Related Structures; USSD, Committee on Dam Safety; the USSD Embankment Dams Committee; and ASCE Geo-Institute's Embankments, Dams, and Slopes Technical Committee.

Contact Onur Tastan at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1 704-227-0868.

Career Summary of E. Onur Tastan, Ph.D., P.E.

  • Specialties: Geotechnical and Geostructural Engineering; Geotechnical Earthquake Engineering; Foundation Design; Levees, Dams; Risk Assessment; Technical Due Diligence, Failure Modes Analysis
  • Practice Areas: Geotechnical and Geoenvironmental Engineering
  • Disciplines: Geotechnical Engineering
  • Education: Ph.D., Geotechnical Engineering, Colorado State University, Fort Collins, CO, 2009; M.S., Geotechnical Engineering, University of Wisconsin, Madison, WI, 2005; B.S., Civil Engineering, Middle East Technical University, Ankara, Turkey, 2003
  • Registration: Professional Engineer: MI, No. 6201058387; NC, No. 047489; SC, No. 35911; TN, No. 121918

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