Terrance Zich PE, PG, CPG

Senior Managing Engineer

Contact Info




(386) 588-7196




Orlando, FL


Terrance Zich is a Senior Managing Engineer with YA Engineering Services, Inc. (YAES). His work focuses on solving complex problems related to his geotechnical engineering, environmental engineering, and geological experience. He has extensive forensic experience in cases involving environmental, geotechnical, and geological assessments. The forensic assessments include the evaluation of near surface foundation sub-grade and deep soil conditions as revealed in soil borings and geophysical testing, together with the observed details of structures for the evaluation of the soil characteristic relationship to the appearance of recorded distress. This information is used to form an opinion of the apparent cause or causes of reported distress from problematic subsurface conditions, including but not limited to sinkholes, shrink/swell clays, collapsible soils, organic and other buried debris, landslides, and other soil failure events. Mr. Zich has been involved with builder’s risk and construction defect investigations with regards to soils type, associated soils work, and earth movement. Mr. Zich has provided sworn affidavits, depositions, advice, and testimony as part of litigation support services and has performed peer review of studies performed by other consulting firms. Mr. Zich has conducted soils associated work and other environmental, geological, and geotechnical projects across the United States, as well as in Canada, Mexico, Australia, Belgium, Thailand, Trinidad & Tobago, and Vietnam. Mr. Zich has experience in directing projects related to municipal solid waste landfill contamination issues (groundwater and landfill gas), site suitability studies, mine site studies, hazardous waste site cleanup, SWPP Plans, SPCC Plans, watershed studies, water resources studies, hydrogeological studies, wetland issues, all phases of Environmental Site Assessments (including large tracts of timberlands with over 2 million acres assessed) and other environmental, subsurface and groundwater hydrology related projects. He has directed projects related to Geotechnical engineering design, construction material testing and inspection, non-destructive testing, drilling operations and engineering geology. Mr. Zich joined YAES in 2021. Prior to joining YAES, he spent eleven years at Envista Forensics as Technical Field Supervisor/Senior Engineer/Geotechnical Lead.

Publications and Presentations

  • Geological Engineering Aspects of Underground Construction, Terrance Zich, Envista Asia-Pacific and Oceania Webinars
  • General Sinkhole Geology of Florida as it Relates to Florida Statute Chapter 627, Terrance Zich, Southwest Florida Claims Association Meeting, Fort Myers, FL
  • Mining Investigations September, Terrance Zich, Envista US Webinar Presentations
  • Retaining Wall Failures, Terrance Zich, Envista Asia-Pacific and Oceania Webinars
  • How to Read a Geotechnical Report, Terrance Zich, Orlando, FL
  • Mining Investigations, Terrance Zich, Envista Asia-Pacific and Oceania Webinars
  • Geological and Engineering Aspects of Sinkhole Development, Terrance Zich, Worley Claims Conference
  • General Sinkhole Geology of Florida as it Relates to Florida Statute Chapter 627, Terrance Zich, Orlando Claims Association Meeting, Orlando, FL
  • Environmental Claims, Terrance Zich, Envista US Webinar Presentations
  • General Sinkhole Geology of Florida, Terrance Zich, North Dakota Geological Society,, Bismarck, ND
  • Understanding Geophysics for Claims Investigation, Terrance Zich, Envista US Webinar Presentations
  • Soils Mechanics for Claims Professionals: Geological and Engineering Aspects of Problematic Soil Conditions, Terrance Zich, Envista US Webinar Presentations
  • Strategies for Handling Complex Tunneling & Underground Construction Claims, Terrance Zich, Envista US Webinar Presentations
  • Geological and Engineering Aspects of Sinkhole/Problematic Soil Conditions, Terrance Zich, Envista US Webinar Presentations
  • Tunneling Underground Construction Claims, Terrance Zich, Envista Asia-Pacific and Oceania Webinars
  • Soil Contamination & Groundwater Claims, Terrance Zich, Envista US Webinar Presentations


  • University of Colorado, Colorado State University, University of North Dakota, and Mary College
    Graduate Courses - Geology, Hydrology, Engineering
  • University of North Dakota  |  Grand Forks, North Dakota
    Bachelor of Science - Geological Engineering, Magna cum laude
  • North Carolina State University, Stream Restoration Institute  |  Raleigh, North Carolina
    River Courses 1 & 2 -

Professional Experience

  • 2021 - Current  |  Senior Managing Engineer  |  YA Engineering Services
  • 2018 - 2021  |  Senior Project Engineer - Geotechnical Lead  |  Envista Forensics – Orlando, FL
  • 2010 - 2018  |  Geotechnical Field Supervisor  |  Envista Forensics – Orlando, FL
  • 2009 - 2010  |  Senior Engineer  |  HSA Engineers and Scientists – Altamonte Springs, FL
  • 2007 - 2009  |  Regional Manager  |  Giles Engineering Associates, Inc. – Sanford, FL
  • 2006 - 2007  |  President  |  ES Geotechnologies – Milpitas, CA
  • 2005 - 2006  |  Environmental Group Leader  |  TTL, Inc. – Albany, GA
  • 1997 - 2005  |  Vice President / Senior Project Manager / Senior Associate  |  Tribble & Richardson / DSAtlantic / Stantec Consulting – Macon, GA
  • 1996 - 1997  |  Owner / Manager  |  Z Environmental and Geological Engineering – Bismarck, ND
  • 1993 - 1996  |  Branch Manager  |  Twin City Testing / Huntingdon Engineering and Environmental / Maxim Technologies – Bismarck, ND
  • 1989 - 1993  |  Branch Manager  |  Braun Engineering / Braun Intertec – Bismarck, ND
  • 1979 - 1989  |  Senior Environmental Engineer / Hydrologist  |  The North American Coal Corporation / The Coteau Properties Company – Bismarck, ND
  • 1979 - 1979  |  Water Resources Engineer  |  City of Denver - Denver, CO
  • 1978 - 1979  |  Environmental Engineer  |  North Dakota Public Service Commission – Bismarck, ND

Areas of Practice

  • Damage Assessment
  • Failure Analysis
  • Litigation Support
  • Repair and Rehabilitation Design

Representative Consulting Assignments

  • Energy Center
    Jessup, Pennsylvania  |  Site investigation and review of documents related to structure settlement related to ground improvement using deep dynamic compaction of mine spoils, complicated by buried landfill debris and included a remediation review
  • Mine Site
    Miami AZ  |  Cause and origin of excess erosion on man-made stream channel diversion
  • Townhouse Residential Development
    Lake Mary, Florida  |  Construction defect litigation as it relates site related to soil preparation earthwork development including deposition
  • Mid-rise Hotel
    Chelsea, Massachusetts  |  Construction defect regarding settlement of 5-story hotel with regards to a ground improvement method of soft soils using a Ram Aggregate Pier foundation support
  • Bridge Pier Foundation Construction
    Westchester County, New York  |  Addressed cause and origin of failed pier during construction and review of remediation plan
  • Healthcare Center
    Pahrump, Nevada  |  Addressed settlement issues as it related to problematic collapsible soils
  • Tunnel construction
    Vietnam  |  Cause and origin of tunnel collapse
  • Landslide
    Pittsburg Pennsylvania  |  Cause and origin of landslide on slope behind high-rise apartment buildings
  • Townhouse Residential Development
    Longmont, Colorado  |  Construction defect litigation as it relates to subgrade preparation of roadways and driveways with regards to expansive (shrink-swell) clay problematic soils including deposition
  • Residential Building
    West Melbourne Florida  |  Construction defect litigation as it relates discovery of buried debris including deposition
  • Residential Development Area
    Casper, Wyoming  |  Construction defect related to expansive and collapse soil, review of documents and consideration of standard of care issues with civil/geotechnical design engineers
  • Healthcare Center
    Houston, Texas  |  Construction defect review with regards to treatment of expansive (shrink-swell) clay problematic soils
  • Sinkhole
    Florida, Pennsylvania and Tennessee including field subsurface investigations, reports including remediation plans, including multiple depositions and trial testimony


  • American Society of Civil Engineers
  • American Institute of Professional Geologists
  • European Federation of Geologist


  • PE  |  Professional Engineer
  • PG  |  Professional Geologist
  • CPG  |  Certified Professional Geologist
  • EurGeol  |  European Geologist


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