Jim D. Wiethorn, Ph.D., P.E.

Principal Engineer

Jim D. Wiethorn Ph.D., P.E.

Principal Engineer

Primary Areas of Consulting

  • Crane Accident Analysis
    Crane lift duties and responsibilities
    Rigging failures
    Accident reconstruction
    Wind analysis/effects
    Steel erection/rigging
    Lift planning
  • Construction Related Failure and Damage Assessment
    Construction safety issues and responsibilities
    Code compliance issues
    Material performance/installation requirements
    Moisture ingress problems
    EIFS evaluations
    Cost analysis of construction projects
  • Wind and Wave Effects on Structures
Licensed Professional Engineer in the States of: Alabama, Arizona, Arkansas, Colorado, Connecticut, Delaware,
Florida, Georgia, Hawaii, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Maryland, Michigan, Minnesota, Mississippi,
Nevada, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina,
Tennessee, Texas, Washington, West Virginia, Wisconsin and Wyoming

Inspector for the Texas Department of Insurance

Mississippi Home Inspector Program
Oklahoma Home Inspector Program
Tennessee Home Inspector Program

Certificate of Competency:
General Contractor, State of Florida


  • National Society of Professional Engineers (NSPE)
  • American Society of Mechanical Engineers (ASME)
    - ASME B30 Main Committee Member- Cranes
    - ASME B30.3 - Construction Tower Cranes
    - ASME B30.29 - Self-Erect Tower Crane
  • National Commission for the Certification of Crane Operators (NCCCO)
     - Tower Crane Committee
     - Rigging Task Force Committee
  • American Society for Testing Materials (ASTM)
    - ASTM E06 - Performance of Buildings (EIFS)
    - ASTM E06.58 - EIFS Wind Effects
  • American Institute of Steel Construction (AISC)
  • Chi Epsilon
  • Tau Beta Pi
  • Engineering Advisory Board (EAB), University of Texas
    - Cockrell College of Engineering (2005)
      [ Department of Civil, Architectural, and Environmental Engineering (CAEE) (2008) ]
  • Academy of Distinguished Alumni, University of Texas-CAEE (2008)
  • Baylor University ECS Advocates Board
     - College of Engineering and Computer Science (2009)

College Education

  • Doctorate of Philosophy in Civil Architectural & Environmental Engineering
    University of Texas at Austin, 2018
  • Master of Science in Architectural Engineering
    University of Texas at Austin, 1975
  • Bachelor of Science in Architectural Engineering
    University of Texas at Austin, 1973
  • Bachelor of Arts in Math and Physics
    Baylor University, 1973

Testimony history available upon request.

625 Industrial Blvd. * Sugar Land, TX 77478 * 281-313-9700 * HaagEngineering.com