Principals

Jeffrey E. Haight, S.E. 
Jeff began his engineering career in 1988 as a structural designer working on commercial and educational projects. In 1992 he joined Peter W. Ehlen and Associates as a project engineer for educational, healthcare, governmental, commercial, industrial, and residential projects.  In 1999 he became a partner with Peter Ehlen and John Spiess to create the firm Ehlen Spiess & Haight, Inc., which he currently serves as President.
Professional Registration in California:  Structural Engineer, Civil Engineer
Professional Affiliations:
  • Structural Engineers Association of Southern California 
  • California Office of Emergency Services Safety Assessment Program Volunteer
    Deployed to St. Bernard Parish, LA after Hurricanes Katrina and Rita
  • American Institute of Steel Construction
Mark Crittenden,  S.E. 
Mark worked in Oxnard, CA for nine years for a multi-faceted A/E firm before coming to Santa Barbara in 1985 to open his own firm, Mark Crittenden, Structural Engineers. His experience grew as he worked on a wide variety of commercial, industrial, historical, religious and residential buildings, utilizing a wide variety of materials, methodologies and site conditions.  In 2006 he joined Ehlen Spiess & Haight, Inc. as a part- time project engineer working on police facilities, school and commercial buildings.  In August 2011 he became a full time project engineer.  In June of 2018 Mark became a partner, and in 2019 became Vice-President of Ehlen Spiess & Haight, Inc.
 
Professional Registration in California:  Structural Engineer, Civil Engineer
 
Professional Affiliations
  • Structural Engineers Association of California
  • American Institute of Steel Construction
  • American Society of Civil Engineers- Structural Engineering Institute

Senior Structural Engineer

John W. Spiess, S.E. 
John graduated from Purdue University in 1970 with a Bachelor of Science degree in Civil Engineering.  He joined the firm in 1984, co-founded Ehlen & Spiess, Inc in 1994.  In 2019 John retired as a Principal and is currently a Senior Structural Engineer.
Professional Registration in California:  Structural Engineer, Civil Engineer
Professional Affiliations:
  • Structural Engineers Association of Southern California Tri-Counties Chapter Director
  • California Office of Emergency Services Safety Assessment Program Volunteer
  • American Society of Civil Engineers Structural Engineering Institute
Aaron DeGough, C.E.
Jasper Jacobs, C.E. 

Engineers

Gabe Sanchez, C.E.